The death knell for 4G networks may be ringing soon as T-Mobile is reportedly going to phase out 4G coverage starting in 2026, making LTE-only devices obsolete.

According to a leaked document discovered by The Mobile Report, the network carrier is set to transition away from 4G next year, which will include ending support for 5G non-standalone (5G NSA) devices as well.

The older 2G and 3G networks started shutting down in 2022, with T-Mobile only just ending its 2G network in February of this year. Doing away with the older networks opened up frequencies for 4G and 5G migration, improving the reach of the newer networks.

Per the document, T-Mobile has already started dismantling its 4G network with plans to use those frequencies for 5G over the next two years to support 5G Standalone (5

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