[unixfox]

Almost impossible task. The public IPs change every time. Usually they are on CDN that have a very large IP range.

And if they allow large IP ranges, one could try to spin up a virtual machine on the same cloud provider as the messaging platform.

[Nextgrid]

> Almost impossible task

Except if the messengers happily collude with you, which Facebook does - they have a website (can't remember the link) where network providers can get IP ranges and other information to enable "zero rating" for Facebook's properties.

[toast0]

FWIW, if my information isn't outdated, FB requires users of the mobile partner portal to be actual mobile networks; airlines are not invited. I worked on this for WhatsApp before I left in 2019, and the airline text only free messaging did not fit with the WhatsApp special pricing/zero rating offering. Afaik, FB doesn't work with airlines on these offerings; the offerings started before I left and were a surprise to me when I was still informed about all the partners (because I had to add them to mailing lists and do other integration work)

[lokar]

Or even provide proxies to run on the airline network