The carrier added 324,000 mobile-phone customers in the first three months of the year, beating Wall Street projections.

AT&T shares fell 2.8% during Friday's session. Investors reacted to the T-Mobile selloff with potential concern for the ...

The smartphone ecosystem has avoided the biggest brunt of President Trump's tariffs, for now. But if that for now ends, major ...

Summary: The wireless industry is facing slower growth and rising costs, but instead of raising prices, carriers like ...

T-Mobile US Inc. reported better-than-expected sales and profit for the first quarter even as new mobile-phone subscribers ...

T-Mobile added fewer wireless subscribers than Wall Street expected in the first quarter as rivals dialed up promotions in a ...