what area code is 830 in texas
830 is the North American telephone area code for the portion of the state of Texas surrounding and to the west of the city of San Antonio.It was created July 7, 1997, in a split from area code 210, which was retained by most of San Antonio, with a few outer portions of the city moving to 830.This split occurred only five years after 210 split off from area code 512.t was created July 7, 1997, in a split from area code 210, which was retained by most of San Antonio, with a few outer portions of the city moving to 830.