T-Mobile Overview
T-Mobile US is Deutsche Telekom's US company. After the 2020 merger with Sprint it became the second-largest wireless carrier in the United States. The Un-carrier approach dropped contracts and pushed 5G build-out.
On 5G, T-Mobile built the widest coverage in the US, using 600 MHz and the 2.5 GHz spectrum from Sprint for Sub-6 GHz. For IoT it sells connectivity to enterprises and developers on LTE-M and NB-IoT.
T-Mobile facts
- Founded: 1994 as VoiceStream in the US; Deutsche Telekom was founded in 1996
- Headquarters: Bellevue, Washington, United States
- Users: More than 132 million (2025), second in US mobile
- Network: 4G LTE, 5G NR (600 MHz, 2.5 GHz, and mmWave)
- 5G coverage: More than 95% of the US population, one of the widest 5G networks
- Parent: Deutsche Telekom AG holds about 48%
- Listing: NASDAQ: TMUS
Core Technology Advantages
Wide-area 5G
600 MHz gives the widest 5G coverage in the US, and it reaches indoors well enough for indoor IoT
Mid-Band 5G
2.5 GHz balances speed and coverage for campuses and factories
LTE-M/NB-IoT
A nationwide low-power network for sensors, with battery life up to 10 years
Network as a Service
T-Mobile for Business sells enterprise IoT projects and private network service
IoT products and services
IoT connectivity
T-Mobile IoT SIM
- Nationwide IoT dedicated SIM cards
- Flexible data plans
- Global roaming
- Zero-touch provisioning (ZTP)
Private networks
- 5G dedicated network slicing
- Mobile private network (MPN)
- Fixed wireless access
- Industrial park private network
Network standards and coverage
| Technology | Band | Coverage | Role |
|---|---|---|---|
| 5G NR, low band | 600MHz (n71) | Covers over 95% of the US population | Wide coverage, strong penetration |
| 5G NR, mid band | 2.5GHz (n41) | Major cities and suburbs | Balance of speed and coverage |
| 5G NR, high band | Millimeter wave (n260/n261) | City centres | Ultra-high speed |
| LTE-M | 700/1900MHz | Nationwide coverage | Low-power IoT |
| NB-IoT | 700MHz | Nationwide coverage | Ultra-low-rate sensors |
Industry uses
Smart Agriculture
- Remote farmland sensors
- Precision irrigation control
- Livestock tracking
- Drone inspection of fields
Asset tracking
- Fleet real-time tracking
- Cargo location monitoring
- Equipment and asset management
- Cold chain temperature recording
Manufacturing
- A 5G private network in a factory
- Machine-vision inspection
- AGV automatic guidance
- Industrial AR
Utilities
- Smart water-meter reading
- Monitoring of power equipment
- Gas-pipeline inspection
- Street-light control
Competitive Advantages
- 5G reach: The widest 5G coverage in the US, helped by low-band spectrum
- Price: IoT plans priced below the other national carriers
- Deutsche Telekom: Access to the parent's networks outside the US
- Spectrum: More mid-band and low-band after the Sprint merger
- Developers: Open APIs and support programmes
Development History and Milestones
T-Mobile US originated as VoiceStream Wireless founded in 1994, was acquired by Deutsche Telekom in 2001 for $35 billion and renamed T-Mobile USA. In 2012, after failing to merge with AT&T, T-Mobile launched the "Un-carrier" strategy, disrupting the market with initiatives such as eliminating contracts, offering unlimited data, and transparent pricing, directly competing with Verizon and AT&T, winning a large number of young users.
Key IoT Development Milestones: In 2017, T-Mobile became the first nationwide commercial NB-IoT network operator in the US, ahead of competitors; in 2020, completed the $26.2 billion merger with Sprint, becoming the second-largest mobile operator in the US, with significantly enhanced mid-band spectrum assets boosting IoT network capacity; in 2022, T-Mobile announced 5G coverage for over 320 million people nationwide, making it one of the most widely covered 5G networks in the world; in 2023, T-Mobile IoT connected devices exceeded 60 million, continuously increasing its share in the US IoT market.
IoT plans
NB-IoT, very low power
Uses: Smart meters, environmental sensors, asset tracking
Radio: Very low power, with battery life over 10 years
Price: Among the lowest connection prices for this class of IoT
LTE-M
Uses: Wearables, mobile asset tracking, fleet management
Radio: Voice over LTE, and handover while moving
Price: Several data sizes, with a discount when many devices share a plan
5G enterprise IoT
Uses: Industrial automation, HD video, and AR or VR
Radio: 600 MHz for coverage and 2.5 GHz for capacity
Price: 5G access is included, at a lower price than the other national carriers
Support
Enterprise services
- A T-Mobile for Business team
- IoT solution architects
- Technical support 24×7
- An SLA for the network
Developers
- The DevEdge platform
- Open 5G APIs
- An IoT test lab
- A programme for startups
Partners
- Channel programmes
- Work with equipment makers
- Certification for system integrators
- Discounts on large orders