2023 global network outage report and internet health check

Editor’s note: This is an archive of 2023 incidents as tracked by Cisco subsidiary ThousandEyes. For current trends, see the 2024 outage report and internet health check, which is updated weekly. We’ve also archived our coverage from the Covid-19 years, when we began tracking the performance of cloud providers and ISPs and reporting network outages and internet disruptions.

Internet report for December 11-17, 2023

ThousandEyes reported 175 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of December 11-17. That’s up from 157 the week prior, an increase of 11%. Specific to the U.S., there were 71 outages. That’s down from 78 outages the week prior, a decrease of 9%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages dropped from 119 to 110 outages, a decline of 8%, and in the U.S. they decreased from 58 to 40, a decline of 31%.

Public cloud network outages: Globally, cloud provider network outages increased from seven to 19 last week. In the U.S., they increased from five to nine.

Collaboration app network outages: Globally, collaboration app network outages increased from three to four outages. In the U.S., collaboration app network outages increased from one to three. 

Two notable outages

On December 15, TATA Communications (America) Inc., a global ISP and part of the Indian-owned TATA Communications, experienced an outage that impacted many of its downstream partners and customers in multiple regions, including the U.S., Hong Kong, Vietnam, Japan, Singapore, India, South Korea, Sri Lanka, Indonesia, Malaysia, the U.K., Philippines, and Brazil. The outage lasted one hour and 8 minutes in total and was divided into two episodes over a one hour and 30-minute period. First observed around 11:05 AM EST, the first occurrence lasted around one hour and 4-minutes and appeared to be initially centered on TATA nodes located in Singapore. Ten minutes into the first occurrence, the nodes located in Singapore were joined by nodes located in Hong Kong in exhibiting outage conditions. Around 30 minutes after first being observed, the nodes exhibiting outage conditions increased to include nodes located in Singapore, Seville, Spain, Hong Kong, Chicago, IL, and Tokyo, Japan. The final part of the first occurrence saw all nodes, with the exception of those located in Singapore, appear to clear. Twenty minutes after appearing to clear, nodes located in Singapore once again exhibited outage conditions. The outage was cleared around 12:35 PM EST.  Click here for an interactive view.

On December 17, Time Warner Cable, a U.S. based ISP, experienced a disruption that impacted a number of customers and partners across the U.S. The outage was observed across two periods over the course of twenty minutes. First observed at around 8:40 AM EDT, the first occurrence lasted eight minutes and appeared to center on Time Warner Cable nodes located in New York, NY. Five minutes after appearing to clear, nodes located in New York, NY, were again observed exhibiting outage conditions. The outage lasted a total of 11 minutes and was cleared at around 9:00 AM EDT. Click here for an interactive view.

Internet report for December 4-10, 2023

After a few weeks of trending downward, outages jumped in many categories during the week of December 4-10. ThousandEyes reported 157 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service). That’s up from 97 the week prior – a significant 62% increase. Specific to the U.S., there were 78 outages. That’s more than double (160% increase) the 30 outages in the U.S. during the week prior. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages jumped from 65 to 119 outages, an increase of 83%, and in the U.S., they skyrocketed from 16 to 58, an increase of 263%.

Public cloud network outages: Globally, cloud provider network outages increased from five to seven last week. In the U.S., they increased from one to five.

Collaboration app network outages: Globally, collaboration app network outages remained the same at three outages. In the U.S., collaboration app network outages increased from zero to one outage. 

Two notable outages

On December 6, Cogent Communications, a U.S. based multinational transit provider, experienced an outage that impacted multiple downstream providers as well as Cogent customers across multiple regions, including the U.S., Canada, South Africa, the U.K., Turkey, South Korea, Japan, China, Taiwan, and Australia. The outage, lasting a total of 36 minutes, was divided into four occurrences over a one-hour and fifteen-minute period. The first occurrence was observed around 11:40 PM EST and appeared to initially be centered on Cogent nodes located in San Francisco, CA. Fifteen minutes into the first occurrence, the nodes located in San Francisco, CA were joined by nodes located in San Jose, CA, and Seattle, WA, in exhibiting outage conditions. Around five minutes after the issue initially appeared to have cleared, a second occurrence was observed. This second occurrence lasted approximately four minutes and appeared to be centered around nodes located in San Francisco, CA and Oakland, CA. Fifteen minutes after the second occurrence appeared to clear, nodes located in San Francisco, CA were joined by nodes located in Salt Lake City, UT, in exhibiting outage conditions.  Another ten minutes later, a fourth occurrence was observed, this time appearing to be centered around nodes located in Oakland, CA. The outage was cleared around 12:55 AM EST. Click here for an interactive view.

On December 8, AWS experienced some disruption that appeared to impact users and customers leveraging CloudFront services located in Los Angeles, CA. First observed around 7:10 AM EST, the disruption lasted 19 minutes and appeared to center on Amazon nodes located in Los Angeles, CA. The outage was cleared around 7:30 AM EST. Click here for an interactive view.

Internet report for November 27- December 3, 2023

ThousandEyes reported 97 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week ofNovember 27- December 3. That’s down from 114 the week prior, a decrease of 15%. Specific to the U.S., there were 30 outages. That’s down from 38 outages the week prior, a decrease of 21%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages dropped from 83 to 65 outages, a decline of 22%, and in the U.S. they decreased from 24 to 16, a decline of 33%.

Public cloud network outages: Globally, cloud provider network outages increased from three to five last week. In the U.S., they decreased from three to one.

Collaboration app network outages: Globally, collaboration app network outages decreased from four to three outages. In the U.S., collaboration app network outages remained at zero for the second week in a row. 

Two notable outages

On November 29, Comcast Communications experienced an outage that impacted a number of downstream partners and customers across the U.S. The outage, lasting 7 minutes, was first observed around 1:30 AM EST and appeared to be centered on Comcast nodes located in Dallas, TX. Five minutes into the outage the nodes exhibiting outage conditions, located in Dallas, TX, appeared to increase. The apparent increase appeared to coincide with an increase in the number of impacted downstream customers and partners. The outage was cleared around 1:40 AM EST. Click here for an interactive view.

On November 28, Cogent Communications, a U.S. based multinational transit provider, experienced an outage that impacted multiple downstream providers as well as Cogent customers across multiple regions, including the U.S., Austria, and Singapore. The outage, lasting 19 minutes, was first observed around 7:55 PM EST and appeared to center on Cogent nodes located in Marseille, France. After approximately five minutes into the outage there was an observed rise in the number of nodes located in Marseille, France, exhibiting outage conditions. This increase coincided with an increase in the number of impacted downstream customers and partners. The outage was cleared around 8:15 PM EST. Click here for an interactive view.

Internet report for November 20-26, 2023

ThousandEyes reported 114 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of November 20-26. That’s down from 153 the week prior, a decrease of 25%. Specific to the U.S., there were 38 outages. That’s down from 57 outages the week prior, a decrease of 33%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages decreased from 101 to 83 outages, an 18% decrease, and in the U.S., they decreased from 33 to 24 outages, a decline of 27%.

Public cloud network outages: Cloud provider network outages decreased to three, both globally and in the U.S.

Collaboration app network outages: Globally, there were four collaboration app network outages, which is the same as the week prior. In the U.S., collaboration app network outages dropped down to zero.

Two notable outages

On November 22, Cogent Communications, a U.S. based multinational transit provider, experienced an outage that impacted multiple downstream providers as well as Cogent customers across multiple regions, including the U.S., Spain, Germany, Brazil, Nigeria, Canada, South Africa, the U.K., Australia, and Bulgaria. The outage, lasting a total of 28 minutes, was divided into three occurrences over a forty-minute period. The first occurrence was observed around 5:15 AM EST and appeared to initially be centered on Cogent nodes located in Cleveland, OH. Ten minutes after first being observed, nodes located in Cleveland, OH appeared to clear and were replaced by nodes located in San Jose, CA, and Denver, CO, exhibiting outage conditions Around five minutes after the issue initially appeared to have cleared, a second occurrence was observed. This second occurrence lasted approximately four minutes and appeared to be centered around nodes located in Oakland, CA, and Seattle, WA. Another five minutes later, a third occurrence was observed, this time appearing to be centered around nodes located in San Jose, CA, Oakland, CA, and San Francisco, CA. The outage was cleared around 5:55 AM EST. Click here for an interactive view.

On November 25, Time Warner Cable, a U.S. based ISP, experienced an outage that impacted multiple downstream providers as well as Time Warner Cable customers within the U.S. The outage was first observed at around 4:20 AM EST and appeared to center on Time Warner Cable nodes located in New York, NY. The outage lasted a total of 14 minutes and was cleared at around 4:35 AM EST. Click here for an interactive view.

Internet report for November 13-19, 2023

ThousandEyes reported 153 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of November 13-19. That’s down from 182 the week prior, a decrease of 16%. Specific to the U.S., there were 57 outages. That’s down from 70 outages the week prior, a decrease of 19%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages declined from 122 to 101 outages, a decline of 17%, and in the U.S. they decreased from 36 to 33, a decline of 8%.

Public cloud network outages: Globally, cloud-provider network outages remained the same as the week prior, at 12 outages. In the U.S., they decreased from 10 to 6 outages.

Collaboration app network outages: Globally, collaboration app network outages fell from 13 to four outages. In the U.S., collaboration app network outages climbed from zero to two outages.

Two notable outages

On November 15, Oracle experienced an outage on its network that impacted Oracle customers and downstream partners interacting with Oracle Cloud services in the UK South (London) region. The outage was first observed around 5:30 AM EST and appeared to center on Oracle nodes located in London, England and Slough, England. Forty minutes after being observed, the nodes located in London, England and Slough, England, were joined by nodes located in York, England and Marseille, France, in exhibiting outage conditions for around five minutes. The disruption lasted a total of 46 minutes, and connectivity appeared to be restored around 6:45 AM EST. Click here for an interactive view.

On November 14, NTT America, a global Tier 1 ISP and subsidiary of NTT Global, experienced an outage that impacted some of its customers and downstream partners in multiple regions, including the U.S., Germany, Denmark, Taiwan, China, Romania, the Netherlands, Malaysia, Singapore, the U.K., Singapore, Austria, the United Arab Emirates, and France. The outage, lasting 8 minutes, was first observed around 11:10 AM EST and appeared to initially center on NTT nodes located in Frankfurt, Germany. Around five minutes into the outage, the nodes located in Frankfurt, Germany, were joined by nodes located in Vienna, Austria, and the Capital Region of Denmark, in exhibiting outage conditions. The apparent increase of nodes exhibiting outage conditions appeared to coincide with an increase in the number of impacted downstream customers and partners. The outage was cleared around 11:20 AM EST. Click here for an interactive view.

Internet report for November 6-12, 2023

ThousandEyes reported 182 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of November 6-12. That’s up from 165 the week prior, an increase of 10%. Specific to the U.S., there were 70 outages. That’s down from 84 outages the week prior, a decrease of 17%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages fell slightly from 124 to 122 outages, a dip of 2%, and in the U.S. they decreased from 54 to 36, a decline of 33%.

