T-Mobile US Inc. announced a robust first-quarter 2026 performance, reporting earnings of $2.70 per share, which exceeded analysts' expectations by over 31%. The company generated total service revenues of $18.83 billion, driven by 217,000 postpaid net account additions and a 15% year-over-year increase in postpaid service revenue. Following this strong showing, T-Mobile raised its full-year guidance for postpaid net additions to between 950,000 and 1.05 million, positioning itself for continued growth in the competitive telecom landscape.