The Area Codes of Vietnam: City/Town or RegionArea code 1.Hà Giang0219 (+84219) 2.Hà Nam0351 (+84351) 3.Hà Tĩnh039 (+8439) 4.Hải Dương0320 (+84320) 5.Hai Phong city031 (+8431) 6.Hanoi city04 (+844) 7.Hậu Giang0711 (+84711) 8.Ho Chi Minh City082 (+8482) 9.Ho Chi Minh City083 (+8483) 10.Ho Chi Minh City084 (+8484) 11.Ho Chi Minh City085 (+8485) 12.Ho Chi Minh City0862 (+84862) 13.Ho Chi Minh City0863 (+84863) 14.Ho Chi Minh City0866 (+84866) 15.Ho Chi Minh City0871 (+84871) 16.Ho Chi Minh City0873 (+84873) 17.Hòa Bình0218 (+84218) 18.Hưng Yên0321 (+84321)