T-Mobile US, Inc. provides wireless communications services and related products, operating through its flagship T-Mobile and Metro by T-Mobile brands and serving postpaid, prepaid and wholesale customers in the United States, Puerto Rico and the U.S. Virgin Islands. Founded in 1994 as VoiceStream Wireless PCS and headquartered in Bellevue, Washington, the company offers voice, messaging and data services; wireless devices including smartphones, wearables, tablets, home broadband gateways and accessories; equipment installment financing; device insurance and extended warranty support; fixed wireless broadband and fiber broadband services; and enterprise network solutions, including advanced 5G offerings, network slicing for first responders and advertising technology services. In addition to consumer wireless, the company operates in broadband and digital infrastructure through its fiber and fixed wireless expansion, reflecting a broader convergence strategy across mobile and home connectivity markets. Recent company changes include the April 2025 closing of the Lumos fiber joint venture with EQT, the August 2025 completion of the acquisition of substantially all of U.S. Cellular’s wireless operations and selected spectrum assets, and the April 2026 announcement of two further fiber joint ventures with Oak Hill Capital and Wren House to acquire and combine GoNetspeed, Greenlight Networks and i3 Broadband. The company has also continued to broaden its product set with newer financial and enterprise offerings, including the T-Mobile Visa credit card introduced in November 2025 and additional 5G enterprise solutions.