Public cloud network outages: Globally, cloud-provider network outages decreased from 14 to 12 outages, and in the U.S., they decreased from 12 to ten outages.

Collaboration app network outages: Globally, collaboration app network outages jumped from one to 13 outages. In the U.S., collaboration app network outages remained at zero for the second week in a row.

Three notable outages

On November 9, Time Warner Cable, a U.S. based ISP, experienced an outage that impacted multiple downstream providers, as well as Time Warner Cable customers within the U.S. The outage was first observed at around 1:20 PM EST and appeared to center on Time Warner Cable nodes located in New York, NY. The outage lasted a total of 18 minutes and was cleared at around 1:40 PM EST. Click here for an interactive view.

On November 8, Optus, an Australian telecommunications company, experienced an outage that began around 4:05 AM AEDT and lasted for several hours until connectivity began to return between approximately 12 PM and 1 PM AEDT, with service levels appearing to be at normal levels for most users by 2 PM AEDT. According to a statement from Optus, “the Optus network received changes to routing information from an international peering network following a software upgrade. These routing information changes propagated through multiple layers in our network and exceeded preset safety levels on key routers. This resulted in those routers disconnecting from the Optus IP Core network to protect themselves.”

On November 8, NTT America, a global Tier 1 ISP and subsidiary of NTT Global, experienced an outage that impacted some of its customers and downstream partners across multiple regions including, the U.S., Singapore, Japan, India, Malaysia, and France. The outage, lasting 19 minutes, was first observed around 11:15 AM EST, and appeared to initially center on NTT nodes located in Tokyo, Japan. Fifteen minutes into the outage nodes located in Tokyo, Japan appeared to clear, and were replaced by nodes located in San Jose, CA in exhibiting outage conditions. The outage was cleared around 11:35 AM EST. Click here for an interactive view.

Internet report for October 30- November 5, 2023

ThousandEyes reported 165 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of October 30- November 5. That’s down from 221 the week prior, a decrease of 25%. Specific to the U.S., there were 84 outages. That’s down from 103 outages the week prior, a decrease of 18%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages fell from 129 to 124 outages, a dip of 4%, and in the U.S. they remained at the same level as the week prior, coming in at 54 outages.

Public cloud network outages: Globally, cloud-provider network outages decreased from 20 to 14 outages, and in the U.S., they increased from nine to 12 outages.

Collaboration app network outages: Globally, collaboration app network outages decreased from nine to just one outage. In the U.S., collaboration app network outages declined all the way from six to zero outages.

Two notable outages

On November 4, Oracle experienced an outage on its network that impacted Oracle customers and downstream partners interacting with Oracle Cloud services in the US West (San Jose) region. The outage was first observed around 7:47 PM EDT and appeared to initially center on Oracle nodes located in San Jose, CA. Twenty-five minutes after first being observed, the nodes located in San Jose, CA, were joined by nodes located in San Francisco, CA, Los Angeles, CA, and Santa Clara, CA, in exhibiting outage conditions. The disruption appeared to last a total of 43 minutes and was cleared at around 9:05 PM EDT. Click here for an interactive view.

On October 31, Cogent Communications, a U.S. based multinational transit provider, experienced an outage that impacted multiple downstream providers as well as Cogent customers across multiple regions, including the U.S. and Taiwan. The outage, lasting 24 minutes, was first observed around 3:20 AM EDT and appeared to initially be centered on Cogent nodes located in San Francisco, CA. Five minutes into the outage, the nodes located in San Francisco, CA, appeared to clear but were replaced by nodes located in Oklahoma City, OK, in exhibiting outage conditions. The outage was cleared around 3:45 AM EDT. Click here for an interactive view.

Internet report for October 23-29, 2023

ThousandEyes reported 221 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of October 23-29. That’s up from 163 the week prior, an increase of 36%. Specific to the U.S., there were 103 outages. That’s up from 75 outages the week prior, an increase of 37%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages climbed from 105 to 129 outages, a 23% increase, and in the U.S. they increased from 40 to 54, an increase of 35%.

Public cloud network outages: Globally, cloud-provider network outages increased from 17 to 20 outages, and in the U.S., they decreased from 13 to nine outages.

Collaboration app network outages: Globally, collaboration app network outages increased from four to nine outages. In the U.S., collaboration app network outages jumped from one to six outages.

Two notable outages

On October 29, TATA Communications (America) Inc., a global ISP and part of the Indian-owned TATA Communications, experienced an outage that impacted many of its downstream partners and customers in multiple regions, including the U.S., Hong Kong, Vietnam, Japan, Germany, Singapore, Mexico, Australia, the Philippines, Thailand, and China. The outage lasted 51 minutes in total and was divided into four episodes over a one hour and 20-minute period, first observed around 1:55 AM EDT. The outage was cleared around 3:15 AM EDT. Click here for an interactive view.

On October 24, NTT America, a global Tier 1 ISP and subsidiary of NTT Global, experienced an outage that impacted some of its customers and downstream partners in multiple regions including the U.S., China, South Korea, the Netherlands, Singapore, Switzerland, France, Poland, Germany, Denmark, the U.K., Japan, and Ireland. The outage, lasting 9 minutes, was first observed around 3:05 PM EDT and appeared to initially center on NTT nodes located in San Jose, CA, Los Angeles, CA, Seattle, WA, Tokyo, Japan and Osaka, Japan. Around five minutes into the outage, the nodes located in San Jose, CA, Los Angeles, CA, Seattle, WA, Tokyo, Japan and Osaka, Japan, were joined by nodes located in Ashburn VA, and Dallas, TX, in exhibiting outage conditions. The apparent increase of nodes exhibiting outage conditions appeared to coincide with an increase in the number of impacted downstream customers and partners. The outage was cleared around 3:15 PM EDT. Click here for an interactive view.

Internet report for October 16-22, 2023

ThousandEyes reported 163 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of October 16-22. That’s down from 192 the week prior, a decrease of 15%. Specific to the U.S., there were 75 outages, which is the same number as the week prior. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages fell from 159 to 105 outages, a 34% decline, and in the U.S. they fell from 61 to 40, a decrease of 34%.

Public cloud network outages: Globally, cloud-provider network outages more than doubled from seven to 17 outages, and in the U.S., they climbed from six to 13 outages.

Collaboration app network outages: Globally, collaboration app network outages increased from three  to four outages. In the U.S., collaboration app network outages fell from two to one.

Two notable outages

On October 16, Hurricane Electric, a network transit provider headquartered in Fremont, CA, experienced an outage that impacted customers and downstream partners across multiple regions, including the U.S., Australia, China, Canada, Argentina, Hong Kong, Malaysia, and South Africa. The outage, first observed around 12:00 AM EDT, lasted 32 minutes in total and was divided into three occurrences over a 55-minute period. The first occurrence appeared to center on Hurricane Electric nodes located in New York, NY and San Jose, CA. Fifteen minutes after the first occurrence appeared to clear, the second occurrence was observed. Lasting 24 minutes, the outage initially appeared to center on nodes located in San Jose, CA, New York, NY and Paris, France. Around fifteen minutes into the second occurrence, the nodes located in San Jose, CA, appeared to clear leaving nodes located in New York, NY and Paris France exhibiting outage conditions. Five minutes after the second occurrence appeared to clear, the third occurrence was observed, appearing to center on nodes located in New York, NY. The outage was cleared at around 12:55 AM EDT. Click here for an interactive view.

On October 19, Comcast Communications experienced an outage that impacted a number of downstream partners and customers across the U.S. The outage, lasting a total of 4 minutes, consisted of two occurrences over a 14-minute period. The first occurrence was observed around 8:35 PM EDT and appeared to center on Comcast nodes located in Dallas, TX. Five minutes after appearing to clear, the nodes located in Dallas, TX, once again appeared to exhibit outage conditions. The outage was cleared around 8:49 PM EDT. Click here for an interactive view.

Internet report for October 9-15, 2023

ThousandEyes reported 192 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of October 9-15. That’s up from 184 the week prior, a increase of 4%. Specific to the U.S., outages increased from 69 to 75, up 9%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages climbed from 124 to 159 outages, a 28% increase, and in the U.S. they increased from 39 to 61, an increase of 56%.

Public cloud network outages: Globally, cloud-provider network outages dropped from 23 to seven outages, and in the U.S., they fell from 15 to six outages.

Collaboration app network outages: Globally, collaboration app network outages increased from two to three outages. In the U.S., collaboration app network outages went from zero to two.

Two notable outages

On October 14, Level 3 Communications, a U.S. based Tier 1 carrier, experienced an outage that impacted multiple downstream partners and customers in multiple regions including the U.S., France, Spain, Austria, Germany, Ireland, and India. The outage, lasting a total of 20 minutes over a 55-minute period, was divided into a series of occurrences. First observed around 4:40 AM EDT, the outage appeared to center on nodes located in Portland, OR. The outage appeared to clear completely around 5:35 AM EDT. Click here for an interactive view.

On October 10, Microsoft experienced an outage on its network that impacted some downstream partners and access to services running on Microsoft environments in multiple regions including the U.S., France, South Africa, Brazil, the Netherlands, Singapore, China, and the U.K.  The outage, which lasted 9 minutes, was first observed around 11:20 AM EDT and appeared to center on Microsoft nodes located in Des Moines, IA. The outage was cleared around 11:30 AM EDT. Click here for an interactive view.

Internet report for October 2-8, 2023

ThousandEyes reported 184 global outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of October 2-8. That’s up from 136 the week prior, an increase of 35%. U.S. outages climbed 19% from 58 to 69. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages climbed from 94 to 124 outages, a 32% increase, and in the U.S. they increased from 32 to 39, an increase of 22%.

Public cloud network outages: Globally, cloud-provider network outages jumped from 10 to 23 outages, and in the U.S., they more than doubled from 7 to 15 outages.

Collaboration app network outages: Globally, collaboration app network outages decreased from eight to two outages. In the U.S., collaboration app network outages dropped back to zero.

Two notable outages

On October 5, Hurricane Electric, a network transit provider headquartered in Fremont, CA, experienced an outage that impacted customers and downstream partners across multiple regions, including the U.S., Argentina, Malaysia, South Africa, Indonesia, Canada, Kenya, China, and Australia. The outage, first observed at around 6:25 PM EDT, lasted 33 minutes in total and was divided into three occurrences over one hour. The first occurrence appeared to center on Hurricane Electric nodes located in New York, NY.  Fifteen minutes after the first occurrence appeared to clear, the second occurrence was observed. Lasting 29 minutes, the outage initially appeared to center on nodes located in San Jose, CA. Around five minutes into the second occurrence, the nodes located in San Jose, CA, were joined by nodes located in New York, NY and Chicago, IL, in exhibiting outage conditions. Around 7:00 PM EDT, the nodes located in New York, NY and Chicago, IL, appeared to clear, leaving just the nodes located in San Jose, CA, in exhibiting outage conditions. Five minutes later, the nodes in San Jose, CA, appeared to clear, and nodes located in New York, NY, Chicago, IL and Paris, France, began exhibiting outage conditions. A further five minutes later, nodes located in New York, NY and Chicago, IL, appeared to clear. The nodes located in Paris, France, were joined by nodes located in Marseille, France, in exhibiting outage conditions. Five minutes after the second occurrence appeared to clear, the third occurrence was observed, appearing to center on nodes located in New York, NY. The outage was cleared at around 7:25 PM EDT. Click here for an interactive view.

