- [Support](https://www.t-mobile.com/support) - [Get started](#) - [New to T-Mobile?](https://www.t-mobile.com/support/new-to-tmobile) [Switching is easy](https://www.t-mobile.com/support/new-to-tmobile/family-freedom) [Set up your device](https://www.t-mobile.com/support/new-to-tmobile/device) [Using the app](https://www.t-mobile.com/support/plans-features/t-mobile-app) [All get started topics](https://www.t-mobile.com/support/new-to-tmobile) - [Account resources](#) - [Ways to pay your bill](https://www.t-mobile.com/support/account/pay-your-bill) [All about your bill](https://www.t-mobile.com/support/account/whats-impacting-your-bill) [Line permissions](https://www.t-mobile.com/support/account/set-online-permissions) [Your T-Mobile ID](https://www.t-mobile.com/support/account/set-up-and-manage-your-t-mobile-id) [Your PIN/Passcode](https://www.t-mobile.com/support/account/update-your-customer-pinpasscode) [All account resources topics](https://www.t-mobile.com/support/account) - [Network & roaming](#) - [T-Mobile network](https://www.t-mobile.com/support/coverage/t-mobile-network) [In-flight texting and Wi-Fi](https://www.t-mobile.com/support/coverage/t-mobile-in-flight-texting-and-wi-fi) [Wi-Fi Calling](https://www.t-mobile.com/support/coverage/wi-fi-calling-from-t-mobile) [International roaming](https://www.t-mobile.com/support/coverage/international-roaming-services) [Mobile Without Borders](https://www.t-mobile.com/support/coverage/mobile-without-borders) [All network & roaming topics](https://www.t-mobile.com/support/coverage) - [Plans support](#) - [Find the right plan](https://www.t-mobile.com/support/plans-features/find-the-right-plan-for-you) [Netflix on Us](https://www.t-mobile.com/support/plans-features/netflix-on-us) [HotSpot plans](https://www.t-mobile.com/support/plans-features/mobile-internet-plans-for-hotspots) [Voicemail](https://www.t-mobile.com/support/plans-features/voicemail) [Use Mobile HotSpot](https://www.t-mobile.com/support/plans-features/smartphone-mobile-hotspot-wi-fi-sharing--tethering) [All plans support topics](https://www.t-mobile.com/support/plans-features) - [Device assistance](#) - [Tutorials](https://www.t-mobile.com/support/tutorials) [Troubleshooting](https://www.t-mobile.com/support/phones-tablets-devices/troubleshooting) [Unlock your device](https://www.t-mobile.com/support/devices/unlock-your-mobile-wireless-device) [Protect your device](https://www.t-mobile.com/support/devices/protectionandlt360andgt-and-device-protection) [SIM card & eSIM](https://www.t-mobile.com/support/devices/sim-esim) [All device assistance topics](https://www.t-mobile.com/support/phones-tablets-devices) - [Business support](#) - [Get T-Mobile for Business](https://www.t-mobile.com/support/business/new-to-business) [Billing and payments](https://www.t-mobile.com/support/business/billing) [Manage your account](https://www.t-mobile.com/support/business/account) [Orders and shopping](https://www.t-mobile.com/support/business/orders-shopping) [Account Hub registration](https://www.t-mobile.com/support/business/account-hub-registration) [All business support topics](https://www.t-mobile.com/support/business) [SUPPORT](https://www.t-mobile.com/support) - [Get started](#) - [New to T-Mobile?](https://www.t-mobile.com/support/new-to-tmobile) - [Switching is easy](https://www.t-mobile.com/support/new-to-tmobile/family-freedom) - [Set up your device](https://www.t-mobile.com/support/new-to-tmobile/device) - [Using the app](https://www.t-mobile.com/support/plans-features/t-mobile-app) - [All get started topics](https://www.t-mobile.com/support/new-to-tmobile) - [Account resources](#) - [Ways to pay your bill](https://www.t-mobile.com/support/account/pay-your-bill) - [All about your bill](https://www.t-mobile.com/support/account/whats-impacting-your-bill) - [Line permissions](https://www.t-mobile.com/support/account/set-online-permissions) - [Your T-Mobile ID](https://www.t-mobile.com/support/account/set-up-and-manage-your-t-mobile-id) - [Your PIN/Passcode](https://www.t-mobile.com/support/account/update-your-customer-pinpasscode) - [All account resources topics](https://www.t-mobile.com/support/account) - [Network & roaming](#) - [T-Mobile network](https://www.t-mobile.com/support/coverage/t-mobile-network) - [In-flight texting and Wi-Fi](https://www.t-mobile.com/support/coverage/t-mobile-in-flight-texting-and-wi-fi) - [Wi-Fi Calling](https://www.t-mobile.com/support/coverage/wi-fi-calling-from-t-mobile) - [International roaming](https://www.t-mobile.com/support/coverage/international-roaming-services) - [Mobile Without Borders](https://www.t-mobile.com/support/coverage/mobile-without-borders) - [All network & roaming topics](https://www.t-mobile.com/support/coverage) - [Plans support](#) - [Find the right plan](https://www.t-mobile.com/support/plans-features/find-the-right-plan-for-you) - [Netflix on Us](https://www.t-mobile.com/support/plans-features/netflix-on-us) - [HotSpot plans](https://www.t-mobile.com/support/plans-features/mobile-internet-plans-for-hotspots) - [Voicemail](https://www.t-mobile.com/support/plans-features/voicemail) - [Use Mobile HotSpot](https://www.t-mobile.com/support/plans-features/smartphone-mobile-hotspot-wi-fi-sharing--tethering) - [All