T-Mobile US, Inc. (TMUS)

T-Mobile US operates as America's second-largest wireless communications services provider, positioning itself as "America's supercharged Un-carrier" that disrupts the industry by eliminating customer pain points such as annual service contracts, overage fees, and roaming charges. The company operates America's largest, fastest, and most reliable 5G network, built on a "layer cake" spectrum strategy combining low-band, mid-band, and mmWave spectrum licenses, with Ultra Capacity 5G covering 263 million people and total 5G coverage reaching 325 million people (98% of Americans) as of December 31, 2022. As of that date, T-Mobile served 113.6 million postpaid and prepaid customers, generating service revenue primarily from postpaid customers (75%), prepaid customers (16%), and wholesale/other services (9%), including Machine-to-Machine and Mobile Virtual Network Operator partners.

Products and services include mobile wireless plans (notably Magenta Max and Essentials), smartphones, wearables, tablets, and home broadband routers through equipment installment plans or leasing; a High Speed Internet fixed wireless product leveraging excess 5G network capacity; and complementary offerings such as device protection, financial services, advertising, and (until its pending divestiture announced in September 2022) wireline communication services. The company operates under its flagship T-Mobile and Metro by T-Mobile brands, distributing through owned retail stores, websites, the T-Mobile app, customer care channels, national retailers, and third-party dealers, and also serves business customers under the T-Mobile for Business brand. Substantially all revenue is earned in the United States, including Puerto Rico and the U.S. Virgin Islands.

Its primary competitors include national carriers AT&T and Verizon, along with regional carriers, cable-based MVNOs like Comcast, Charter, and Altice, and DISH. The company's network integration following its merger with Sprint remains ongoing, with continued spectrum acquisitions (including Auction 110 and Auction 108 wins, and additional 600 MHz license purchases) aimed at expanding capacity and coverage. As of December 31, 2022, T-Mobile employed approximately 71,000 full-time and part-time employees across network, retail, administrative, and customer support functions, with headquarters in Bellevue, Washington, and Overland Park, Kansas, and maintains programs focused on employee benefits, training, diversity/equity/inclusion initiatives, and environmental sustainability, including a science-based net-zero emissions target for 2040.