T-Mobile
Everything about T-Mobile: the network it runs on, eSIM support, APN settings, MMS and how to set it up.
About T-Mobile
- Country
- United States
- Type
- MNO
- Founded
- 1994
- 5G
- Yes
- eSIM
- Yes
- VoLTE
- Yes
- MCC / MNC
- 310 / 260
- Customer care
- 1-800-937-8997
Set up T-Mobile
- MMS SettingsPicture messaging and group chat values.
- eSIM ActivationScan a QR code to add or switch plans.
- International RoamingStay connected when travelling abroad. Coming soon
- Activate SIMStep-by-step SIM activation guide. Coming soon
- Port Your NumberKeep your number when switching carriers. Coming soon
More about T-Mobile
T-Mobile US started as VoiceStream Wireless, set up in 1994 inside Western Wireless and spun off in May 1999. Deutsche Telekom bought it for $35 billion in a deal that closed on June 1, 2001, and renamed it T-Mobile USA that September. It merged with MetroPCS on May 1, 2013, and completed its merger with Sprint on April 1, 2020. The Sprint name was retired that August.
T-Mobile switched on nationwide 5G on its 600 MHz spectrum on December 2, 2019, and launched standalone 5G on August 4, 2020. It shut down Sprint's CDMA network on May 31, 2022, and its own 3G network that July, and set August 3, 2026 as the date to finish switching off 2G. With 2G and 3G gone, the APN T-Mobile uses for LTE phones, fast.t-mobile.com, is the one to use. The older epc.tmobile.com was for phones without LTE. T-Mobile had about 140 million customers at the end of September 2025, and its head office is in Bellevue, Washington.
Metro by T-Mobile is T-Mobile's own prepaid brand, with its own APN, fast.metropcs.com, and Simple Mobile runs on T-Mobile too. Consumer Cellular and Lycamobile have both sold T-Mobile SIMs and still give settings for them, but Consumer Cellular has activated new lines only on AT&T since 2024, and Lycamobile now recommends its AT&T settings. Each brand uses its own APN, so match the APN to the name on your SIM.
