City Name / Region National Dialing Format International Dialing Format
Lao cai0 (20) 2XXXXX+84 (20) 2XXXXX
Lao cai0 (20) 4XXXXX+84 (20) 4XXXXX
Lao cai0 (20) 5XXXXX+84 (20) 5XXXXX
Lao cai0 (20) 6XXXXX+84 (20) 6XXXXX
Lao cai0 (20) 7XXXXX+84 (20) 7XXXXX
Lao cai0 (20) 8XXXXX+84 (20) 8XXXXX
Lao cai0 (20) 9XXXXX+84 (20) 9XXXXX