Login ip address issue

My question:
what are the ip’s i need to whitelist to use collection properly

Details (like screenshots):
I’m not new to postman but never used post in such a close environment as in current company. I’m unable to sign in .I have come to conclusion this a network issue. can make a request to network team to allow but they asking all IP’s i need hence asking here.

I’ve already tried:

I used a other system with no network restriction and it work fine.