T-Mobile US, Inc. is a leading American wireless network operator, widely known as the 'Un-carrier' for its customer-centric approach and efforts to disrupt the wireless industry. The company provides wireless voice and data services, as well as host network for numerous mobile virtual network operators. T-Mobile is a major player in the 5G network deployment in the United States, offering extensive coverage and high-speed internet services to millions of customers nationwide. Its product lineup includes smartphones, tablets, wearable technology, and various service plans tailored for individuals, families, and businesses.
The Bellevue headquarters serves as the central hub for T-Mobile's executive leadership, strategic planning, marketing, technology development, and corporate operations.
The campus, sometimes referred to as 'Factoria Campus,' features modern office buildings designed to foster collaboration and innovation. It includes amenities like cafes, fitness centers, and open workspaces. The distinctive magenta branding is prominent throughout.
T-Mobile's HQ work culture is known for its 'Un-carrier' spirit, emphasizing customer obsession, innovation, diversity, and a fast-paced, energetic environment. Employees are encouraged to challenge the status quo and think creatively.
The Bellevue headquarters is crucial for T-Mobile's identity and operational command, driving its nationwide strategy and market positioning as a leading telecommunications provider in the U.S.
While T-Mobile US primarily operates within the United States, Puerto Rico, and the U.S. Virgin Islands, it is a subsidiary of Deutsche Telekom (DT), one of the world's leading integrated telecommunications companies headquartered in Bonn, Germany. This strategic relationship provides T-Mobile US with global backing, access to international roaming partnerships, and shared technological insights. Deutsche Telekom has a significant presence across Europe and other parts of the world, making the T-Mobile brand globally recognized and part of a larger international telecommunications ecosystem.
12920 SE 38th Street
Bellevue
Washington
USA
Address: 6220 Sprint Parkway, Overland Park, KS 66251
Serves as a key central U.S. operations center and supports nationwide network and business functions, integrating legacy Sprint operations.
Address: 3560 Dallas Pkwy, Frisco, TX 75034
Supports T-Mobile's growing presence in the southern U.S. and drives technological advancements and customer service initiatives for various business segments.
Address: 12524 Sunrise Valley Dr, Reston, VA 20196
Supports T-Mobile for Government initiatives, advanced network research, and East Coast technology and network operations.
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As of April 2025, T-Mobile' leadership includes:
T-Mobile has been backed by several prominent investors over the years, including:
Over the past year, T-Mobile experienced a significant leadership transition in its technology division with Neville Ray stepping into a strategic advisor role and Ulf Ewaldsson taking the helm as President of Technology. Other executive movements have been minimal, indicating general stability at the top leadership level.
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T-Mobile primarily uses the firstname.lastname@t-mobile.com email format for its employees. This is the most common and predictable pattern for contacting individuals within the company. While variations might exist for specific departments or roles, this format has a high success rate for general outreach.
firstname.lastname@t-mobile.com
Format
john.smith@t-mobile.com
Example
90%
Success rate
T-Mobile Newsroom • April 25, 2024
T-Mobile announced its Q1 2024 financial results, highlighting strong postpaid net account and customer additions, continued growth in high-speed internet customers, and robust financial performance, beating Wall Street expectations and reaffirming its 2024 guidance....more
Ookla • May 21, 2024
Independent testing firm Ookla's latest Speedtest Global Index report for Q1-Q2 2024 once again recognized T-Mobile for having the fastest mobile network speeds and most consistent 5G performance in the United States, underscoring its leadership in 5G technology....more
LightReading • June 10, 2024
T-Mobile announced it achieved download speeds of over 3.3 Gbps in a 5G standalone (SA) network test by aggregating four channels of mid-band spectrum. This demonstrates the ongoing evolution and potential of its 5G SA network capabilities for enhanced mobile broadband services....more
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