Measuring Iran's Internet Collapses
Iran's internet was dark, in some form, for most of 2026. Two near-total collapses — one in early January after nationwide protests and a second in late February after the start of the war — held reachability around 1% of pre-collapse levels for months. During the week of May 25 responsive IPs snapped back to ~93% of baseline, and daily TCP reachability jumped 4.6× on May 26 before ramping to near-full by June 1.
The visualization below is built on ProbeNet, our active-measurement network that runs a weekly ICMP census across global IP space. Filtering that census to addresses geolocated to Iran, week by week and ASN by ASN, is what produces the view you see here.
For the full analysis and methodology, read the companion post: Iran's internet has collapsed twice this year. Here's what we measured.
Reachable IPs in Iran during peak collapse weeks
Charting Iran's Internet Coverage in 2026
Iran outage visualization
Drag or play the timeline to see the trend across 24 weeks measured by network.
Top ASNs · share of own peak
Trend per week- 01AS58224Iran Telecommunication Company100%
- 02AS206065Tose'h Fanavari Ertebabat Pasargad Arian Co.88%
- 03AS31549Aria Shatel80%
- 04AS42337Respina Networks & Beyond98%
- 05AS50810Mobin Net Communication Company85%
- 06AS43754Asiatech Data Transmission company100%
- 07AS49100Pishgaman Toseeh Ertebatat Company86%
- 08AS202468AbrArvan CDN and IaaS91%
Nominal census
Full census envelope
The census is sampling 93% of the peak reachable surface across 462 visible ASNs (of 490 ever observed). Coverage is at nominal levels.