This is the model for internet/Facebook access in several sub-saharan African countries and others: https://en.wikipedia.org/wiki/Free_Basics#Participants They've partnered up with large telecom operators in these regions to offer zero-rated Facebook access.

The Guardian has a couple of decent writeups about it too:

https://www.theguardian.com/world/2016/aug/01/facebook-free-...

https://www.theguardian.com/technology/2017/jul/27/facebook-...