T-Mobile's 5G band set is<p>Band n71 (600 MHz)<p>Band n41 (2.5 GHz)<p>Band n260 (39 GHz)<p>Band n261 (28 GHz)[1]<p>Only 71 is capable of traveling more than a short distance. Reports are band 71 speeds are 100Mbps-200Mbps, which is better than I expected.[2]<p>A couple of notes. 71 is the same band used for 'enhanced' LTE.<p>T-Mobile recently finished the nationwide rollout of band 71, to US towers. From what I can tell, that doesn't include every US tower but 1+ tower in every area. Even then, YMMV. I have a 71 capable phone and there's a (reported) 71 tower nearby but I'm always 66 or 2, never 71.<p>[1]<a href="https://www.t-mobile.com/support/coverage/t-mobile-network" rel="nofollow">https://www.t-mobile.com/support/coverage/t-mobile-network</a><p>[2]<a href="https://venturebeat.com/2019/12/05/t-mobiles-600mhz-5g-peaks-at-roughly-225mbps-but-there-are-caveats/" rel="nofollow">https://venturebeat.com/2019/12/05/t-mobiles-600mhz-5g-peaks...</a>