San Antonio, TX is currently using one area code which is area code 210. Area Code 210 was created from a split of area code 512 and put into service on November 1, 1992.
In addition to San Antonio, TX area code 210 serves many communities within the San Antonio metro area.
San Antonio, TX is located in Bexar County and observes the Central Time Zone.
View our Times by Area Code tool.