You may get better coverage and internet speed on T-Mobile thanks to the carrier's new Extended Range LTE service, a first step in the carrier's efforts to roll out next-generation 5G networks.  

T-Mobile's 600 MHz Extended Range LTE service is now live in 1,254 cities and towns in 36 US states and Puerto Rico. The 600 MHz network has better coverage, capacity and internet speed than T-Mobile's regular LTE service, the carrier said Monday.  

600 MHz LTE signals travel twice as far from the cellular towers than the regular LTE service, T-Mobile said. The technology performs four times better in buildings than mid-band LTE, according to T-Mobile. The carrier offers 14 smartphones that can use the spectrum, and more will be added. If your phone model is one of the 14, it will automatically adapt to the 600 MHz LTE network, according to a T-Mobile spokesperson.