T-Mobile US has announced that it now covers 200 million people with its 2.5GHz ‘Ultra Capacity 5G’ network. Going forward, the cellco is planning to reach 300 million people – more than 90% of Americans – with Ultra Capacity 5G in the next two years. Running in parallel, T-Mobile’s 600MHz ‘Extended Range 5G’ network now covers 308 million people across 1.7 million square miles.