On October 4, Level 3 Communications, a U.S. based Tier 1 carrier, experienced an outage that impacted multiple downstream partners and customers across multiple regions including the U.S., Canada, Brazil, the U.K., Singapore, and India. The outage, lasting 8 minutes, was first observed around 12:16 AM EDT and appeared to be centered on Level 3 nodes located in Philadelphia, PA. The outage was cleared around 12:25 AM EDT. Click here for an interactive view.

Internet report for September 25 – October 1, 2023

ThousandEyes reported 136 global outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of September 25 – October 1. That’s a significant drop from 194 the week prior, a decrease of 30%. U.S. outages likewise fell 30%, decreasing from 83 to 58. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages decreased from 137 to 94, a decline of 31%, and in the U.S. they decreased from 47 to 32, a drop of 32%.

Public cloud network outages: Globally, cloud-provider network outages decreased from 16 to 10, and in the U.S., they fell from 15 to 7.

Collaboration app network outages: Globally, collaboration app network outages increased from zero to eight. In the U.S., there were seven collaboration-app network outages, up from zero the week prior.

Two notable outages

On September 27, Rackspace Technology, a managed cloud computing provider headquartered in San Antonio, Texas, experienced a series of outages over a period of fifteen minutes that impacted multiple downstream providers, as well as Rackspace customers within multiple regions including the U.S. and India. The outage, lasting a total of 8 minutes, was first observed around 3:50 AM EDT and appeared to center on Rackspace nodes located in Dallas, TX. The outage was cleared around 4:05 AM EDT. Click here for an interactive view.

On September 28, Lumen, a U.S. based Tier 1 carrier (previously known as CenturyLink), experienced two outage occurrences over a fifteen-minute period that impacted downstream partners and customers across the U.S. The outage, lasting a total of 8 minutes, was first observed around 8:20 PM EDT and appeared to initially be centered on CenturyLink nodes located in New York, NY and Washington, DC. Ten minutes after first being observed, the nodes located in New York, NY, appeared to clear, leaving just the nodes located in Washington, DC in exhibiting outage conditions. The outage was cleared around 8:35 PM EDT. Click here for an interactive view.

Internet report for September 18-24, 2023

ThousandEyes reported 194 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of September 18-24. That’s down 15% from 229 outage events the week prior. Specific to the U.S., outages fell from 107 to 83, a decrease of 22%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages decreased from 157 to 137, a decline of 13%, and in the U.S. they decreased from 67 to 47, a drop of 30%.

Public cloud network outages: Globally, cloud-provider network outages climbed from 13 to 16, and in the U.S., they climbed from 11 to 15.

Collaboration app network outages: Both globally and in the U.S., there were zero collaboration app network outages last week.

Two notable outages

On September 20, NTT America, a global Tier 1 ISP and subsidiary of NTT Global, experienced an outage that impacted some of its customers and downstream partners across multiple regions, including, the U.S., Germany, the Netherlands, the U.K., and France. The outage, lasting around 19 minutes, was observed around 3:25 AM EDT and appeared to initially center on NTT nodes located in Dallas, TX, and Paris, France. Around fifteen minutes into the outage, the nodes located in Dallas, TX, appeared to clear, leaving just the nodes located in Paris, France, exhibiting outage conditions. The drop in nodes exhibiting outage conditions appeared to coincide with a decrease in the number of downstream customers and partners impacted. The outage was cleared at around 3:45 AM EDT. Click here for an interactive view.

On September 22, Rackspace Technology, a U.S. managed cloud computing provider headquartered in San Antonio, Texas, experienced a series of outages over a period of forty-five minutes that impacted multiple downstream providers as well as Rackspace customers within multiple regions, including the U.S., and Canada. The outage, lasting a total of 18 minutes, was first observed around 10:40 PM EDT and appeared to center on Rackspace nodes located in Dallas, TX. The outage was cleared around 11:25 PM EDT. Click here for an interactive view.

Internet report for September 11-17, 2023

ThousandEyes reported 229 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of September 11-17. That’s up 24% from 184 outage events the week prior. Specific to the U.S., outages climbed from 91 to 107, an increase of 18%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages increased from 141 to 157, a climb of 11%, and in the U.S. they decreased from 69 to 67, a drop of 3%.

Public cloud network outages: Globally, cloud-provider network outages climbed from seven to 13, and in the U.S., they climbed from six to 11.

Collaboration app network outages: Globally, collaboration app network outages increased from four to nine. In the U.S., there were two collaboration-app network outages, which is the same as the week prior.

Two notable outages

On September 11, Arelion (formerly known as Telia Carrier), a global Tier 1 ISP headquartered in Stockholm, Sweden, experienced an outage that impacted customers and downstream partners across the U.S. and Canada. The disruption, lasting a total of 8 minutes, was first observed around 10:50 PM EDT and appeared to center on nodes located in Newark, NJ. Five minutes after first being observed, the number of nodes exhibiting outage conditions located in Newark, NJ, appeared to decrease. This drop also appeared to coincide with a decrease in the number of downstream customers, partners, and regions impacted. The outage was cleared around 11:00 PM EDT. Click here for an interactive view.

On September 17, Comcast Communications experienced an outage that impacted a number of downstream partners and customers across the U.S. The outage, lasting a total of 9 minutes, was first observed around 7:25 AM EDT and appeared to center on Comcast nodes located in Ashburn, VA.  Five minutes into the outage the number of nodes exhibiting outage conditions located in Ashburn, VA appeared to increase. This rise also appeared to coincide with an increase in the number of downstream partners and customers impacted. The outage was cleared around 7:35 AM EDT.  Click here for an interactive view.

Internet report for September 4-10, 2023

ThousandEyes reported 184 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of September 4-10. That’s up 12% from 164 outage events the week prior. Specific to the U.S., outages climbed from 66 to 91, an increase of 38%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages increased from 113 to 141, a climb of 25%, and in the U.S. they jumped from 44 to 69, an increase of 57%.

Public cloud network outages: Globally, cloud-provider network outages dropped by half from 14 to seven, and in the U.S., they fell from 11 to six.

Collaboration app network outages: Globally, collaboration app network outages increased from two to four. In the U.S., there were two collaboration-app network outages, compared to zero the week prior.

Two notable outages

On September 9, NTT America, a global Tier 1 ISP and subsidiary of NTT Global, experienced an outage that impacted some of its customers and downstream partners across multiple regions, including, the U.S., Hong Kong, South Korea, Indonesia, Singapore, China, Taiwan, the Philippines, and Japan. The outage, lasting around 23 minutes, was observed around 2:45 AM EDT and appeared to center on NTT nodes located in Dallas, TX. Around twenty minutes into the outage, some of the nodes located in Dallas, TX, appeared to clear. The drop in nodes and exhibiting outage conditions appeared to coincide with a decrease in the number of downstream customers and partners impacted. The outage was cleared at around 3:10 AM EDT. Click here for an interactive view.

On September 6, Cogent Communications, a U.S. based multinational transit provider, experienced an outage that impacted multiple downstream providers as well as Cogent customers across multiple regions including the U.S., India, Singapore, Spain, Mexico, Hong Kong, Australia, Indonesia, the U.K., Costa Rica, Switzerland, Canada, Egypt, Malaysia, Germany, Japan, and China. The outage, lasting a total of 57 minutes, was divided into three occurrences over a one hour and fifteen-minute period. The first occurrence was observed around 4:55 PM EDT and appeared to initially be centered on Cogent nodes located in Houston, TX. Five minutes after first being observed, nodes exhibiting outage conditions expanded to include nodes located in Phoenix, AZ, and El Paso, TX. This rise of the number of nodes exhibiting outage conditions appeared to coincide with an increase in the number of impacted regions, downstream partners, and customers. Around ten minutes after appearing to clear, the second occurrence was observed. In the second occurrence the nodes located in El Paso, TX, Houston, TX and Phoenix, AZ, were joined by Cogent nodes located in Columbus, OH, in exhibiting outage conditions. Five minutes into the second occurrence, all the nodes, except for the nodes located in Phoenix, AZ, and Columbus, OH, appeared to recover. Five minutes after appearing to clear, the third occurrence was observed, initially appearing to center on nodes located in Phoenix, AZ. Around ten minutes into the third occurrence, nodes located in Phoenix, AZ, were joined by nodes located in Los Angeles, CA, and Houston, TX, in exhibiting outage conditions. Five minutes later, nodes located in Los Angeles, CA, appeared to clear. With nodes located in Phoenix, AZ, and Houston, TX, joined by nodes located in El Paso, TX, in exhibiting outage conditions. The outage was cleared around 6:10 PM EDT. Click here for an interactive view.

Internet report for August 28- September 3, 2023

ThousandEyes reported 164 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of August 28- September 3. That’s up 27% from 129 outage events the week prior. Specific to the U.S., outages increased from 63 to 66, up 5%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages increased from 77 to 113, a climb of 47%, and in the U.S. they spiked from 26 to 44, an increase of 69%.

Public cloud network outages: Globally, cloud-provider network outages increased from 11 to 14, and in the U.S., they increased from 10 to 11.

Collaboration app network outages: Globally, collaboration app network outages decreased from 10 to two. In the U.S., there were zero collaboration-app network outages, compared to nine the week prior.

Two notable outages

On September 2, Level 3 Communications, a U.S. based Tier 1 carrier, experienced an outage that impacted multiple downstream partners and customers in multiple countries including the U.S., South Africa, Germany, Mexico, New Zealand, Argentina, Spain, Brazil, Poland, Canada, the U.K., the Netherlands, France, Australia, Egypt, Ireland, Hong Kong, India, Turkey, Singapore, and Japan. The outage, lasting a total of 64 minutes, over a two hour and 30-minute period, was divided into a series of occurrences. First observed around 12:10 PM EDT, the outage initially appeared to center on nodes located in Raleigh, NC. Thirty-five minutes into the first occurrence, nodes exhibiting outage conditions increased to include nodes located in San Francisco, CA. This increase in nodes exhibiting outage conditions also appeared to coincide with an increase in the number of downstream customers, partners and regions impacted. This first occurrence was the longest, lasting 44 minutes. Around five minutes after appearing to clear, nodes located in Raleigh, NC, once again appeared exhibiting outage conditions. This brief second occurrence, lasting around 4 minutes, was followed ten minutes later, by another 4-minute disruption, this time appearing to center on nodes located in San Francisco, CA. Around 25 minutes after appearing to clear, the nodes located in San Francisco, CA, appeared to exhibit outage conditions again. Forty minutes after the nodes located in San Francisco, CA, appeared to clear, the last occurrence of the outage was observed, appearing to center on nodes located in Raleigh, NC. The outage appeared to clear completely around 2:40 PM EDT. Click here for an interactive view.

