Depends on the type of MVNO. Branded resellers really can't do shit to stop their parent provider from doing bullshit, but Comcast is likely going to fall into the Full MVNO category and tunnel all the traffic into their network: https://en.wikipedia.org/wiki/Mobile_virtual_network_operato...

VPN? Sign a contract with one of the providers to not track the data? Start thinking like an entrepreneur! There is an unmet need, go meet the need and work through the problems.

...or point-to-point IP connection, so the device count not reach the general internet, just your white-listed endpoint?

I just want a pipe.

> I just want a pipe.

Mobile providers don't work like that though. Even when roaming international, there is a tunnel back to your home provider. See: https://en.wikipedia.org/wiki/GPRS_Tunnelling_Protocol

This is amusing because you can get unfiltered internet roaming in China if you bring a foreign sim, apparently