T-Mobile Delivers Best-in-Class Customer Results in Q4, Translating into Durable and Profitable Financial Growth Driven By Widening Differentiation

Core Insights - T-Mobile US, Inc. reported industry-leading customer growth driven by a combination of the best network, best value, and best experiences [1] Customer Growth - Total postpaid net customer additions reached 2.4 million in Q4 2025 and 7.8 million for the entire year of 2025, marking the highest in the industry [1] - Postpaid phone net customer additions were 962 thousand in Q4 2025 and 3.3 million in 2025, also the best in the industry [1] - Postpaid net account additions totaled 261 thousand in Q4 2025 and 1.2 million in 2025, further solidifying T-Mobile's leading position [1]