City Name / Region National Dialing Format International Dialing Format
Hai Phong0 (31) 2XXXXX+84 (31) 2XXXXX
Hai Phong0 (31) 4XXXXX+84 (31) 4XXXXX
Hai Phong0 (31) 5XXXXX+84 (31) 5XXXXX
Hai Phong0 (31) 6XXXXX+84 (31) 6XXXXX
Hai Phong0 (31) 7XXXXX+84 (31) 7XXXXX
Hai Phong0 (31) 8XXXXX+84 (31) 8XXXXX
Hai Phong0 (31) 9XXXXX+84 (31) 9XXXXX