2G Bands: GSM 850 / 900 / 1800 / 19003G Bands: HSDPA 850 / 900 / 1700(AWS) / 1900 / 21004G Bands: LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 14(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 29(700), 30(2300), 38(2600), 39(1900), 40(2300), 41(2500), 46(5200), 66(1700/2100), 71(600)This device has a US Warranty. This T-Mobile Unlocked phone is compatible with Most GSM Carriers like T-Mobile, AT&T, MetroPCS, etc. Will NOT work with CDMA Carriers Such as Verizon, Sprint, Boost.