Latest update: July 8th, 2020.
T-Mobile has quickly grown to have one of the fastest and most widespread 4G LTE networks in the US, and it wants to blanket the nation with 5G coverage as well. To do that, it argues that it needs extra power that will come from a proposed merger with America's fourth largest network, Sprint.
Updated April 1st: The merger that many said would never be completed is now official. T-Mobile has purchased Sprint to create the "New T-Mobile," which it calls a "super charged Un-carrier."
Meanwhile, the carrier with the magenta color has continued firing up 5G in a big way and it now covers a large part of the country in mid 2020.
T-Mobile is offering 5G using sub-6GHz bands that cover wider areas. It is also planning on launching mmWave spots in select urban locations in the near future.
All phones support the sub-6GHz 5G bands that T-Mobile uses, but the Galaxy S20 5G, the LG V60 ThinQ
5G and the OnePlus 8 5G do not have support for mmWave bands
. mmWave is a 5G technology that T-Mobile plans on launching in the future that will deliver faster speeds but in only select small areas. For all else, these are high-end phones with excellent all-around performance.
You can check out an interactive map of all the places where T-Mobile has 5G coverage over at this link: