Composer/LLM blocked by Network

I#m sometimes working in a location, wehere composer is not working due to connection fail. I would like to instruct the owner /network admin to whitelist ports/addresses so I can use their environment again.
Anybody knows how the composer connections is routed?
Any help appreciated.
Regards
Michael

*.cursor.sh 443 should be enough

Sorry, it seems that I need a litle more help. Cursor.sh is a file. I was more looking for an IP to unblock the cursor specif traffic.

cursor.sh is domain…

Hey, you need to add these addresses:

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