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T-Mobile 3G Sunset (i.e 3G Network Shutdown)

Sprint and T-Mobile merged in April 2020 with a commitment to build the best 5G network – 5G for all. Since then, we’ve worked to combine Sprint’s assets with T-Mobile’s to deliver a transformative 5G network experience from big cities to small towns and places in between – and we are moving quickly to build our most advanced network ever. Now T-Mobile has the largest and fastest 5G network according to data from several third-party benchmarking companies. On top of that, T-Mobile’s 4G LTE network covers 99% of Americans.


Across the industry, wireless companies are working to retire older network technologies as part of an important progression that will greatly enhance the performance of 4G and 5G, giving customers a better wireless experience. This page provides information on T-Mobile’s efforts to retire these older technologies and help transition customers.


To ensure all customers can enjoy a more advanced 4G and 5G network, we will be retiring older network technologies to free up resources and spectrum that will help us strengthen our entire network, move all customers to more advanced technologies and bridge the Digital Divide. An additional part of this effort involves moving Sprint’s LTE spectrum to the T-Mobile network.


Moving customers who are on old networks onto modern, advanced high-speed networks means they will need to have phones and devices that can tap into the latest technologies and don’t rely on older ones. We’ll ensure that we support our customers and partners through the transition. We began sending notifications late last year, and everyone who needs to act will be given advanced notice and hear directly from T-Mobile.


Customers who move from older technologies to 4G/5G service will get:

  • Real broadband speeds that are 100 to 300 times faster

  • Enhanced public safety and 911 location accuracy capabilities that will make customers safer

Key Dates

  • As of March 31, 2022, Sprint’s older 3G (CDMA) network will be retired

  • As of June 30, 2022, Sprint’s LTE network will be retired

  • As of July 1, 2022, T-Mobile’s older 3G UMTS network will be retired

We’ve also shared that we plan to retire T-Mobile’s older GSM 2G network as well, but no date has been set. We will update this page with any additional information in the future.



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