Starting on April 21, 2024, we observed a large Internet outage in the country Georgia. More than half the IP blocks in large parts of the country have become unreachable from the U.S., with the problem persisting for several days so far.
The timing of this outage is consistent with a recent resurgence of protests over the Georgian “Law on Transparency of Foreign Influence”.
On November 4th, 2023, we observed a large, 4-hour Internet outage around El Paso, Texas:
News reports indicate that Spectrum had a cable cut.
Trinocular showed an outage from 8:40am to 1:05pm (mountain time zone), with an smaller initial outage starting at 7am (2023-11-04t15:40 to t20:00 UTC, possibly starting at 14:00 UTC). This outage was quite severe, affecting more than 40% of the local networks that we monitor.
Cable cuts are hard to deal with, and we’re happy that they were able to restore service relatively quickly!
Recent news reports (for example, Reuters) state that Telecom Italia had a major outage on Sunday, February 5, 2023.
We see evidence for this outage in our Internet outage detection system.
It looks like there were two relatively brief outages, one at 2023-02-05t10:49Z (11:49 local time in Italy) and a smaller one at 11:33Z (12:33 local time). Our monitoring rounds time to about 11 minutes, so the actual events may have been at slightly different times.
These outages were nation-wide, apparently affecting most of Italy. However, it looks like they “only” affected 20-30% of networks, and not all Italian ISPs. We’re happy they were able to recover so quickly.
This event shows the importance of global network monitoring.
We’ve been watching Hurricane Ian move across the Gulf of Mexico as it approached Florida. It looks like it made landfall about 3pm EDT (19:00Z).
Our Trinocular Internet outage detection showed the first residential Internet outages starting around 2:20pm EDT (18:22Z) and they go up from there. Our most recent data (as of this post at 7:45pm EDT, or 23:45Z) shows outages from about 75 minutes ago at 6:15pm EDT (22:13Z) with network outages over 50% in most of the western peninsula.
We hope folks stay inside and safe!
News reports (for example, at the Verge and Slashdot) mention a large outage in Rogers, a major Canadian telecommunications provider.
We see lots of evidence for this in our Internet outage detection system.
It’s big! Maybe 30% of Toronto and southern Ontario networks, plus a lot of outages in New Brunswick.
Ontario:
New Brunswick:
An update: Newfoundland also sees a lot of outages. Quebec looks in pretty good shape, though.
And it’s lasting a long time. It looks like it started at 5am Eastern time (2022-07-08t09:00Z), it it has lasted 9.5 hours so far!
We wish Rogers personnel and our Canadian neighbors the best.
Update at 2022-07-09t06:15Z (2:15am Eastern time): Toronto is doing much better, with “only” 10% of blocks unreachable (22808 of 21.5k in the 43.8N,79.3W 0.5 grid cell). New Brunswick and Newfoundland still look the same, with outages in about 50% of blocks.
Update at 2022-07-09t21:10Z (5:10pm Eastern time): It looks like many Rogers networks recovered at 2022-07-09t05:15Z (1:15am Eastern time). This includes all of New Brunswick and Newfoundland and most of Ontario. Trinocular has about a one-hour delay while it computes results, so I did not see this result when I checked in the prior update–I needed to wait 15 minutes more.
Erica Stutz completed her summer undergraduate research internship at ISI this summer, working with John Heidemann, Yuri Pradkin, and Xiao Song on her project “Visualizing COVID-19 Work-from-Home”.
In this project, Erica developed a new Covid-19 Work-From-Home website combinng Xiao WFH data with our existing outage website, and adding new interactive drill-down methods to display additional information to the user.
We hope Erica’s new website makes it easier to evaluate COVID-19 WFH changes, and we look forward to continue to work with Erica on this topic.
Erica worked virtually at USC/ISI in summer 2021 as part of the (ISI Research Experiences for Undergraduates. We thank Jelena Mirkovic (PI) for coordinating the second year of this great program, and NSF for support through award #2051101.
We’ve been watching the situation in Louisiana develop with Hurricane Ida with our Trinocular Internet outage detection system.
Data as of 2021-08-30t01:30Z, which is 8:30pm Sunday night August 29 in New Orleans, shows about half of the networks in the New Orleans area being unreachable (mostly IPv4 home networks). Following shortly after landfall, these outages correspond with news reports about widespread power loss. Current data is appearing on our Internet outage map.
We wish the residents of Louisiana the best and hope for a rapid recovery.