A view into the network shutdown in Iran, June 2025

Two IP addresses
that remained accessible:
140.82.121.6 api.github.com
216.239.38.120 google.com
Internet Connectivity for Iran (Islamic Republic Of)
https://ioda.inetintel.cc.gatech.edu/country/IR?from=1750132839&until=1750896039

https://github.com/net4people/bbs

A screenshot of a GitHub issue. net4people/bbs. Internet is completely blocked in Iran (2025-06-17 to 2025-06-26) #484
https://github.com/net4people/bbs/issues/484
I'm in iran and just got access to outside network using github app on android.

Idk how is this working but i need to replicate it on real vpn connection
#issuecomment-2985672840
We have Internet black out in Iran right now. No news from outside. Just somehow Github app works. Any one has any solution to Circumvent this blockage? I'm using RighTel right now.
#issuecomment-2986195907
Turns out api.github.com's ip (140.82.121.6) is open for connections

We got public whitelisted ip in iran before GTA 6
#issuecomment-2987484989
@wkrp only
#issuecomment-2988483200

> How about:
> curl --ssl-revoke-best-effort -H "Host: www.youtube.com" https://google.com

NO
SHOT

mg/logos/favicon_144x144.png" sizes="144x144"title>YouTube</title><link rel="alternate" media="handheld

WHAT TF IS HAPPENING?
is it because google.com and youtube.com have the same ip?
#issuecomment-2988927420

Domain fronting was not actually required.
(Only an IP filter, no SNI filter.)

Editing the system hosts file to point Google services to 216.239.38.120 would work.

Downloading files from Google Drive:

curl --connect-to ::216.239.38.120 --ssl-revoke-best-effort \
-L -o champa-client-darwin-amd64 \
"https://drive.usercontent.google.com/download?
id=1ROCBSIsnat8uDQSlOFajuW2XAbeqNNZh&export=download&confirm=t"
https://github.com/net4people/bbs/issues/485#issuecomment-2992413851

Limited success with AMP cache proxy.

Champa is a censorship circumvention proxy that tunnels through an AMP cache. Because the IP address of google.com is currently reachable, you can use that IP address to reach an AMP cache, and then from the AMP cache reach any other service.

Because of rate limits at the AMP cache, the Champa tunnel is slow, no more than 15 KB/s. It may only work for about 15 minutes at a time before rate limits take effect, and then you will need to wait several hours for it to work again. It will only work on a desktop computer where you can run custom software.
https://github.com/net4people/bbs/issues/485
With this I was able to connect to telegram for a few minutes before getting rate limited
We can use this to get small files that normally we couldn't
https://github.com/net4people/bbs/issues/485#issuecomment-2994072267