On August 28, Time Warner Cable, a U.S. based ISP, experienced a disruption that impacted a number of customers and partners in multiple countries including the U.S., the U.K., Brazil, the Netherlands, Germany, India, Canada, Japan, France, Ireland, Australia, and Hong Kong. The outage was first observed at around 6:50 PM EDT and appeared to center on Time Warner Cable nodes located in New York, NY. The outage lasted a total of 20 minutes, with five evenly distributed occurrences, each lasting around 4 minutes each, over a period of 45 minutes. The outage was cleared at around 7:35 PM EDT. Click here for an interactive view.

Internet report for August 21-27, 2023

ThousandEyes reported 129 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of August 21-27. That’s down 12% from 147 outage events the week prior. Specific to the U.S., outages increased from 62 to 63, up 2%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages decreased from 85 to 77, down 9%, and in the U.S. they decreased from 31 to 26, down 16%.

Public cloud network outages: Globally, cloud-provider network outages decreased from 13 to 11, and in the U.S., they jumped from four to 10.

Collaboration app network outages: Globally, collaboration app network outages climbed from two to 10. In the U.S., there were nine collaboration-app network outages, up from two the week prior. 

Two notable outages

On August 24, Rackspace Technology, a U.S. managed cloud computing provider headquartered in San Antonio, Texas, experienced a series of outages over a period of fifteen minutes that impacted multiple downstream providers, as well as Rackspace customers within multiple regions including the U.S., France, Japan, Spain, South Africa, Vietnam, the U.K., Peru, Chile, Canada, Switzerland, Australia, the Netherlands, Singapore, Turkey, and Brazil. The outage, lasting a total of 8 minutes, was first observed around 1:00 AM EDT and appeared to center on Rackspace nodes located in Chicago, IL. Ten minutes after first being observed, an increased number of Rackspace nodes located in Chicago, IL, once again exhibited outage conditions, increasing the number of impacted customers and partners, before clearing at around 1:15 AM EDT. Click here for an interactive view.

On August 21, Arelion (formerly known as Telia Carrier), a global Tier 1 ISP headquartered in Stockholm, Sweden, experienced an outage that impacted customers and downstream partners across the U.S. The disruption, lasting a total of 8 minutes, was first observed around 6:10 AM EDT and appeared to center on nodes located in Newark, NJ. Five minutes after first being observed, the number of nodes exhibiting outage conditions located in Newark, NJ, appeared to decrease. This drop also appeared to coincide with a decrease in the number of downstream customers, partners and regions impacted. The outage was cleared around 6:20 AM EDT. Click here for an interactive view.

Internet report for August 14-20, 2023

ThousandEyes reported 147 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of August 14-20. That’s down 14% from 171 outage events the week prior. Specific to the U.S., outages increased from 59 to 62, up 5%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages decreased from 105 to 85, down 19%, and in the U.S. they increased from 29 to 31, up 7%.

Public cloud network outages: Globally, cloud-provider network outages decreased from 17 to 13, and in the U.S., they dropped from 14 to four.

Collaboration app network outages: Globally, collaboration app network outages decreased from six to two. In the U.S., there were two collaboration-app network outages, up from one the week prior. 

Two notable outages

On August 20, Cogent Communications, a U.S. based multinational transit provider, experienced an outage that impacted multiple downstream providers as well as Cogent customers across multiple regions including the U.S., India, and Canada. The outage, lasting a total of 15 minutes, was divided into three occurrences over a thirty-five-minute period. The first occurrence was observed around 4:00 AM EDT and appeared to initially be centered on Cogent nodes located in Boise, ID and Phoenix, AZ. Five minutes after appearing to clear, the second occurrence was observed. In the second occurrence the only nodes located in Boise, ID, appeared to exhibit outage conditions. Five minutes after appearing to clear the nodes located in Boise, ID, once again began exhibiting outage conditions. The outage was cleared around 4:35 AM EDT. Click here for an interactive view.

On August 16, Level 3 Communications, a U.S. based Tier 1 carrier, experienced an outage that impacted multiple downstream partners and customers across the U.S. The outage, lasting 9 minutes, was first observed around 1:00 PM EDT and appeared to be centered on Level 3 nodes located in Raleigh, NC. The outage was cleared around 1:10 PM EDT. Click here for an interactive view.

Internet report for August 7-13, 2023

ThousandEyes reported 171 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of August 7-13. That’s the same as the week prior. Specific to the U.S., outages decreased from 63 to 59, down 5%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages increased from 94 to 105, up 12%, and in the U.S. they decreased from 31 to 29, down 12%.

Public cloud network outages: Globally, cloud-provider network outages increased from 16 to 17, and in the U.S., they doubled from seven to 14.

Collaboration app network outages: Globally, collaboration app network outages tripled from two to six. In the U.S., there was one collaboration-app network outage, up from zero the week prior. 

Two notable outages

On August 10, NTT America, a global Tier 1 ISP and subsidiary of NTT Global, experienced an outage that impacted some of its customers and downstream partners across multiple regions including, the U.S., Singapore, Japan, Thailand, India, the Netherlands, South Korea, Malaysia, Brazil, Denmark and Germany. The outage, lasting 10 minutes, was first observed around 8:00 AM EDT and appeared to initially center on NTT nodes located in Los Angeles, CA, Singapore, Tokyo, Japan, and Vienna, Austria. Five minutes into the outage, nodes located in Los Angeles, CA, and Vienna, Austria, appeared to clear, leaving just nodes located in Tokyo, Japan, and Singapore in exhibiting outage conditions. The outage was cleared around 8:15 AM EDT. Click here for an interactive view.

On August 9, Google experienced an outage on its network that impacted access to services running on Google environments in multiple regions including the U.S. and Canada. The outage, lasting a total of 13 minutes, was divided into two occurrences spread over a thirty-minute period. The first occurrence, lasting 9 minutes, was observed around 6:15 AM EDT and appeared to be centered on Google nodes located in Los Angeles, CA, San Jose, CA and San Francisco, CA. Fifteen minutes after the first occurrence cleared, the second occurrence was observed, this time appearing to center on nodes located in Dallas, TX. The outage was cleared around 6:45 AM EDT. Click here for an interactive view.

Internet report for July 31- August 6, 2023

ThousandEyes reported 171 global network outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of July 31- August 6. That’s up from 156 the week prior, a increase of 10%. Specific to the U.S., outages increased from 60 to 63, up 5%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages decreased from 108 to 94, down 13%, and in the U.S. they decreased from 39 to 31, down 21%.

Public cloud network outages: Globally, cloud-provider network outages jumped from nine to 16, and in the U.S. decreased from eight to seven.

Collaboration app network outages: Globally, collaboration-app network outages dropped from three to two, and in the U.S. they dropped from one to zero.

Two notable outages

On August 1, Zayo Group, a U.S. based Tier 1 carrier headquartered in Boulder, Colorado, experienced an outage that impacted some of its partners and customers across the U.S. and Canada. The outage lasted around 14 minutes, was first observed around 1:40 AM EDT, and appeared to initially center on Zayo Group nodes located in Paris, France. Five minutes into the outage, the nodes located in Paris, France, appeared to clear, replaced by nodes located in Minneapolis, MN, in exhibiting outage conditions. Around 1:50 AM EDT, the nodes located in Minneapolis, MN, appeared to clear, replaced by nodes located in Seattle, WA, exhibiting outage conditions for the remainder of the outage. The outage was cleared around 1:55 AM EDT. Click here for an interactive view.

On August 3, NTT America, a global Tier 1 ISP and subsidiary of NTT Global, experienced an outage that impacted some of its customers and downstream partners across multiple regions including, the U.S., South Korea, Japan, and the U.K. The outage, lasting 19 minutes, was first observed around 7:45 PM EDT, and appeared to center on NTT nodes located in Los Angeles, CA. The outage was cleared around 8:05 PM EDT. Click here for an interactive view.

Internet report for July 24-30, 2023

ThousandEyes reported 156 global outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of July 24-30. That’s down from 186 the week prior, a decline of 16%. Specific to the U.S., outages decreased from 74 to 60, down 19%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages decreased from 118 to 108, down 8%, and in the U.S. they increased slightly from 37 to 39, up 5%.

Public cloud network outages: Globally, cloud provider-network outages decreased from 10 to nine, and in the U.S. they decreased from nine to eight.

Collaboration app network outages: Globally, collaboration-app network outages dropped from four to three, and in the U.S. they decreased from three to one.

Two notable outages

On July 24, Microsoft experienced an issue that impacted connectivity to SharePoint Online and OneDrive for Business services. First observed around 3:05 PM EDT, it appeared to impact connectivity for users globally. Users encountered a certificate error when attempting to access SharePoint Online and OneDrive due to an erroneous change in the SSL certificate that prevented the establishment of a secure connection to the services. Approximately ten minutes later, at around 3:15 PM EDT, it appeared to be replaced with a valid certificate, and SharePoint and OneDrive service reachability was restored for most users by around 3:20 PM EDT. Around 5:34 PM EDT, Microsoft announced that the outage was the result of a configuration issue and had been resolved. Click here for an interactive view.

On July 26, GTT Communications, a Tier 1 ISP headquartered in Tysons, VA, experienced an outage that impacted some of its partners and customers across multiple regions, including the U.S., Canada, the U.K. and the Republic of Korea. The outage lasted 8 minutes in total and was divided into two episodes over a 15-minute period, first observed around 8:30 AM EDT. The first period of the outage, lasting around 4 minutes, appeared to be centered on GTT nodes located in Seattle, WA, and New York, NY. Five minutes after appearing to clear, the second occurrence was observed, this time with just nodes located in New York, NY, exhibiting outage conditions. This reduction in nodes exhibiting outage conditions appeared to coincide with a decrease in the number of regions and partners impacted. The outage was cleared around 8:45 AM EDT. Click here for an interactive view.

Internet report for July 17-23, 2023

ThousandEyes reported 186 global outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of July 17-23. That’s down from 192 the week prior, a decrease of 3%. Specific to the U.S., outages decreased from 96 to 74, a decline of 23%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages increased from 115 to 118, up 3%, and in the U.S. they decreased from 60 to 37, a decline of 38%.

Public cloud network outages: Globally, cloud provider-network outages decreased from 17 to ten. In the U.S., however, cloud provider network outages increased from four to nine.

Collaboration app network outages: Globally, collaboration-app network outages increased from two to four, and in the U.S. they increased from one to three.

