T-Mobile 5G network coverage map: which cities are covered?

T-Mobile has quickly grown one of the best and fastest 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, and in the middle of 2019 that deal is still awaiting regulatory approval. What this means is that we still don't have full clarity over the future of 5G for T-Mobile. Meanwhile, however, the carrier with the magenta color has started firing up the first 5G spots in key urban areas. T-Mobile has started offering its first 5G phone, the Samsung Galaxy S10 5G on June 28th, but keep in mind that the phone will be available only in the few markets where T-Mobile has 5G coverage. Speaking of 5G covered markets, here are the first coverage maps published by the carriers.