Doug Madory
@eldomador.bsky.social
Internet Analysis (BGP/NetFlow) at @kentik.bsky.social (formerly of Dyn Research and Renesys).
https://www.linkedin.com/in/dougmadory/
https://www.linkedin.com/in/dougmadory/
Pinned
Doug Madory
@eldomador.bsky.social
· Jan 5
Keeping Syria connected during war | SyriaUntold | حكاية ما انحكت
A Syria Telecom engineer's account told his story during the war; what was behind internet shut downs? And what happened during students’ exams?
syriauntold.com
Thrilled to share my latest article: "Keeping Syria connected during civil war."
A compelling, years-in-the-making story of "Mahmoud," a Syria Telecom network engineer who was on the front lines of the conflict—literally—to keep the country's internet running.
syriauntold.com/2025/12/27/k...
A compelling, years-in-the-making story of "Mahmoud," a Syria Telecom network engineer who was on the front lines of the conflict—literally—to keep the country's internet running.
syriauntold.com/2025/12/27/k...
Reposted by Doug Madory
Internet in Iran continues to be limited following a partial restoration.
Since Jan-27, we're seeing traffic volumes at 58% of what they were prior to the Jan-8 shutdown. During the day, traffic curves appear erratic, indicating disconnections.
#DigitalBlackoutIran #IranRevolution2026
Since Jan-27, we're seeing traffic volumes at 58% of what they were prior to the Jan-8 shutdown. During the day, traffic curves appear erratic, indicating disconnections.
#DigitalBlackoutIran #IranRevolution2026
February 16, 2026 at 3:58 PM
Internet in Iran continues to be limited following a partial restoration.
Since Jan-27, we're seeing traffic volumes at 58% of what they were prior to the Jan-8 shutdown. During the day, traffic curves appear erratic, indicating disconnections.
#DigitalBlackoutIran #IranRevolution2026
Since Jan-27, we're seeing traffic volumes at 58% of what they were prior to the Jan-8 shutdown. During the day, traffic curves appear erratic, indicating disconnections.
#DigitalBlackoutIran #IranRevolution2026
Internet in Iran continues to be limited following a partial restoration.
Since Jan-27, we're seeing traffic volumes at 58% of what they were prior to the Jan-8 shutdown. During the day, traffic curves appear erratic, indicating disconnections.
#DigitalBlackoutIran #IranRevolution2026
Since Jan-27, we're seeing traffic volumes at 58% of what they were prior to the Jan-8 shutdown. During the day, traffic curves appear erratic, indicating disconnections.
#DigitalBlackoutIran #IranRevolution2026
February 16, 2026 at 3:58 PM
Internet in Iran continues to be limited following a partial restoration.
Since Jan-27, we're seeing traffic volumes at 58% of what they were prior to the Jan-8 shutdown. During the day, traffic curves appear erratic, indicating disconnections.
#DigitalBlackoutIran #IranRevolution2026
Since Jan-27, we're seeing traffic volumes at 58% of what they were prior to the Jan-8 shutdown. During the day, traffic curves appear erratic, indicating disconnections.
#DigitalBlackoutIran #IranRevolution2026
Reposted by 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. 🐙
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. 🐙
February 11, 2026 at 7:32 PM
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. 🐙
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. 🐙
Reposted by Doug Madory
🎉 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
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
February 9, 2026 at 6:02 PM
🎉 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
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
Reposted by Doug Madory
🚨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...
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...
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...
www.kentik.com
January 28, 2026 at 9:45 PM
🚨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...
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...
🚨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 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
February 3, 2026 at 4:49 PM
🚨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 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
#DigitalBlackoutinIran #IranProtests2026
January 30, 2026 at 12:53 PM
Internet service in Iran continues to be partially restored, but greatly restricted with service blockages sometimes changing by the hour.
#DigitalBlackoutinIran #IranProtests2026
#DigitalBlackoutinIran #IranProtests2026
Reposted by Doug Madory
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
#IranRevolution2026 #DigitalBlackoutIran
January 28, 2026 at 10:37 PM
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
#IranRevolution2026 #DigitalBlackoutIran
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
#IranRevolution2026 #DigitalBlackoutIran
January 28, 2026 at 10:37 PM
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
#IranRevolution2026 #DigitalBlackoutIran
🚨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...
