Doug Madory

Huge thanks to everyone who donated to OONI! ♥️

As part of our 2025 end-of-year fundraising campaign, we raised €45,108. We are deeply grateful for each and every contribution. 🙏

Your support helps us continue providing free software tools and open data in defense of a free and open internet. 🐙

🎉 Today marks 9 years since we launched the OONI Probe Mobile App! 🚀

Its launch led to a major increase in global OONI measurement coverage 🐙✨

Warm thanks to everyone running OONI Probe and contributing to the world’s largest open dataset on internet censorship 🙏❤️
ooni.org/install/mobile

#ooni

From Ukraine to the Cloud: Stories of IPv4 Migration This post expands on our analysis from last year that revealed that as much as 20% of IPv4 space has migrated out of Ukraine in the years following the Russian invasion in February 2022. This update r...

🚨New blog post🚨

My latest for @kentikinc updates last year's analysis on the exodus of IPv4 from Ukraine and covers the BGP routing cleanup at AT&T that removed numerous foreign routes previously originated by AS7018.

www.kentik.com/blog/from-uk...

We can see that service is more stable at lower traffic levels, but once people get online during the data things start to go haywire.

At this time, it is unclear whether the erratic nature of the blocking is the expected behavior or a symptom of a system that isn't working properly.

🚨UPDATE on ongoing internet shutdown in Iran

Internet in Iran has been partially restored since the total shutdown, but service is very unstable. Different services are blocked at different times for different users and it changes throughout the day.

#DigitalBlockoutIran #IranRevolution2026

Internet service in Iran continues to be partially restored, but greatly restricted with service blockages sometimes changing by the hour.

#DigitalBlackoutinIran #IranProtests2026

Comparing traffic to Iran from the first week of 2026 vs this past week reveals how unstable the partial restoration of internet services in Iran have been in recent days.

#IranRevolution2026 #DigitalBlackoutIran

Latest overall timeline of traffic:

Comparing traffic to Iran from the first week of 2026 vs this past week reveals how unstable the partial restoration of internet services in Iran have been in recent days.

#IranRevolution2026 #DigitalBlackoutIran

From Ukraine to the Cloud: Stories of IPv4 Migration This post expands on our analysis from last year that revealed that as much as 20% of IPv4 space has migrated out of Ukraine in the years following the Russian invasion in February 2022. This update r...

🚨New blog post🚨

My latest for @kentikinc updates last year's analysis on the exodus of IPv4 from Ukraine and covers the BGP routing cleanup at AT&T that removed numerous foreign routes previously originated by AS7018.

www.kentik.com/blog/from-uk...

Also interesting to see Cloudflare traffic to Iran getting toggled on and off.

Seems to be what is contributing to the funky graphs in @radar.cloudflare.com:

radar.cloudflare.com/ir

More jagged traffic curves for Iran:

Taking a deeper look at ASN traffic curves for the partial restoration earlier today (beginning 06:24 UTC/9:54am local). #DigitalBlackoutIran #IranianRevolution2026

They all look very jagged, like maybe a new traffic filtering system has been installed and can't keep up.

Zoomed-in view of increasing restoration:

bsky.app/profile/ioda...

As of 3:30 AM IST, January 27, IODA observed a sharp increase in Active Probing. This signal measures connectivity to the global Internet by pinging devices on Iranian networks and collecting responses in order to label networks as connected.

ioda.inetintel.cc.gatech.edu/country/IR?f...

Large uptick in traffic observed in the past few hours to Iran, but traffic levels not yet at pre-Jan-8 levels. #DigitalBlackoutIran #IranianRevolution2026

bsky.app/profile/ioda...

IODA's Telescope signal shows signs of sustained, partial recovery since ~7:30 PM Jan 24th. This is the first sign of sustained recovery of Telescope, which measures unsolicited Internet traffic rom Iran to the global Internet since the shutdown began.
ioda.inetintel.cc.gatech.edu/country/IR?f...

bsky.app/profile/rada...

UPDATE: Iran Internet shutdown

Continuing to see a small, but steady restoration for Iran as the country rolls out its internet whitelisting system to police connectivity.
#DigitalBlackoutIran #IranianRevolution2026

From our perspective, traffic is at ~25% of pre-shutdown levels (bits/sec).

‼️ Last week, #Uganda experienced a 5-day internet shutdown during its 2026 general election.

Once internet access was restored, access to WhatsApp, Facebook, Instagram, and Twitter/X was blocked.

Learn more in our latest report: explorer.ooni.org/findings/352... 🐙✨

#ooni #censorship #opendata

Iran's shutdown is now 15 days and counting. Small amounts of service have been restored in recent days.
#DigitalBlackoutIran #IranRevoIution2026

State telecom TIC (A49666) re-established many of its lost connections with outside providers, such as GBI (AS200612) at 22:02 UTC on Jan-22.

It's a great book!

Although, being a super nerd on this topic, I think I may have enjoyed an a level that few others did. 😂

Delighted that my hit 2011 book, THE INTERNET OF ELSEWHERE, got a shout out in @eldomador.bsky.social 's latest post about Iran's Internet shutdown.

bsky.app/profile/eldo...

"Other governments are watching, learning"

Doug's work on the Iran blackout is invaluable. This is the kind of thing repressive regimes watch and learn from. I talked with him yesterday on this topic: "China has been the gold standard for internet censorship. I think Iran is up there now.” www.bloomberg.com/news/newslet...

A Comparative Look at Internet Shutdowns in Iran: 2019, 2022, 2025, and 2026 On January 8th, 2026, the Iranian regime implemented an Internet shutdown amidst national protests. This shutdown is the most sophisticated and most severe in Iran’s history. IODA's longitudinal view ...

The IODA team completed a comparative analysis of the ongoing Internet shutdown in Iran to shutdowns during Bloody November in 2019, Women Life Freedom Movement in 2022, and the Israel-Iran War in 2025. Please read and reach out with any questions.

ioda.inetintel.cc.gatech.edu/reports/a-co...

From Stealth Blackout to Whitelisting: Inside the Iranian Shutdown Iran is in the midst of one of the world’s most severe communications blackouts. This post uses Kentik data to detail how this historic event unfolded, where this event lies in the context of previous...

In this post for @kentik.bsky.social, I analyze the ongoing internet shutdown in Iran — one of the most severe communications blackouts in history.

#DigitalBlackoutIran #IranRevoIution2026
www.kentik.com/blog/from-st...

U.S. funding break imperils internet freedom projects in Iran The State Department has not signed off on new funding for programs that help Iranian citizens evade internet censorship, potentially crippling a policy with bipartisan support.

Thinking of this @washingtonpost.com story from August 2025...

www.washingtonpost.com/national-sec...