Good day Bb, thanks for inquiring about the Samsung Galaxy A17 5G. The advertised unlocked Galaxy A17 5G is the U.S. version of this device. It works well with the following networks: 2G GSM - GSM850, GSM900, DCS1800, PCS1900; 3G UMTS - B1(2100), B2(1900), B4(AWS), B5(850), B8(900); 4G FDD LTE - B1(2100), B2(1900), B3(1800), B4(AWS), B5(850), B7(2600), B12(700), B13(700), B14(700), B20(800), B25(1900), B26(850), B28(700), B29(700), B30(2300), B66(AWS-3), B71(600); 4G TDD LTE - B38(2600), B39(1900), B40(2300), B41(2500), B48(3600); 5G FDD Sub6 - N2(1900), N5(850), N25(1900), N66(AWS-3), N71(600); 5G TDD Sub6 - N41(2500), N77(3700), N78(3500). Please feel free to contact Support if you have any other questions. Thank you for being a staunch Samsung customer. - Debra