Two notable outages

On July 21, Cogent Communications, a U.S. based multinational transit provider, experienced an outage that impacted multiple downstream providers as well as Cogent customers across multiple regions including the U.S., Brazil, Singapore, India, Spain, the U.K., Hong Kong, Portugal, Germany, Switzerland, France, Mexico, Australia, Canada, China, Japan, Columbia, Costa Rica, Greece, Malaysia, and Luxembourg. The outage, lasting a total of 33 minutes, was divided into two occurrences over a fifty-minute period. The first occurrence was observed around 6:55 AM EDT and appeared to initially be centered on Cogent nodes located in El Paso, TX, Atlanta, GA, and Denver, CO. Five minutes after first being observed, nodes exhibiting outage conditions expanded to include nodes located in Cleveland, OH, Baltimore, MD, Miami, FL, and Phoenix, AZ. This rise of the number of nodes exhibiting outage conditions appeared to coincide with an increase in the number of impacted regions, downstream partners, and customers. Around fifteen minutes after appearing to clear, the second occurrence was observed. In the second occurrence, the nodes located in Atlanta, GA, El Paso, TX, Denver, CO, Miami, FL, and Phoenix, AZ, were joined by Cogent nodes located in Houston, TX, and Mexico City, Mexico, in exhibiting outage conditions. Fifteen minutes into the second occurrence, all the nodes, with the exception of the nodes located in El Paso, TX, appeared to recover. The outage was cleared around 7:45 AM EDT. Click here for an interactive view.

On July 21, Zayo Group, a U.S. based Tier 1 carrier headquartered in Boulder, Colorado, experienced an outage that impacted some of its partners and customers in multiple countries including the U.S., Germany, and Malaysia. The outage lasted around 8 minutes in total and was divided into two occurrences over a fifteen-minute period. First observed around 7:20 AM EDT, the outage appeared to center on Zayo Group nodes located in Phoenix, AZ. The outage was cleared around 7:35 AM EDT. Click here for an interactive view.

Internet report for July 10-16, 2023

ThousandEyes reported 192 global outage events across ISPs, cloud service provider networks, collaboration app networks and edge networks (including DNS, content delivery networks, and security as a service) during the week of July 10-16. That’s a jump from 117 the week prior, an increase of 64%. Specific to the U.S., outages spiked from 61 to 96, an increase of 57%. Here’s a breakdown by category:

ISP outages: Globally, the number of ISP outages increased from 68 to 115, up 69%, and in the U.S. they spiked from 32 to 60, up 88%.

Public cloud network outages: Globally, cloud-provider network outages increased from three to 17, and in the U.S. they increased from three to four.

Collaboration app network outages: Globally, collaboration-app network outages dropped from five to two, and in the U.S. there was one collaboration app network outage, same as the week prior. 

Two notable outages

On July 12, Hurricane Electric, a network transit provider headquartered in Fremont, CA, experienced an outage that impacted customers and downstream partners across the U.S. The outage, first observed at around 1:20 PM EDT, lasted a total of 32 minutes and was divided into three occurrences over a one-hour and 5-minute period. The first occurrence, lasting 24 minutes, appeared to center on Hurricane Electric nodes located in Dallas, TX, and Kansas City, MO. Around 1:25 PM EDT, the nodes located in Kansas City, MO, appeared to temporarily clear before once again exhibiting outage conditions again around 1:30 PM EDT. Around 1:40 PM EDT, the nodes located in Dallas, TX appeared to clear, leaving the nodes located in Kansas City, MO, exhibiting outages for the remainder of the first occurrence. Around 2:00 PM EDT, fifteen minutes after the nodes located in Kansas City, MO appeared to clear, the second occurrence was observed and appeared to center on nodes located in Dallas, TX. Five minutes after the Dallas, TX nodes cleared, the third occurrence was observed and appeared to center on nodes located in Kansas City, MO. The outage was cleared at around 2:15 PM EDT. Click here for an interactive view.

On July 14, Zayo Group, a U.S. based Tier 1 carrier headquartered in Boulder, Colorado, experienced an outage that impacted some of its partners and customers across the U.S. The outage lasted around 14 minutes, was first observed around 3:50 AM EDT, and appeared to center on Zayo Group nodes located in Seattle, WA. Five minutes after first being observed, the number of nodes located in Seattle, WA, exhibiting outage conditions appeared to increase. This rise of the number of nodes exhibiting outage conditions appeared to coincide with an increase in the number of impacted downstream partners and customers. The outage was cleared around 4:05 AM EDT. Click here for an interactive view.

Updated June 27, 2023

Global outages across all three categories last week decreased from 210 to 146, down 30% compared to the week prior. In the US they decreased from 99 to 57, down 42%. Globally, the number of ISP outages decreased from 125 to 95, down 24%, and in the US they decreased from 52 to 37, down 29%. Globally, cloud provider-network outages decreased from 12 to seven, and in the US they decreased from six to four. Globally, collaboration-app network outages dropped from 12 to three, and in the US they decreased from nine to two.

Two notable outages

On June 24, GTT Communications experienced an outage affecting partners and customers across the US, Italy, and Canada. The 14-minute outage was first observed around 1:30 a.m. EDT and appeared centered on GTT nodes in Atlanta, Georgia. The outage was cleared around 1:35 a.m. EDT. Click here for an interactive view.

On June 23, Cogent Communications, experienced an outage affecting multiple downstream providers and Cogent customers across the US and Singapore. The eight-minute outage was first observed around 2:20 a.m. EDT and appeared centered on Cogent nodes in Houston, Texas, and Oklahoma City, Oklahoma. Five minutes after being observed, the Oklahoma nodes appeared to recover. The outage was cleared around 2:30 a.m. EDT. Click here for an interactive view.

Updated June 20, 2023

Global outages across all three categories last week jumped from 130 to 210, up 62% compared to the week prior. In the US, outages jumped from 52 to 99, up 90%. Globally, the number of ISP outages increased from 82 to 125, up 52%, and in the US they increased from 28 to 52, up 86%. Globally, cloud-provider network outages increased from four to 12, and in the US increased from four to six.Globally, collaboration-app network outages increased from six to 12, and in the US they increased from three to nine.

Two notable outages

On June 13, Amazon Web Services (AWS) experienced an incident affecting services in its US-EAST-1 region. The incident, which lasted more than two hours, was first detected around 2:50 p.m. EDT and affecting the availability of applications hosted within AWS. This was confirmed by AWS, announcing via its status page that it had identified the root cause to be an issue with a subsystem responsible for capacity management for AWS Lambda, which caused errors directly for customers and indirectly through the use of other AWS services. The issue was mostly resolved by 4:40 p.m. EDT, with availability returning to normal levels for a majority of AWS services, as well as subsequently affected applications. Click here for an interactive view, and here for a detailed analysis.

On June 14, GTT Communications experienced an outage affecting partners and customers across the US and Canada. The nine-minute outage was first observed around 3:25 p.m. EDT initially centered on GTT nodes located in Seattle, Washington. Five minutes later, nodes in Chicago, Illinois also exhibited outage conditions. The outage was cleared around 3:35 PM EDT. Click here for an interactive view.

Updated June 13, 2023

Global outages across all three categories last week decreased from 176 to 130, a decline of 26% compared to the week prior. In the US, they decreased from 86 to 52, a drop of 40%. Globally, ISP outages decreased from 95 to 82, down 14%, and in the US they decreased from 44 to 28, down 36%. Globally, cloud-provider outages decreased from 10 to 4, and in the US decreased from seven to four. Globally, collaboration-app network outages decreased from three to six, and in the US dropped from zero to two.

Two notable outages

On June 5, Microsoft experienced an outage impacting Microsoft 365 services. First observed around 10:15 a.m. EDT, the outage was made up of several sustained periods of disruption spread over 27 hours. The first occurrence lasted around an hour and 39 minutes, manifesting as decreased application availability across some Microsoft 365 services for global users. Around 3 hours and 30 minutes after appearing to clear, the outage reappeared, exhibiting the same symptoms as the previous outage. This second occurrence lasted around 3 hours and 3 minutes. Services appeared to return with access completely restored around 6:30 p.m. EDT. However, eight and a half hours later, a third occurrence lasted 68 minutes and appeared to clear around 5:10 a.m. EDT (June 6), before reoccurring at 11:00 a.m. EDT for 52 minutes and again around 12:10 a.m. EDT for 24 minutes. The disruption appeared to be cleared around 1:05 p.m. EDT. Click here for a more detailed description of the outage.

On June 6, Rackspace Technology, a U.S. managed cloud computing provider headquartered in San Antonio, Texas, experienced a series of outages over a period of fifteen minutes that impacted multiple downstream providers as well as Rackspace customers within the U.S. and India. The outage, lasting a total of 8 minutes, was first observed around 8:20 p.m. EDT and appeared to center on Rackspace nodes located in Dallas, TX. Ten minutes after first being observed, a reduced number of Rackspace nodes located in Dallas, TX once again exhibited outage conditions reducing the number of impacted customers and partners, before clearing at around 8:35 p.m. EDT. Click here for an interactive view.

Updated June 5, 2023

Global outages across all three categories last week increased from 170 to 176, up 4% compared to the week prior. In the US, they increased from 78 to 86, up 10%. Globally, ISP outages decreased from 108 to 95, down 12%, and in the US they decreased from 45 to 44, down 2%. Globally, cloud-provider outages increased from nine to 10, and in the US decreased from eight to seven. Globally, collaboration-app network outages decreased from six to four, and in the US dropped from two to zero.

Two notable outages

On May 31, Cloudflare suffered an interruption affecting customers in the US, Australia, the UK, India, China, and Canada. First observed around 6:55 a.m EDT, the outage appeared centered on Cloudflare nodes located in New York, New York; Chicago, Illinois; Newark, New Jersey; Dallas, Texas; Kansas City, Missouri; London, England; and Mumbai, Pune and New Delhi, India. Five minutes into the outage, nodes in Melbourne and Brisbane, Australia; Los Angeles, California; and Montreal, Canada; were also affected. The outage lasted 19 minutes in total and was cleared around 7:15 a.m. EDT. Click here for an interactive view.

On May 31, GTT Communications experienced an outage affecting some partners and customers across the US. The nine-minute outage was first observed around 2:25 a.m. EDT and appeared centered on GTT nodes in Miami, Florida. The outage cleared around 2:35 a.m. EDT. Click here for an interactive view.

Updated May 29, 2023

Global outages across all three categories last week decreased from 174 to 170, down 2% compared to the week prior. In the US they increased from 71 to 78, up 10%. Globally, ISP outages increased from 102 to 108, up 6%, and in the US they remained the same at 45. Globally, cloud-provider network outages increased from eight to nine, and in the US increased from four to eight. Globally, collaboration-app network outages increased from two to six, and in the US they increased from zero to two.

Two notable outages

On May 25, TATA Communications (America) Inc., experienced an outage affecting downstream partners and customers in the US, Hong Kong, New Zealand, Australia, Singapore, Argentina, Chile, Mexico, Canada, Sweden, and China. First observed around 5:26 p.m. EDT, the outage lasted 32 minutes in total divided into two episodes over a 39-minute period. The first period lasted around 28 minutes and appeared centered on TATA nodes in New York, New York. Five minutes after it cleared, the outage returned. The outage was cleared around 6:05 p.m. EDT. Click here for an interactive view.

On May 24, Hurricane Electric experienced an 18-minute outage affecting customers and downstream partners in the US, Germany, Canada, the UK, France, Ireland, Sweden, Belgium, South Africa, and Australia. The outage was first observed around 3:15 p.m. EDT centered on Hurricane Electric nodes in Singapore. Five minutes later those nodes appeared to clear and those in San Jose, California exhibited outage conditions. Ten minutes after first being observed, nodes exhibiting outage conditions included those in San Jose and New York, New York. The outage was cleared around 3:35 PM EDT. Click here for an interactive view.

