T-Mobile Coverage:
This
map shows T-Mobile's own coverage including 600 & 700
MHz
and 38 GHz
channels which require a phone compatible with these new bands.
T-Mobile has also added coverage from the Sprint network,
including Sprint's 5G coverage, available with a compatible
device.

US Cellular 4G LTE
Coverage:

Verizon
Wireless 4G LTE Coverage: