T-Mobile US, Inc.: CEO History

AT&T's failed attempt to acquire T-Mobile in 2011 produced a $3 billion breakup fee and 10 MHz of spectrum that T-Mobile could not have afforded to buy in an open auction. That involuntary windfall funded the marketing budget and network investments that made the Un-carrier strategy possible, which in turn enabled the subscriber growth that justified the Sprint merger, which gave T-Mobile the 2.5 GHz mid-band spectrum that now powers the most capable 5G network in the United States. The entire trajectory of American wireless competition since 2012 flows from a regulatory rejection that AT&T and T-Mobile both expected to fail. The Bellevue, Washington company generated $83.2 billion in FY2024 revenue with 127.5 million customers and $9 billion in net income — a financial profile that would have seemed implausible in 2012 when T-Mobile was losing subscribers every quarter and widely expected to be acquired by or merged with a larger carrier. Mike Sievert has been CEO since 2020, managing the Sprint integration and the transition from a turnaround story to the story of an established carrier with market power and significant free cash flow generation. The 2.5 GHz mid-band spectrum acquired through the Sprint merger is the most consequential single asset transfer in the history of American wireless. Sprint had accumulated this spectrum through its WiMAX network investment but couldn't monetize it effectively because its network technology was incompatible with the industry's 4G LTE standard. T-Mobile had the 4G network architecture to deploy 2.5 GHz at scale, and the spectrum's propagation characteristics — strong enough to penetrate buildings, wide enough to carry high-speed data efficiently — proved ideal for 5G deployment in the dense urban and suburban markets where most wireless data consumption occurs. T-Mobile's postpaid phone churn rate of 0.86% per month in 2024 was among the lowest ever recorded by the company and compared favorably to both AT&T and Verizon — a data point that inverts the historical narrative that T-Mobile competed on price because it couldn't retain customers at quality parity. The combination of price competitiveness and low churn means T-Mobile's subscriber economics are as good or better than carriers that have charged premium prices for decades.