Choices include unlimited text, talk and data plans, shared data plans and prepaid options. Customers can get a new phone from AT&T when they purchase a plan or continue using their current one.

Ditching the big-league carriers like AT&T, T-Mobile or Verizon for a smaller provider could be the best move to slash those monthly phone bills ... competitive prepaid plans that often beat ...

If you have an older phone that doesn't support 5G connectivity, T-Mobile and AT&T's plans don't affect usage — you simply wouldn't be making the most of what each carrier offers. However ...