Updated May 22, 2023

Global outages across all three categories last week dropped from 574 to 174, down 70% compared to the week prior. In the US, they dropped from 231 to 71, down 69%. Globally, ISP outages decreased from 393 to 102, down 74%, and in the US they dropped from 187 to 45, down 76%. Globally, cloud-provider network outages dropped from 17 to eight, and in the US they dropped from 10 to four. Globally, collaboration-app network outages decreased from three to two, and in the US they remained at zero for the second week.

Two notable outages

On May 18, PCCW experienced an outage affecting customers and networks in the US, UK, Luxembourg, Hong Kong, South Africa, and Mexico. The outage lasted around 16 minutes in total and was divided into four periods over a 35-minute span. The outage was first observed around 10:40 a.m. EDT and appeared centered on PCCW infrastructure in Ashburn Virginia; Dallas, Texas; and London, England. The first period of the outage lasted around four minutes before recurring five minutes later. Fifteen minutes after first being observed, the Ashburn, Dallas, and London nodes appeared to recover. However, five minutes later, Ashburn nodes appeared to exhibit outage conditions again. The outage was cleared around 11:15 a.m. EDT. Click here for an interactive view.

On May 17, Arelion experienced an outage affecting customers and downstream partners across the US, UK, South Africa, Poland, Canada, Sweden, and Norway. The nine-minute disruption was first observed around 11:45 a.m. EDT and appeared centered on nodes in Newark, New Jersey. Five minutes later, the number of affected New Jersey nodes appeared to increase. The outage was cleared around 11:55 a.m. EDT. Click here for an interactive view.

Updated May 15, 2023

Global outages across all three categories last week increased from 310 to 574, up 85% compared to the week prior. In the US, they increased from 175 to 231, up 32%. Globally, ISP outages jumped from 200 to 393, up 97%, and in the US they increased from 128 to 187, up 46%. Globally, cloud-provider network outages remained the same at 17, and in the US they increased from 9 to ten. Globally, collaboration-app network outages decreased from five to three, and there were none in the US, down from two the week before.

Two notable outages

On May 11, TATA Communications (America) Inc., experienced an outage affecting downstream partners and customers in countries including the US, the UK, Singapore, the Netherlands, Germany, Australia, Indonesia, the Philippines, and India. The 19-minute outage was first observed around 11:45 a.m. EDT apparently centered on TATA nodes in Newark, New Jersey, and London, England. Five minutes later, nodes in Marseille, France also exhibited outage conditions. Fifteen minutes into the outage, the Marseille and London nodes appeared to clear, and nodes in Laredo, Texas; Los Angeles, California; and Paris, France; exhibited outage conditions. The outage was cleared around 1:05 p.m. EDT. Click here for an interactive view.

On May 11, GTT Communications experienced an outage affecting some partners and customers across the US and the Netherlands. The 13-minute outage was first observed around 4:05 a.m. EDT, and was divided into two episodes over a 20-minute period. The first lasted around 9 minutes, and appeared centered on GTT nodes in Seattle, Washington. Five minutes later, nodes in Amsterdam, the Netherlands, also exhibited outage conditions. Five minutes after appearing to clear, the Seattle nodes started exhibiting outage conditions again. The outage was cleared around 4:25 a.m. EDT. Click here for an interactive view.

Updated May 8, 2023

Global outages across all three categories last week increased from 213 to 310, up 46% compared to the week prior. In the US, they increased from 95 to 175, up 84%. Globally, ISP outages increased from 139 to 200, up 44%, and in the US, they increased from 60 to 128, up 113%. Globally, cloud-provider network outages increased from six to 17, and in the US they increased from five to nine. Globally, collaboration-app network outages increased from four to five, and in the US, they increased from zero to two.

Two notable outages

On May 6, Cogent Communications, experienced an outage affecting multiple downstream providers and customers in countries including the US, UK, Australia, Singapore, Japan, Argentina, Brazil, China, Thailand, Mexico, Turkey, Taiwan, Republic of Korea, Canada, South Africa, Germany, Spain, Poland, Denmark, and Luxembourg. The 23-minute outage was divided into two occurrences over a 30-minute period. The first occurrence was observed around 6:45 a.m. EDT, apparently centered on Cogent nodes in San Francisco and San Jose, California. Five minutes later, nodes in Los Angeles, California, and Seattle, Washington, also exhibited outage conditions. Five minutes after appearing to clear, the second occurrence was observed, initially centering on San Francisco, San Jose, and Los Angeles nodes. The outage was cleared around 7:15 a.m. EDT. Click here for an interactive view.

On May 2, Cox Communications, experienced a disruption affecting Cox Communications customers and partners. The outage was first observed at around 5:41 a.m. EDT apparently centered on Cox nodes in Ashburn, Virginia. Twenty minutes later, Cox nodes in Ohio were also observed exhibiting outage conditions. The 21-minute outage was cleared around 6:05 a.m. EDT. Click here for an interactive view.

Updated May 1, 2023

Global outages across all three categories last week decreased from 239 to 213, down 11% compared to the week prior. US outages decreased from 109 to 95, down 13%. Globally, ISP outages decreased from 146 to 139, down 5%, and in the US decreased from 63 to 60, down 5%. Globally, cloud-provider network outages dropped from 13 to six, and in the US from nine to five. Globally, collaboration-app network outages decreased from eight to four and in the US they remained at zero.

Two notable outages

On April 26, Qwest Communications experienced an outage affecting downstream partners and customers across the US. The 14-minute outage was first observed around 12:20 a.m. EDT, apparently centered on Qwest nodes in Atlanta, Georgia. The outage was cleared around 12:35 a.m. EDT. Click here for an interactive view.

On April 26, Microsoft experienced an outage on its network affecting some downstream partners and access to services running in Microsoft environments in multiple countries including the US, Taiwan, and India. The nine-minute outage was first observed around 1:20 a.m. EDT and appeared to initially center on Microsoft nodes in Atlanta, Georgia, and Cleveland, Ohio.  Around five minutes later the Cleveland nodes appeared to clear. The outage was cleared around 1:30 a.m.EDT. Click here for an interactive view.

Updated April 24, 2023

Global outages across all three categories last week increased from 235 to 239, up 2% compared to the week prior. In the US, outages increased from 100 to 109, up 9%. Globally, the number of ISP outages increased from 137 to 146, up 7%, and in the US they increased from 60 to 63, up 5%. Globally, cloud-provider network outages increased from 10 to 13 and in the US from eight to nine. Globally, collaboration-app network outages increased from seven to eight and in the US dropped from one to zero.

Two notable outages

On April 18, NTT America experienced an outage affecting some customers and downstream partners across the US. The 14-minute outage was first observed around 12:30 a.m. EDT and appeared centered on NTT nodes in San Jose and Los Angeles, California. Around five minutes later, the San Jose nodes appeared to recover. Ten minutes after first being observed, the Los Angeles nodes appeared to recover, too, but nodes in New York, New York, exhibited outage conditions. The outage was cleared around 12:45 a.m.EDT. Click here for an interactive view.

On April 19, Oracle experienced an outage on its network affecting Oracle customers and downstream partners interacting with Oracle Cloud services in multiple countries including the US, Japan, the United Arab Emirates, and Canada. The outage was first observed around 3:25 a.m. EDT and appeared to center on Oracle nodes in Ashburn, Virginia; Washington, DC; Toronto, Canada; Dubai, United Arab Emirates; and Tokyo, Japan. Five minutes later the Dubai and Toronto nodes appeared to recover, but nodes located in Montreal, Canada showed outage conditions. A further five minutes later Dubai nodes once again exhibited outage conditions. Fifteen minutes after first being observed, the Ashburn, Washington, Toronto, Dubai and Tokyo nodes exhibited outage conditions again. The outage lasted 19 minutes in total and was cleared around 3:45 a.m. EDT. Click here for an interactive view.

Updated April 17, 2023

Global outages across all three categories last week decreased from 242 to 235, down 3% compared to the week prior. In the US they decreased from 105 to 100, down 5%. Global ISP outages decreased from 157 to 137, down 13%, and in the US, decreased from 72 to 60, down 17%. Global cloud-provider network outages increased from nine to 10, and in the US they increased from four to eight. Global collaboration-app network outages decreased from 12 to seven, and in the US they decreased from four to one.

Two notable outages

On April 14, Cogent Communications experienced a 14-minute outage affecting downstream providers and customers in countries including the US, UK, Germany, Luxemburg, South Africa, India, Israel, Spain, France, Singapore, Ireland, Austria, Australia, Italy, and Brazil. First observed around 7:30 p.m. EDT, the outage centered on Cogent nodes in Washington, DC; London; New York; Paris; Frankfurt, Germany; Boston, Massachusetts; and Houston, Texas. Five minutes later, only Paris, Frankfurt, and Marseille, France, nodes showed outage conditions. Five minutes after that, the Paris, Frankfurt, and Marseille, nodes all appeared to clear, but those in London exhibited outage conditions. The outage cleared around 7:45 p.m. EDT. Click here for an interactive view.

On April 15, Oracle experienced an outage affecting its customers and downstream partners interacting with Oracle Cloud services in countries including the US, Canada, the United Arab Emirates, China, and Japan. The outage was first observed around 8:20 p.m. EDT and appeared centered on Oracle nodes in Ashburn, Virginia; Washington, DC; Montreal, Canada; Dubai, United Arab Emirates; and Tokyo, Japan. Fifteen minutes later, all the nodes except those in Montreal appeared to recover. The outage lasted 18 minutes and was cleared around 8:40 p.m. EDT. Click here for an interactive view.

Updated April 10, 2023

Global outages across all three categories last week decreased from 265 to 242, down 9% compared to the week prior. In the US, they increased from 95 to 105, up 11%. Globally, the number of ISP outages decreased from 170 to 157, down 8%, and in the US they increased from 62 to 72, up 16%. Globally, cloud-provider network outages remained the same as the week prior, at nine, and in the US decreased from six to four. Globally, collaboration-app network outages more than doubled, increasing from five to 12, and in the US decreased from five to four. 

Three notable outages

On April 8, Level 3 Communications, a U.S. based Tier 1 carrier, experienced an outage that impacted multiple downstream partners and customers across the U.S. and India. The outage, lasting 24 minutes, was first observed around 4:05 AM EDT and appeared to initially be centered on Level 3 nodes located in Kansas City, MO and San Francisco, CA. Fifteen minutes after first being observed, the nodes located in Kansas City appeared to clear, leaving just the nodes located in San Francisco exhibiting outage conditions. The outage was cleared around 4:30 AM EDT. Click here for an interactive view.

On April 3 and 4, Virgin Media UK, a British based ISP, experienced two outages that impacted the reachability of its network and services to the global Internet. The two outages shared similar characteristics and appeared to impact access for Virgin Media customers in the U.K. predominantly. The first incident took place between ~8:30 PM EDT and ~3:00 AM EDT, while the second began at ~11:20 AM EDT and was resolved around 1:30 PM EDT. A more detailed explanation of the outage can be found here. Click here for an interactive view.