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...
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...
www.kentik.com
January 28, 2026 at 9:45 PM
🚨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...
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...
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.
They all look very jagged, like maybe a new traffic filtering system has been installed and can't keep up.
January 27, 2026 at 11:00 PM
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.
They all look very jagged, like maybe a new traffic filtering system has been installed and can't keep up.
Reposted by Doug Madory
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...
ioda.inetintel.cc.gatech.edu/country/IR?f...
January 27, 2026 at 1:34 PM
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...
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
January 27, 2026 at 1:12 PM
Large uptick in traffic observed in the past few hours to Iran, but traffic levels not yet at pre-Jan-8 levels. #DigitalBlackoutIran #IranianRevolution2026
Reposted by Doug Madory
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...
ioda.inetintel.cc.gatech.edu/country/IR?f...
January 26, 2026 at 3:12 PM
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...
ioda.inetintel.cc.gatech.edu/country/IR?f...
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).
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).
January 26, 2026 at 2:25 PM
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).
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).
Reposted by Doug Madory
‼️ 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
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
January 23, 2026 at 7:34 PM
‼️ 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
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.
#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.
January 23, 2026 at 4:48 PM
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.
#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.
Reposted by Doug Madory
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...
bsky.app/profile/eldo...
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...
#DigitalBlackoutIran #IranRevoIution2026
www.kentik.com/blog/from-st...
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...
www.kentik.com
January 22, 2026 at 8:52 PM
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...
bsky.app/profile/eldo...
Reposted by Doug Madory
"Other governments are watching, learning"
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...
#DigitalBlackoutIran #IranRevoIution2026
www.kentik.com/blog/from-st...
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...
www.kentik.com
January 22, 2026 at 2:07 AM
"Other governments are watching, learning"
Reposted by Doug Madory
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...
January 21, 2026 at 11:11 PM
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...
Reposted by Doug Madory
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...
ioda.inetintel.cc.gatech.edu/reports/a-co...
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 ...
ioda.inetintel.cc.gatech.edu
January 21, 2026 at 7:40 PM
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...
ioda.inetintel.cc.gatech.edu/reports/a-co...
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...
#DigitalBlackoutIran #IranRevoIution2026
www.kentik.com/blog/from-st...
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...
www.kentik.com
January 21, 2026 at 7:00 PM
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...
#DigitalBlackoutIran #IranRevoIution2026
www.kentik.com/blog/from-st...
Thinking of this @washingtonpost.com story from August 2025...
www.washingtonpost.com/national-sec...
www.washingtonpost.com/national-sec...
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.
www.washingtonpost.com
January 20, 2026 at 9:54 PM
Thinking of this @washingtonpost.com story from August 2025...
www.washingtonpost.com/national-sec...
www.washingtonpost.com/national-sec...
As of Jan-13, The geo file of Starlink now includes 17 entries for Bolivia.
The Andean country had previously resisted giving the LEO satellite internet operator a license to operate, however, a new president, elected in Oct, signed a decree to authorize service.
apnews.com/article/boli...
The Andean country had previously resisted giving the LEO satellite internet operator a license to operate, however, a new president, elected in Oct, signed a decree to authorize service.
apnews.com/article/boli...
January 19, 2026 at 8:59 PM
As of Jan-13, The geo file of Starlink now includes 17 entries for Bolivia.
The Andean country had previously resisted giving the LEO satellite internet operator a license to operate, however, a new president, elected in Oct, signed a decree to authorize service.
apnews.com/article/boli...
The Andean country had previously resisted giving the LEO satellite internet operator a license to operate, however, a new president, elected in Oct, signed a decree to authorize service.
apnews.com/article/boli...
Reposted by Doug Madory
Rostelecom first became a transit provider for TIC way back in January 2010. It was AS12880 back in those days and my colleague (Renesys founder) @jimcowie.bsky.social wrote up the development here (thank you Internet Archive!):
web.archive.org/web/20100214...
web.archive.org/web/20100214...
web.archive.org
January 19, 2026 at 6:42 PM
Rostelecom first became a transit provider for TIC way back in January 2010. It was AS12880 back in those days and my colleague (Renesys founder) @jimcowie.bsky.social wrote up the development here (thank you Internet Archive!):
web.archive.org/web/20100214...
web.archive.org/web/20100214...