T-Mobile is currently using band 41 as one of its primary bands in its mid-band 5G network to add additional downlink capacity in certain markets. Band 41 (2500 MHz): Band 41 is one of the three bands T-Mobile acquired from Sprint in the Sprint-T-Mobile merger.T-Mobile refers to bands 12 and 71 as its “ Extended Range LTE” and promotes that the signal on these bands reaches 2x as far and has 4x better coverage in buildings. Band 71’s lower frequency of 600MHz gives it even better building penetration than band 12 and allows it to travel greater distances. Band 71 (600 MHz): Similar to band 12, band 71 is used as a supplemental band to T-Mobile’s LTE network.Band 12 helps increase coverage and performance across a wide range of markets. Its lower 700MHz frequency allows band 12 to travel greater distances and to have better penetration within buildings. Band 12 (700 MHz): T-Mobile has been using Band 12 as a supplemental band to their LTE network.Traffic on band 2 made up 31% of T-Mobile’s total mobile data by volume, and it is another one of T-Mobile’s primary LTE bands. Band 2 is deployed in a variety of configurations in different markets, including 5x5MHz blocks and 20x20MHz blocks. Band 2 travels a greater distance than band 4 and can create larger coverage areas with fewer cell sites. Band 2 (1900 MHz): T-Mobile uses band 2 predominantly in rural areas of America, particularly in locations where band 4 is not available.Tutella reported band 66 accounted for 48% of T-Mobile’s network traffic. Band 66 is another one of T-Mobile’s core LTE bands. AWS stands for “Advanced Wireless Services” because the frequency bands were primarily used for newer network technologies, like 4G LTE. The additional blocks are G, H, I, and J (collectively referred to as AWS-3), and a chunk at the end referred to as AWS-4. Band 66 (1700/2100 MHz): Band 66 includes the same frequency blocks as Band 4, but adds a few additional blocks of spectrum.Tutella reported that band 4 accounted for 9% of T-Mobile’s mobile data by volume as of September 2020. It’s typically deployed in 20x20MHz blocks in major markets. Band 4 (1700/2100 MHz): Band 4 is one of the primary bands T-Mobile uses for its LTE network.

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