Vietnam International telephone code The international country calling code of Vietnam is +84. Vietnam City Area Telephone Codes +84 4 Hanoi +84 18 Hoa Binh +84 511 Da Nang +84 31 Hai Phong +84 8 Ho Chi Minh City Vietnam Mobile Telephone Codes/Operators VinaPhone +84 91 MobiFon +84 90 S�Fone +84 95 Vietnam Emergency Telephone Numbers 115 - Ambulance 114 - Fire 113 - Police Number Format Area Code: 1-3 digits Subscriber Number: 5-7 digits Trunk Prefix: 0 International Prefix: 00 Hanoi (+84 4) and Ho Chi Minh City (+84 8) have 7-digit subscriber numbers. All other area codes have 6-digit subscriber numbers. Some non-geographic numbers have been listed as 5-digits for such networks as IM/DM (+84 69) and CP/TD (+84 80). Area code information * Internet Travel Guide FAQ * DCCL General Information As of May 2004, the following applies in Vietnam: Subscriber numbers (regardless of area code) belong to carriers according to the following pattern: Number range Local Carrier ============ ============= 2xxxxxx Viettel 4xxxxxx Saigon Postel Telecom (SPT) 5xxxxxx Viet Nam Posts and Telecommunications Corporation (VNPT) 6xxxxxx Viet Nam Posts and Telecommunications Corporation (VNPT) 7xxxxxx Viet Nam Posts and Telecommunications Corporation (VNPT) 8xxxxxx Viet Nam Posts and Telecommunications Corporation (VNPT) 9xxxxxx Viet Nam Posts and Telecommunications Corporation (VNPT) Mobile area codes are as follows: Number range Mobile carrier ============ ============== +84 90 xxxxxxx MobiFon +84 91 xxxxxxx VinaPhone +84 95 xxxxxxx S-Fone (new carrier) 1xxx short codes are for home country direct, data, internet, special and premium services. 171 is VOIP short code (Voice Over Internet Protocol)