On April 5, Cogent Communications, a U.S. based multinational transit provider, experienced an outage that impacted multiple downstream providers as well as Cogent customers in multiple regions, including the U.S., the Netherlands, Germany, and the Czech Republic. The outage, lasting a total of 19 minutes, was divided into two occurrences distributed over a thirty-minute period. The first occurrence was observed around 4:00 PM EDT and appeared to initially be centered on nodes located in Boise, ID. Five minutes after appearing to clear, the nodes located in Boise appeared to exhibit outage conditions once again. Twenty-five minutes after first being observed, the Cogent nodes exhibiting the outage conditions extended to include nodes located in Cleveland, OH. As the Cogent nodes impacted increased, so did the number of customer networks and providers impacted. The outage was cleared around 4:30 PM EDT. Click here for an interactive view.

Updated April 3, 2023

Global outages across all three categories last week increased from 181 to 265, up 46% compared to the week prior. In the US, they increased from 65 to 95, also up 46%. Globally, the number of ISP outages increased from 121 to 170, up 40%, and in the US they increased from 44 to 62, up 41%. Globally, cloud-provider network outages increased from six to nine, and in the US from one to six. Globally, collaboration-app network outages increased from one to five and in the US increased from zero to five. 

Two notable outages

On April 1, Cogent Communications experienced an outage affecting multiple downstream providers as well as Cogent customers in countries including the US, Canada, the UK, Israel, China, Mexico, Singapore, Australia, Germany, Portugal, India, Spain, Switzerland, New Zealand, Philippines, Costa Rica, Brazil, and Japan. The nine-minute outage was first observed around 1:25 a.m. EDT centered on Cogent nodes in Washington, DC; Atlanta, Georgia; and Bilbao, Spain. Five minutes later, nodes in Philadelphia, Pennsylvania; New York, New York; and El Paso and Houston, Texas; also showed outage conditions. The outage was cleared around 1:35 a.m. EDT. Click here for an interactive view.

On April 1, Oracle experienced a nine-minute network outage affecting Oracle customers and downstream partners interacting with Oracle Cloud services in multiple countries including the US, Luxembourg, Finland, Mexico, South Africa, the UK, Germany, and Canada. First observed around 2:55 a.m. EDT, the outage appeared centered on Oracle nodes in Ashburn, Virginia; Washington, DC; Phoenix; and Cleveland, Ohio. Five minutes later, the Cleveland nodes appeared to recover, along with some nodes in Ashburn, Washington, and Phoenix. This reduced the number of affected countries to the US, South Africa, Finland, the UK, and Canada. The outage was cleared around 3:05 a.m. EDT. Click here for an interactive view.

Updated March 27, 2023

Global outages across all three categories last week decreased from 247 to 181, down 27% compared to the week prior. In the US, outages decreased from 82 to 65, down 21%. Globally, the number of ISP outages decreased from 163 to 121, down 26%, while in the US they decreased from 61 to 44, down 28%. Globally, cloud-provider network outages decreased from 11 to six, and in the US they dropped from five to one. Globally, collaboration-app network outages decreased from seven to one, and in the US they dropped from four to zero.

Two notable outages

On March 23, TATA Communications (America) experienced an outage affecting downstream partners and customers in multiple countries including the US, the UK, Canada, Australia, and China. First observed around 12:05 p.m. EDT, the outage, lasted 13 minutes in total, divided into two episodes over a 20-minute period. The first, nine-minute outage initially appeared centered on TATA nodes in Los Angeles. Five minutes into the outage, nodes exhibiting outage conditions included those in San Francisco. Five minutes after the first occurrence cleared, the outage reappeared, with San Francisco and Newark, New Jersey nodes exhibiting outage conditions. The outage was cleared around 12:25 p.m. EDT. Click here for an interactive view.

On March 26, GTT Communications experienced an outage affecting some of its partners and customers across multiple countries, including the US, Spain, and the UK. The eight-minute outage was first observed around 9:30 a.m. EDT and appeared to initially center on GTT nodes  in Atlanta and Wisconsin. Five minutes after first being observed, the Wisconsin ndes appeared to clear. The outage was cleared around 9:40 a.m. EDT. Click here for an interactive view.

Updated March 20, 2023

Global outages across all three categories last week decreased from 271 to 247, down 9% compared to the week prior. In the US, outages decreased from 105 to 82, down 22%. Global ISP outages decreased from 191 to 163, down 15%, and in the US they decreased from 83 to 61, down 27%. Global cloud-provider network outages jumped from three to 11, and in the US increased from two to five. Global collaboration-app network outages increased from three to seven, and in the US from one to four.

Two notable outages

On March 14, NTT America experienced an outage affecting customers and downstream partners across multiple countries including the US, Brazil, the UK, Australia, and China. The outage, lasting a total of 18 minutes, was divided into two occurrences over a 35-minute period. Initially observed around 11:40 a.m. EDT, the first occurrence appeared to center on NTT nodes in New York and Dallas. Around five minutes after the New York and Dallas nodes appeared to clear, nodes in San Jose, California, began exhibiting outage conditions. The outage cleared around 12:205 p.m. EDT. Click here for an interactive view.

On March 18, Cogent Communications experienced a series of outages over a period of an hour and 15 minutes affecting multiple downstream providers and Cogent customers across multiple countries including the US, Canada, China, and Mexico. The outage, lasting a total of 32 minutes, was first observed around 1:30 a.m. EDT, apparently centered on Cogent nodes in Oakland, California, and lasted six minutes. The Cogent environment was stable for 10 minutes before experiencing a nine-minute outage observed on Cogent nodes in Atlanta, Georgia. Five minutes after appearing to clear, they began exhibiting outage conditions again. Fifty minutes after the initial Oakland outage was observed, the nodes appeared to exhibit outage conditions again, as did nodes  in Phoenix and El Paso, Texas. Ten minutes later, after appearing to clear, the Oakland and Phoenix nodes began exhibiting outage conditions, as did nodes in Denver, Colorado. The outage cleared around 2:45 a.m. EDT. Click here for an interactive view.

Updated March 13, 2023

Global outages in all three categories last week decreased from 337 to 271, down 20% decrease compared to the week prior. In the US they increased from 95 to 105, up 11%. Globally, ISP outages decreased from 205 to 191, down 7%, and in the US they increased from 66 to 83, up 26%. Globally, cloud-provider network outages dropped from 12 to three, and in the US they decreased from six to two. Globally, collaboration-app network outages dropped from 11 to three, and in the US they dropped from nine to one.

Two notable outages

On March 6, Twitter experienced a service disruption affecting users globally. First observed around 11:45 a.m. EST, many users were unable to access service, although the application remained reachable from a network perspective. During the incident, users were receiving 403 forbidden errors, which is indicative of a backend application issue. Around 12:19 p.m. EST, Twitter announced the disruption was caused by an internal system change that had unintentional consequences, and they were working to resolve it. The disruption lasted 60 minutes, with access restored to users around 12:50 p.m. EST. Click here for an interactive view.

On March 12, Okta experienced an issue that disrupted access to its service for a number of users globally. First observed around 11:56 a.m. EDT, connection requests appeared to return HTTP 403 forbidden status codes, indicating an application issue rather than internet or network problems connecting to Okta. The incident appeared to resolve for most users approximately 48 minutes later around 12:45 p.m. EDT. Click here for an interactive view.

Updated March 6, 2023

Global outages across all three categories last week increased from 316 to 337, up 7% from the week prior. In the US, outages increased from 62 to 95, up 53%. Globally, ISP outages decreased from 228 to 205, down 10%, while in the US they increased from 47 to 66, up 40%. Globally, cloud-provider network outages increased from 10 to 12, and in the US they increased from four to six. Globally, collaboration-app network outages jumped from two to 11, and in the US jumped from one to nine.

Two notable outages

On February 27, TATA Communications (America) Inc. experienced an outage affecting many of its downstream partners and customers in multiple countries, including the US, Germany, the UK, France, the Netherlands, India, Canada, Singapore, Switzerland, Norway, China, Mexico, Portugal, and Hong Kong. The outage lasted 53 minutes, divided into three segments over an hour and 55-minute period. The initial period of the outage was observed around 1:50 a.m. EST and appeared centered on TATA Los Angeles nodes. Five minutes after that occurrence cleared, nodes in Los Angeles and San Francisco, appeared to exhibit outage conditions and cleared after three minutes. Ten minutes later, the third occurrence was observed, affecting nodes in Los Angeles; Newark, New Jersey; and Paris. Ten minutes into the third occurrence, nodes in London and Amsterdam exhibited outage conditions. Twenty-five minutes later, Newark and Amsterdam nodes appeared to clear. The remainder of the outage was cleared around 3:05 a.m. EST. Click here for an interactive view.

On March 1, Cogent Communications experienced an outage affecting downstream providers and Cogent customers in countries including the US, China, Singapore, Taiwan, Indonesia, Turkey, the Republic of Korea, India, Germany, the UK, and Australia. The 23-minute outagewas first observed around 12:05 a.m. EST, initially centered on Cogent nodes in San Francisco and San Jose. Five minutes later, nodes in Oakland, California, Kansas City, Missouri, and Washington, DC exhibited outage conditions. Twenty minutes into the outage, the Kansas City, Washington, DC, and San Francisco nodes appeared to recover. The outage was cleared around 12:30 a.m. EST. Click here for an interactive view.

Updated Feb. 27, 2023

Global outages across all three categories last week decreased, from 339 to 316, down 7% compared to the week prior. In the US, they decreased from 76 to 62, down 18%. Globally, the number of ISP outages decreased from 258 to 228, down 12%, and in the US they decreased from 53 to 47, down 11%. Globally, cloud-provider network outages decreased from 14 to 10, and in the US from eight to four. Globally collaboration-app network outages decreased from four to two, and in the US they decreased from two to one.

Two notable outages

On February 21, Arelion experienced an outage affecting customers and downstream partners across the US. The disruption, lasting a total of 24 minutes, was first observed around 4:40 p.m. EST and appeared to center on nodes located in San Jose, California. Fifteen minutes the number of nodes appeared to reduce, and the outage was cleared around 5:05 p.m. EST. Click here for an interactive view.

On February 24, Oracle experienced an outage on its network affecting customers and downstream partners interacting with Oracle Cloud services in the US and Canada. First observed around 10 p.m. EST, it appeared initially to center on Oracle nodes in Ashburn, Virginia, and Washington, DC. Five minutes later they appeared to clear and nodes in Toronto and Montreal, Canada, exhibited outage conditions. Around 10:10 p.m. EST, the Ashburn and Washington nodes exhibeted outage conditions again. The outage lasted 17 minutes and was cleared at around 10:20 p.m. EST. Click here for an interactive view.

Updated Feb. 20, 2023

Global outages across all three categories last week increased from 301 to 339, up 13% compared to the week prior. In the US, outages increased from 73 to 76, up 4%. Global ISP outages increased from 215 to 258, up 20%, and in the US they remained the same at 53. Global cloud provider network outages increased from 10 to 14, and they increased from three to eight in the US. Global collaboration app network outages decreased from five to four, and increased from zero to two in the US.

