Hi there Susie, thanks for asking us your question about the Samsung Galaxy A16. The advertised unlocked Galaxy A16 is compatible with 2G GSM- GSM850, GSM900, DCS1800, and PCS1900; 3G UMTS - B1(2100), B2(1900), B4(AWS), B5(850), and 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), and B71(600); 4G TDD LTE - B38(2600), B39(1900), B40(2300), B41(2500), and B48(3600); 5G FDD Sub6 - N2(1900), N5(850), N25(1900), N66(AWS-3), and N71(600); and 5G TDD mmWave - N41(2500), N77(3700), and N78(3500). If you have any other questions for us, please feel free to contact Support. Thank you for being a valued Samsung customer. - Debra