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T-Mobile's Chief Technical Officer Neville Ray has released via a tweet, the complete list of markets covered by the carrier's LTE-Advanced network. The list also reveals which cities offer regular LTE-A and which feature LTE-A with Carrier Aggregation, 4×4 MIMO, and 256QAM. As it turns out, 430 of the 920+ markets are so endowed. Devices that support all three of those additional capabilities can receive Gigabit Class LTE and run at twice the download speed usually obtained with regular LTE-A networks. When you consider that regular LTE-A doubles the download speed of standard LTE networks, you can get an idea how fast peak data speeds can be.Currently, handsets offered by T-Mobile that are compatible with LTE-Advanced include the Samsung Galaxy S8 Motorola Moto Z2 Force , and the LG V30 . As newer flagship models are released, you can expect them to work with the LTE-A signals. Your best bet though, is to check with T-Mobile before making the purchase of a new phone.To check out which of T-Mobile's markets offer LTE-A and LTE-A with the "Trifecta," click on the link which will open a PDF file. The names of LTE-A markets are listed by states. Those with regular LTE-A coverage are in black text, while those with the enhanced capabilities featuring LTE-A with Carrier Aggregation, 4×4 MIMO, and 256QAM are printed in magenta (of course!).source: @NevilleRay