plans support topics](https://www.t-mobile.com/support/plans-features) - [Device assistance](#) - [Tutorials](https://www.t-mobile.com/support/tutorials) - [Troubleshooting](https://www.t-mobile.com/support/phones-tablets-devices/troubleshooting) - [Unlock your device](https://www.t-mobile.com/support/devices/unlock-your-mobile-wireless-device) - [Protect your device](https://www.t-mobile.com/support/devices/protectionandlt360andgt-and-device-protection) - [SIM card & eSIM](https://www.t-mobile.com/support/devices/sim-esim) - [All device assistance topics](https://www.t-mobile.com/support/phones-tablets-devices) - [Business support](#) - [Get T-Mobile for Business](https://www.t-mobile.com/support/business/new-to-business) - [Billing and payments](https://www.t-mobile.com/support/business/billing) - [Manage your account](https://www.t-mobile.com/support/business/account) - [Orders and shopping](https://www.t-mobile.com/support/business/orders-shopping) - [Account Hub registration](https://www.t-mobile.com/support/business/account-hub-registration) - [All business support topics](https://www.t-mobile.com/support/business) [Support](https://www.t-mobile.com/support/) [Coverage](https://www.t-mobile.com/support/coverage) # T-Mobile Network Evolution 0 Added! [](https://www.t-mobile.com) ### Manage Links Click any [available links](https://www.t-mobile.com) to add. Click any [added links](https://www.t-mobile.com) to remove. Links with [no highlight](https://www.t-mobile.com) can't be sent. Done (0 Links) Across the industry, wireless companies have retired older network technologies as part of an important progression to ensure all customers can enjoy a better network experience. This page provides information on T-Mobile’s efforts to retire these older technologies and help transition customers. Moving customers who are on old networks onto modern, advanced high-speed networks like 5G means they will need to have phones and devices that can tap into the latest technologies. We’ll ensure that we support our customers and partners through the transition. We regularly send notifications and customers who need to take action will receive advanced notice.  ## Customers who move from older technologies will get - Faster speeds and more reliable coverage on America's largest 5G network. - Access to newer capabilities, including T-Satellite on compatible devices and plans - Enhanced public safety and 911 location accuracy capabilities that will make customers safer [Learn more about our network](https://www.t-mobile.com/coverage/network) [](https://www.t-mobile.com) ## Network security T-Mobile, along with other wireless providers, follows network security standards set by the National Institute of Standards and Technology (NIST). An older standard will retire on April 1, 2026 and will be automatically replaced with the most current version. Most newer devices already meet current network security standards and will not be impacted. However, some older devices, typically introduced in 2017 or earlier, may still support voice calls and basic texting but could experience service disruptions, including: - Android & iOS: Inability to manage features like call forwarding, call waiting, caller ID, or fixed dialing numbers via device settings - Android only: Issues sending large multimedia messages, such as photos or videos Proactively upgrading your phone will help ensure uninterrupted service and full access to supported features. ## Key Dates - As of August 3, 2026, T-Mobile's 2G GSM network will be retired. - As of April 1, 2026, older network security standards have been retired and replaced with the most current version. - As of July 1, 2022, T-Mobile’s older 3G UMTS network has been retired. - As of June 30, 2022, Sprint’s LTE network has been retired. - As of March 31, 2022, Sprint’s older 3G (CDMA) network has been retired. ## Have questions? ### Personal Account If you have questions or need assistance, we’re here to help. - Talk to us: 611 from your device or 1-800-937-8997 if calling from another number - Assurance Wireless customers can call 611 or 1-888-321-5880. ### Business Account If you are a T-Mobile for Business customer with an active 2G GSM line, our dedicated Business Care team is standing by to help make this transition as seamless as possible for your business. When you reach out, our experts will help walk you through the options available based on your specific account and line needs, including device upgrade options to help you take full advantage of our advanced 5G network.   - Ready to take action? Call Business Care at 1-800-375-1126 #### Full terms Capable device required for 5G; coverage not available in some areas. Some uses may require certain plan or feature; see T-Mobile.com.” Texting & select satellite-ready apps with compatible device in most outdoor areas in the U.S. where you can see the sky. Satellite service, including text to 911, may be delayed, limited, or unavailable. Included with Experience Beyond or $10/mo.; auto renews monthly. Cancel anytime in T-Life App. * * * Was this helpful? * * * ## Can't find what you're looking for? - [Contact Us](https://www.t-mobile.com/contact-us) - [Ask our community](https://www.t-mobile.com/community/)