Iran has extended a near-total internet shutdown into a fourth day amid nationwide protests, cutting off fixed-line connectivity, mobile data, and even calls for much of the country’s roughly 90 million residents. Internet monitoring organizations including Cloudflare, NetBlocks, and Kentik reported sustained outage conditions consistent with a centrally executed “kill switch,” with NetBlocks describing it as the fastest protest-linked shutdown they have observed in Iran, following earlier attempts at more localized blackouts in restive cities.
In addition to terrestrial networks, monitoring data and reporting indicate Iranian authorities have also targeted satellite connectivity, including Starlink, with claims that tens of thousands of receivers inside Iran have been disrupted—potentially through military-grade jamming technology possibly sourced from Russia or China. Reporting also indicates the government may move toward a whitelist model allowing only limited, approved sites, suggesting the blackout could persist; separately, U.S. President Donald Trump said he would speak with Elon Musk about restoring internet access via Starlink.

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Researchers told TechCrunch that the nationwide outage had exceeded 170 hours, making it one of Iran’s longest and most comprehensive shutdowns. Although some official and economic sectors regained limited connectivity, most of the population remained offline.
Iranian authorities reportedly conducted physical raids, including in western Tehran, to confiscate Starlink equipment and criminalized possession of the terminals. Officials also jammed neighborhoods where devices were believed to be in use.
Starlink and affiliated support efforts reportedly introduced technical countermeasures against Iranian interference, reducing packet loss from initial levels of roughly 30–80% to about 10% in some cases. Service remained unstable as both sides continued a cat-and-mouse struggle.
NasNet said that after discussions with Starlink and U.S. authorities, it had arranged free Starlink service for users in Iran who already possessed terminals. The group also issued operational security guidance to help users avoid detection.
U.S. President Donald Trump said he would speak with Elon Musk about helping restore internet access for people in Iran, including via Starlink. U.S. reporting also said the administration was considering broader responses to the crisis.
By January 12, monitoring groups said Iran's near-total shutdown had continued into a fourth day, with officials indicating restoration would occur only in coordination with security authorities. The blackout severely limited reporting on clashes and casualties during the protests.
Some government-aligned services and select networks, including state media, approved Telegram channels, universities, and certain official entities, began coming back online under a progressive whitelist model. Most of the public remained offline while approved sectors regained limited access.
As the national blackout continued, Iranian authorities reportedly used "military-grade" radio-frequency jamming against Starlink, disrupting service and particularly degrading uploads. Researchers said the interference affected a large share of Starlink traffic but did not fully eliminate access.
Cloudflare observed a short-lived restoration of internet traffic from Iran before the blackout resumed. No significant improvement was reported after the following day.
Iran cut fixed-line, mobile internet, and phone connectivity nationwide, leaving the country largely disconnected from the global internet. Monitoring data from Cloudflare, NetBlocks, and Kentik showed external connectivity falling to around 1% of normal levels and at times effectively to zero.
Internet monitors reported that Iranian authorities first attempted localized connectivity disruptions before escalating to a nationwide shutdown during economy-focused anti-government protests. NetBlocks later described the response as Iran’s fastest protest-related "kill-switch" deployment to date.
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