City Name / Region National Dialing Format International Dialing Format
Thai Nguyen0 (280) 2XXXXX+84 (280) 2XXXXX
Thai Nguyen0 (280) 4XXXXX+84 (280) 4XXXXX
Thai Nguyen0 (280) 5XXXXX+84 (280) 5XXXXX
Thai Nguyen0 (280) 6XXXXX+84 (280) 6XXXXX
Thai Nguyen0 (280) 7XXXXX+84 (280) 7XXXXX
Thai Nguyen0 (280) 8XXXXX+84 (280) 8XXXXX
Thai Nguyen0 (280) 9XXXXX+84 (280) 9XXXXX