T-Mobile

T-Mobile US, Inc. is the largest US mobile-wireless carrier by subscriber count following the 2020 acquisition of Sprint Corporation, with approximately 130 million postpaid and prepaid subscribers and approximately $80 billion in annual revenue. The company is headquartered in Bellevue, Washington and trades on NASDAQ as TMUS with a market capitalization of approximately $245 billion as of 2026. Deutsche Telekom (the German telecommunications giant) is the controlling shareholder with approximately 51% ownership. T-Mobile employs approximately 67,000 US workers across its retail, network operations, customer-care, and corporate functions.

T-Mobile's 5G network coverage and capacity has been the differentiating story since the Sprint merger — the combined spectrum portfolio (particularly the 2.5 GHz mid-band spectrum acquired with Sprint) has given T-Mobile the broadest mid-band 5G footprint among US carriers. The company's "Magenta" branding and disruptive pricing positioning has been a meaningful market-share-gain engine over the past decade. T-Mobile's home-broadband business (T-Mobile Home Internet, leveraging fixed-wireless 5G access) has grown to approximately 6 million subscribers and has been a major broadband-market disruptor.

T-Mobile's AI strategy includes T-Priority (5G network slicing for first-responder and enterprise customers, with AI-driven resource allocation), customer-care AI (significant call-center automation deployments), network-operations AI (anomaly detection, predictive maintenance), and the strategically-important satellite-direct-to-cell partnership with SpaceX Starlink. The Starlink-T-Mobile partnership (commercial launch in 2024-2025) enables direct-to-phone connectivity from low-earth-orbit satellites to standard T-Mobile phones — a fundamental capability shift requiring AI for the dynamic-handover and quality-of-service decisions between terrestrial and satellite networks. T-Mobile has publicly committed to expanding its TMo AI assistant for customer service. The company's NVIDIA partnership for AI-RAN initiatives positions T-Mobile alongside AT&T as a pioneer in AI-augmented radio-access-network operations.