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
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
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
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
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.
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
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
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 significant 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
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.