There has been a shift in the situation since about 2025-06-21 02:00 UTC, about 28 hours ago. The shutdown hasn’t “ended” exactly, but it’s qualitatively different now. There are still great many blocked destinations, but not as many as there were the past 3 days. For a short while after 2025-06-21 02:00, I could even some web sites hosted in Iran, which I cannot any longer (I didn’t keep track of exactly when it worked and didn’t).
Here’s the IODA graph. Notice the abrupt increase in Active Probing and Telescope signals early on 2025-06-21.
https://ioda.inetintel.cc.gatech.edu/country/IR?from=1750204812&until=1750550412
Here’s a graph of OONI measurements. Notice a gap on 2025-06-19 and 2025-06-20, and a recovery on 2025-06-21. (These charts count reported measurements: during the shutdown, OONI clients in Iran couldn’t upload their measurements.)
https://explorer.ooni.org/chart/mat?probe_cc=IR&test_name=web_connectivity&since=2025-06-10&until=2025-06-23&axis_x=measurement_start_day&time_grain=day
Not all networks are acting the same, however:
https://infosec.exchange/@dougmadory/114722381235179054
In the 4th day of #Iran’s govt-directed internet shutdown, the picture is now complicated. Most large networks are still down but some are now carrying traffic.
Back online: TCI (AS58224), Rasana (AS31549), Neda Gostar (AS39501), Pars Online (AS16322)
Still down: Irancell (AS44244), MCCI (AS197207), Rightel (AS57218)
Temporarily restored: TehranServer (AS213807), PEP (AS213732)
Partially restored: Abrarvan (AS202468), Respina (AS42337), Tebyan (AS48434), AminIDC (AS48147)
Discussion of the new situation begins at https://github.com/net4people/bbs/issues/484#issuecomment-2993296832.
The two main new observations are:
- ICMP echo (ping) apparently works, to all IP addresses. ICMP tunnels work, however one user reports ICMP tunnels being detected and blocked after a short time. There are instructions on how to use a particular ICMP tunnel called pingtunnel in [Iran] How to use pingtunnel · Issue #486 · net4people/bbs · GitHub.
- Various IP addresses are accessible, including the IP addresses of some Tor relays. One range of unblocked IP addresses is in the HostAfrica host. But the usual Tor protocol detection of the Iran firewall is still in place, so you cannot connect to them with a normal Tor client, but a patched Tor client works.
The IP addresses of api.github.com (140.82.121.6) and google.com (216.239.38.120) remain accessible as before. So participation on GitHub issues, and the existing methods of accessing Google services including Google Drive, continue to work. The AMP cache tunnel continues to work and continues to be slow and prone to temporary rate limits.