[mehlmao]

Comcast and Optimum both offer low-cost cell phone networks. They resell service from the big three, but largely rely on WiFi calling. Phones automatically connect to the default modem/router combos.

[joecool1029]

> Comcast and Optimum both offer low-cost cell phone networks.

Plans that run on other networks (in Comcast's case it's Verizon).