City Name / Region National Dialing Format International Dialing Format
Son La0 (22) 2XXXXX+84 (22) 2XXXXX
Son La0 (22) 4XXXXX+84 (22) 4XXXXX
Son La0 (22) 5XXXXX+84 (22) 5XXXXX
Son La0 (22) 6XXXXX+84 (22) 6XXXXX
Son La0 (22) 7XXXXX+84 (22) 7XXXXX
Son La0 (22) 8XXXXX+84 (22) 8XXXXX
Son La0 (22) 9XXXXX+84 (22) 9XXXXX