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GSMT Network upgrades from U1900 Frequency to LTE

Our underlying network carrier for GSMT service is expanding 4G LTE coverage. Customers who use non-4G LTE devices need to upgrade devices to get the best performance. This will improve the data speeds and voice experience for the majority of our customers who use 4G LTE.

As a result of this upgrade, 3G services are shut down for all U1900 frequency handsets.

After the network upgrade, a customer who still uses non-4G LTE capable devices will only be able to connect to 2G Data speeds and may experience dropped calls. Customers can able to latch & use service using 2G & LTE mode only.

Please note! As of June 30, 2022, the 3G version of the GSMT network has been shut down completely. You must upgrade your phone if it does not have LTE/ VoLTE capabilities. Please click here for more information on the shutdown. 


Affected devices include, but are not limited to:

  • LG 450 and GS170 handsets
  • Apple iPhones 3G, 3GS, 4, 4S, and 5 (CDMA models)
  • Microsoft Lumia 435 and 530 smartphones
  • Alcatel One Touch Pop 7 tablet (non-LTE models)
  • Apple iPad 2 and 3 tablets
  • Samsung Galaxy Gear S, S2, and S2 Classic smartwatches

Should you wish to get a new handset, take note of the following things to look for to ensure the network compatibility.

First, look for devices that are 4G LTE capable. You’ll get the best experience on GSMT’s  4G LTE network from devices that support all three LTE signals – Band IV (also called AWS or 2100/1700 MHz), Band II (also called PCS or 1900 MHz) and Band 12 (also called 700 MHz).