The telecom giant added more high-spending "postpaid" phone subscribers than expected under a new CEO.

The company saw an uptick in postpaid and prepaid phone additions during Q1 as it improves the customer relationship and ...

T-Mobile US (NASDAQ:TMUS) on Thursday reported lower-than-expected postpaid phone additions, which cast a shadow on its forecast raise and strong top and bottom line numbers in its first-quarter ...

Shares of T-Mobile US (TMUS) pared its premarket losses after the telecom provided an additional forecast at its Capital Markets Day that helped offset a mixed fourth-quarter report, which included a ...