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After architecting the T-Mobile–Sprint merger and ascending to CEO in 2020, Sievert has grown the carrier to 120 million customers, consistently poaching subscribers from AT&T and Verizon while building America's widest 5G network.
Mike Sievert is the Vice Chairman of T-Mobile, the second-largest wireless carrier in the United States, after serving as CEO from 2020 and leading the company through its integration of Sprint and emergence as the fastest-growing wireless company in America.
Under his tenure as CEO, T-Mobile extended the 'Un-carrier' strategy and built the most extensive 5G network in the country.
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