Two notable outages

On February 18, Zayo Group experienced an outage affecting partners and customers in the US, Canada, China, Australia, and Malaysia. The 14-minute outage was first observed around 4 p.m. EST, and appeared centered on Zayo Group nodes located in Houston, Texas; New York, New York; and Newark, New Jersey. Five minutes after being observed, the New York and Newark nodes appeared to recover. The outage cleared around 4:15 p.m. EST. Click here for an interactive view.

On February 14, Hurricane Electric experienced an outage affecting customers and downstream partners in the US, Japan, Mexico, and Hong Kong. The outage, first observed at around 8:01 p.m. EST, lasted a total of 19 minutes and was divided into two occurrences over a 29-minute period. The first occurrence, lasting six minutes, appeared centered on Hurricane Electric nodes in Paris, France. Around 8:15 p.m. EST, five minutes after the Paris nodes appeared to clear, the second occurrence was observed. It lasted around 13 minutes and appeared centered on nodes in New York, New York. As the second occurrence progressed, the number of New York nodes exhibiting outage conditions dropped, which coincided with a reduction in the number of affected regions and customers. The outage was cleared around 7:35 a.m. EDT. Click here for an interactive view.

Updated Feb. 13, 2023

Global outages across all three categories last week decreased from 331 to 301, down 9% compared to the week prior. In the US, outages decreased from 117 to 73, down 38%. Globally, ISP outages decreased from 231 to 215, down 7%, and in the US they dropped from 85 to 53, down 38%. Globally, cloud-provider network outages decreased from 12 to 10, and in the US they decreased from seven to three. Globally, collaboration-app outages dropped from 10 to five, and in the US dropped from three to none. Global outages across all three categories last week decreased from 331 to 301, down 9% compared to the week prior. In the US, outages decreased from 117 to 73, down 38%. Globally, ISP outages decreased from 231 to 215, down 7%, and in the US they dropped from 85 to 53, down38%.

Two notable outages

On February 6, Microsoft experienced an outage that affected services in North America, Europe, and Asia. The outage, first observed around 10:55 p.m. EST, appeared to affect user access to Microsoft Outlook services. Microsoft confirmed that a change to some Microsoft 365 systems had contributed to the outage, and used targeted restarts to parts of their infrastructure to restore service. The bulk of the incident lasted about an hour and 39 minutes, although access issues could be seen for about four hours after that. The incident was similar to the January 25th event in terms of global reach and duration, but it did not appear to be network related, as no significant packet loss or latency or unusual routing behavior was observed. Click here for an interactive view.

On February 12, Comcast Communications experienced an outage that affected a number of downstream partners and customers across the US. The 21-minute outage was first observed around 1:30 p.m. EST and appeared to center on Comcast nodes in Denver. The outage was cleared around 1:55 p.m. EST. Click here for an interactive view.

Updated Feb. 6, 2023

Globally, outages across all three categories last week decreased compared to the week prior, from 373 to 331, down 11%. In the US they increased from 102 to 117, up 15%. Globally, the number of ISP outages decreased from 278 to 231, down 17%, and in the US they increased from 81 to 85, up 5%. Globally, cloud-provider network outages increased from 10 to 12 and increased from two to seven in the US. Globally, collaboration-app network outages increased from four to 10 and increased from one to three in the US.

Two notable outages

On January 31, Level 3 Communications experienced an outage affecting multiple downstream partners and customers in countries including the US, Canada, Brazil, the Philippines, China, Mexico, the UK, Japan, India, Singapore, Taiwan, and Australia. The outage lasted a total of 47 minutes divided into three occurrences. First observed around 4:25 a.m. EST, the outage initially appeared centered on nodes in San Jose, California. Five minutes later, nodes in Los Angeles and San Francisco, California; Chicago, Illinois; Denver, Colorado; Dallas, Texas; and São Paulo and Rio De Janeiro, Brazil, also exhibited outage conditions. Fourteen minutes after initially being observed, the outages appeared to clear. Around 10 minutes after that, San Jose, Los Angeles, Chicago, Dallas, Denver, and San Francisco nodes appeared to exhibit outage conditions again. The second occurrence lasted 19 minutes and appeared to clear around 5:10 a.m. EST. Twenty minutes after that, a third occurrence  was observed, this time initially appearing to center on nodes located in San Jose, Los Angeles, San Francisco, Rio de Janeiro, and Sao Paul. Five minutes into the third occurrence, the Rio de Janeiro and São Paulo nodes appeared to clear, leaving the San Jose, Chicago, Los Angeles, and Denver nodes exhibiting outage conditions. The outage appeared to clear completely around 5:45 a.m. EST. Click here for an interactive view.

On February 3, Okta experienced an issue that disrupted access to its service for a number of users globally. First observed around 1:10 p.m. EST, connection requests appeared to return HTTP 403 forbidden status codes, indicating an application issue rather than internet or network problems connecting to Okta. The incident appeared to resolve for most users approximately 30 minutes later at around 1:40 p.m. EST. Click here for an interactive view.

Updated Jan. 30, 2023

Global outages across all three categories last week increased from 245 to 373, up 52% over the week prior. In the US, they jumped from 57 to 102, up 79%. Globally, ISP outages increased from 187 to 278, up 49%, and in the us they increased from 42 to 81, up 93%. Globally, cloud-provider network outages increased from six to 10 outages, while in the US decreased from three to two. Globally, collaboration-app network outages increased from one to four, and in the US they remained the same at one.

Two notable outages

On January 25, Microsoft experienced a significant disruption affecting connectivity to many of its services, including Microsoft Teams, Outlook, and SharePoint. First observed around 2:05 a.m. EST, the disruption appeared to impact connectivity for users globally. Around 3:15 a.m. EST, Microsoft announced a potential issue within its network configuration. Around 4:26 a.m. EST, Microsoft announced it had rolled back the network configuration change and was monitoring the services as they recovered. The bulk of the incident lasted approximately 90 minutes, although residual connectivity issues could be seen into the following day. A more detailed analysis of the outage can be found here. Click here for an interactive view.

On January 25, Cogent Communications experienced an outage affecting downstream providers as well as Cogent customers in the US, UK, and South Africa. The outage, lasting an hour and 18 minutes, was first observed around 6:40 p.m. EST and appeared centered on Cogent nodes located in New York, New York. The last 55 minutes of the outage saw a number of the New York nodes appearing to clear and coincided with a reduction in the number of affected downstream partners, customers, and regions. The outage was cleared around 8 p.m. EST. Click here for an interactive view.

Updated Jan. 23, 2023

Global outages across all three categories last week decreased from 252 to 245, down 3% from the week prior. In the US they decreased from 68 to 57, down 16%. Globally, ISP outages decreased from 189 to 187, down less than1%, but in the US they decreased from 53 to 42, down 21%. Globally, cloud-provider outages remained the same at six, but in the US they increased from two to three. Globally, collaboration-app network outages dropped from 12 to one and decreased from three to one in the US.

Two notable outages

On January 18, Time Warner Cable experienced a disruption affecting customers and partners across the US that came in two waves over the course of an hour and 10 minutes. First observed at around 1:40 p.m. EST, the first part of the outage lasted four minutes and appeared centered on Time Warner nodes in Chicago, Illinois. Fifty-five minutes after appearing to clear, the Chicago nodes again exhibited outage conditions for nine more minutes before being cleared around 2:50 p.m. EST. Click here for an interactive view.

On January 17, Qwest Communications experienced an outage affecting downstream partners and customers across the US. The 20-minute outage was first observed around 8:25 a.m. EST and appeared centered on nodes in Atlanta, Georgia. The outage was cleared around 8:50 AM EST. Click here for an interactive view.

Updated Jan 16, 2023

Global outages across all three categories last week increased from 217 to 252, up 16%, compared to the week prior. In the US they increased from 57 to 68, up 19%. Globally, ISP outages increased from 166 to 189, up 14%, and in the US they increased from 48 to 53, up 10%. Globally, cloud-provider network outages increased from four to six, and in the US from one to two. Globally, collaboration-app network outages increased from five to 12, and in the US from zero to five.

Three notable outages

On January 10, Cogent Communications, experienced an outage affecting multiple downstream providers and Cogent customers in countries, including the US, Singapore, Germany, and Canada. The outage, lasting a total of 43 minutes, was first observed around 1:05 a.m. EST, initially centered on Cogent nodes in Seattle, Washington. Five minutes later, the Seattle nodes appeared to clear, and nodes in Oakland, California exhibited outage conditions. Fourteen minutes after first being observed, the Oakland nodes appeared to clear. Forty minutes after that, those nodes again exhibited outage conditions. Around 2:30 a.m. EST, about an hour and 15 minutes after appearing to clear, Seattle nodes again exhibited outage conditions. The outage was cleared around 2:35 a.m. EST. Click here for an interactive view.

On January 10, Hurricane Electric experienced an outage affecting customers and downstream partners across the US, the Netherlands, Germany, Belgium, the UK, Ireland, Australia, Canada, Sweden, France, and Brazil. The 17-minute outage was first observed around 5:20 a.m. EST, apparently centered Hurricane Electric nodes in New York, New York. Five minutes later the outage included nodes in San Jose, California. Twenty minutes after first being observed, nodes exhibiting outage conditions expanded to include nodes in Los Angeles and  San Jose, California. The outage was cleared around 5:40 AM EST. Click here for an interactive view.

On January 13, Spotify experienced an outage that prevented some users globally from streaming songs or using the service. First observed around 7:40 p.m. EST, the disruption lasted around an hour and 55 minutes, with the major period of the disruption lasting about an hour and 11 minutes. During the outage, Spotify service was contactable, with a number of requests either timing out or returning “service unreachable” or “unauthorized” messages, which is indicative of backend system issues. The outage was cleared around 9:35 p.m. EST when. Around 11:16 PM EST Spotify announced that all services had been restored. Click here for an interactive view.

Updated Jan. 9, 2023

Global outages across all three categories last week increased from 120 to 217, up 81% compared to the week prior. In the US, outages increased from 31 to 57, up 84%. Globally, ISP outages increased, from 76 to 166, up 118%, and in the US they increased from 18 to 48, up 167%. Globally, cloud-provider network outages dropped from eight to four, and in the US they decreased from five to one. Globally, collaboration-app network outages increased from four to five, and in the US they dropped from one to zero.

Two notable outages

On January 4, Time Warner Cable experienced a series of outages over a period of two hours and 15 minutes affecting multiple downstream providers and Time Warner Cable customers in the US and Canada. An outage was first observed around 1:50 a.m. EST and appeared to center on Time Warner Cable nodes in Dallas, Texas. The ensuing series of outages lasted a total of eight minutes and were cleared at around 4:05 a.m. EST. Click here for an interactive view.

On January 6, Qwest Communications experienced an outage affecting downstream partners and customers across the US. The 16-minute outage was first observed around 12:25 a.m. EST and appeared centered on Qwest nodes in Atlanta, Georgia. It was cleared around 12:45 a.m. EST. Click here for an interactive view.