Bexar County · Texas
San Antonio, TX area codes and time zone
Quick answer
San Antonio is served by area code 210, keeps CST time (GMT-5), and sits in county FIPS 48029.
- Area code
- 210Within 25 miles of the city centre
- Time zone
- CSTAmerica/Chicago
- UTC offset
- GMT-5CDT in summer
- County FIPS
- 48029Bexar County
Dialling from and to San Antonio
What this means when you pick up the phone.
Local calls inside 210 may still work on seven digits, but ten-digit dialling is the safe default everywhere in the country now. From abroad, dial +1 then the ten digits.
More on San Antonio
Other reference data for this city.