

4 main Cellular Frequency Bands in the US
700 MHz band (LTE band 12 and 17): Used by AT&T, Verizon, and T-Mobile for 4G LTE service only.
850 MHz Cellular Band (LTE band 5): LTE band numbers used by AT&T and Verizon only, mostly for 2G Voice and 3G Data service like Straight Talk, U.S.Cellular, though both are beginning to transition to LTE on this band.
1900 MHz PCS Band (LTE band 2): Used by all four major carriers for a mix of 2G, 3G, and 4G LTE service ( At&t, Verizon, Sprint,T-mobile, Straight Talk,U.S. Cellular etc)
2100 MHz AWS Band (LTE band 4): Used by T-Mobile, AT&T and Verizon for 4G LTE service only.



