San Antonio is served by the 210 area code, joined in 2020 by the 726 overlay. Together they cover the city and most of Bexar County. Because the two codes overlay the same area, 10-digit dialing is required for every local call.
Fast Facts: San Antonio Area Codes
| City | San Antonio, Texas |
| Primary Area Code(s) | 210 |
| Overlay Area Code(s) | 726 (2020) |
| Time Zone | Central Time (CT) – CST / CDT |
| Major Counties | Bexar |
| Dialing | 10-digit required |
Area Codes in San Antonio – Detailed Breakdown
210 – San Antonio & Bexar County
Split from 512 in 1992, the 210 area code covers the city of San Antonio and the urban core of Bexar County.
726 – San Antonio overlay
Introduced in 2020 as an overlay of 210, the 726 code covers the same San Antonio and Bexar County region and appears mostly on recently activated numbers.
Neighborhoods & District Mapping
The 210 and 726 codes cover every San Antonio neighborhood, including Downtown and the Alamo, the River Walk, Southtown and King William, Alamo Heights, Monte Vista, the Medical Center district, Stone Oak, and the far North Side. The same codes serve the surrounding Bexar County suburbs; the outer edges of the metro and the Hill Country to the north use the neighboring 830 code.
San Antonio is the second-largest city in Texas and one of the fastest-growing in the country, anchored by a huge military presence at Joint Base San Antonio, a major tourism industry built around the Alamo and the River Walk, and growing healthcare, cybersecurity, and manufacturing sectors. Rapid growth led the original 210 code to add the 726 overlay in 2020, and every local call now requires 10 digits.
Local Dialing Rules & International Calls
Because 210 now shares an overlay with 726, 10-digit dialing is required for every local call in San Antonio. To call a San Antonio number from outside the United States, dial your country’s exit code, then +1 (the North American country code), then the 10-digit number (area code + seven-digit line number).
Major ZIP Codes in San Antonio
San Antonio ZIP codes run roughly 78201–78299, covering everything from Downtown (78205) and the near North Side to Stone Oak (78258) and the far West Side.
Spam & Scam Call Warnings in San Antonio
Scammers often spoof local San Antonio numbers to seem trustworthy. Watch for these tactics reported across the area:
| Scam Type | What to Watch For |
|---|---|
| Utility Shut-off | Fake CPS Energy reps threatening to cut power unless you pay immediately by gift card. |
| Military / Veteran Scam | Calls targeting Joint Base San Antonio families with fake benefit, housing, or charity solicitations. |
| IRS / Tax Scam | Callers threatening arrest over supposed unpaid taxes, demanding gift cards or wire transfers. |
| Timeshare / Vacation Scam | Calls offering fake River Walk vacation packages or timeshare resales that require an upfront fee. |
Red Flag: The IRS, Social Security Administration, and utilities like CPS Energy will never demand immediate payment by gift card, wire transfer, or cryptocurrency. Hang up and verify using an official number.
↑ See the complete list of All US Area Codes by State – every area code across all 50 states in one directory.
Nearby Texas Cities
Frequently Asked Questions
What area codes does San Antonio use?
San Antonio is served by the 210 area code and its 726 overlay, both covering the city and Bexar County.
Do I have to dial 10 digits in San Antonio?
Yes. Because 210 shares an overlay with 726, you must dial the full 10-digit number for every local call.
Does 726 cover the same area as 210?
Yes. 726 is an overlay added in 2020 that covers the exact same San Antonio and Bexar County region as 210.
What county is San Antonio in?
San Antonio is the seat of Bexar County in South-Central Texas.
Is San Antonio in the same area code as Austin?
No. San Antonio uses 210 and 726, while Austin uses 512 and 737. The two cities are about 80 miles apart along Interstate 35 and use separate area codes.
Stay Safe & Explore More
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