Area Code 713 January 18, 2021 allcitycodes Telephone Codes 0 Where is area code 713 located? Below you will find a list of all cities covered by area code 713 in Texas. Alief, TX Barker, TX Bellaire, TX Galena Park, TX Hufsmith, TX North Houston, TX Pasadena, TX South Houston, TX Read more:Area Code 708Area Code 706Area Code 815Area Code 830Area Code 810Area Code 816Area Code 812Area Code 804Area Code 813Area Code 715