IODA @ Georgia Tech

@IODA
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Internet Outage Detection & Analysis (https://ioda.live) project @ Georgia Tech's Internet Intelligence Lab (https://inetintel.org). We post about Internet outages worldwide. [email protected]
Websitehttps://ioda.live
Lab Sitehttps://inetintel.org

The IODA team and @ProjectAinita have documented a measurement-based perspective of the ongoing shutdown cutting Iran off from the global Internet. The Iranian regime has morphed a "stealth Internet blackout" from June 2025 into a new Internet.

https://ioda.inetintel.cc.gatech.edu/reports/from-war-to-sovereignty-the-normalization-of-tiered-internet-in-iran/

From War to Sovereignty: The Normalization of Tiered Internet in Iran

Iran is in it's 59th day of an ongoing shutdown to the global Internet. On February 28th, 2026, the United States and Israel launched airstrikes against Iran, and the Iranian regime once again reached for the Internet "kill switch." Similar to the January 2026 shutdown amid protests, Internet measurement data

IODA

Since Feb 28th, Iranian Internet users have not had access to the global Internet. On April 14th, the Iranian government unveiled implementation of "Internet Pro" and this access is visible in IODA's Telescope signal and the integration of Google product data.

Follow connectivity in Iran in near real-time:
https://ioda.inetintel.cc.gatech.edu/country/IR?from=1769773449&until=1776685449&view=view1

Read more about the Internet Pro from the Miaan group: https://filter.watch/english/2026/04/20/nvestigative-report-april-2026-from-the-open-internet-to-internet-sovereignty/

The damage to Amazon Web Services (AS16509) in Bahrain is visible in IODA with Active Probing dropping to 0% and BGP making a slight drop at 12:50 UTC.

Follow connectivity of AS16509 in near realtime:
https://ioda.inetintel.cc.gatech.edu/asn/16509-BH?from=1774544587&until=1775149387

The current, ongoing near total Internet shutdown in Iran, disconnecting Iranians from the global Internet, is now longer than the January 2026 shutdown during nation-wide protests. This makes the current shutdown the longest shutdown IODA has documented in Iran.

Follow connectivity in Iran in near realtime:
https://ioda.inetintel.cc.gatech.edu/country/IR?from=1766145666&until=1773921666&view=view1

Evidence of power shortage in Cuba is visible in IODA's Internet connectivity signals. The ~20% drop in Active Probing occurred earlier this month and appears similar to historic power outages visible in IODA data.

https://ioda.inetintel.cc.gatech.edu/country/CU?from=1729782277&until=1730991877

IODA data shows that the Internet in the Republic of Congo has been offline for ~12 hours amid a government shutdown during national elections.

Follow Internet connectivity in the Republic of Congo in near realtime: https://ioda.inetintel.cc.gatech.edu/country/CG?from=1773511746&until=1773598146&view=view1

Iran's connectivity to the global Internet briefly recovered on March 12 6:35 PM - 6:55 PM local time when a state-owned network (AS58224) that 32.9% of the population in Iran is connected to appeared to toggle its routing announcements off-on-off-on over a 40-minute period.

https://ioda.inetintel.cc.gatech.edu/asn/58224-IR?from=1771680827&until=1773408827&view=view1

During the short recovery, use of Mozilla's Firefox increased sharply.

https://ioda.inetintel.cc.gatech.edu/country/IR?from=1772112778&until=1773408778&view=view1

Iran is down, but IPv4 BGP routes are still 98% up (@IODA). It is necessary the routes be up to selectively authorize internet access (i.e. whitelisting).

Conversely, when we see routes go down, we may infer that those events are not govt-directed.

https://ioda.inetintel.cc.gatech.edu/country/IR?from=1771861043&until=1773070643&view=view1