TEXAS · AREA CODE GUIDE
210 area code location: San Antonio, Texas
- Local date and time
- Central Time
Map data: HSIP (2010) · NANPA · US Census Bureau, checked 26 September 2026. Boundaries are approximate.
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Download the 210 area code map
A printable area code 210 location map, with time zone and state. Use the PNG image in a document or slide; the SVG stays sharp at any size.
210 area code at a glance
- State
- Texas
- Primary cities
- San Antonio
- Established
- Population
- Largest community: San Antonio, 1,548,422 (2025)Not an area-code population.
- Prefixes in service
- 784 as of 13 October 2026
An area code does not show where a caller is now.
History
Country and calling code: United States (+1).
Parent code: 512.
New code planned: No, as of 22 September 2026.
Time zone
- Central Time
- Standard time UTC−06:00
- Daylight saving time UTC−05:00
Counties and cities covered
210 numbers are issued across 1 community. These are telephone exchange areas, which follow the phone network rather than city limits, so a place can sit just outside the boundary of the town it is named for.
Counties of the communities we could place (the code may reach further): Bexar County, Comal County, and Medina County.
- San Antonio
Notable places in 210
| Place | Where | What it is |
|---|---|---|
| Alamo Mission | 5.3 km from San Antonio | Fortification |
| San Antonio International Airport | 9.0 km from San Antonio | Commercial airport, 5,466,684 enplanements (2024) |
| Frost Bank Center | 9.2 km from San Antonio | Arena |
| Lackland Air Force Base | 10.1 km from San Antonio | Military base |
| Randolph Air Force Base | 25.0 km from San Antonio | Military base |
| Alamodome | 6.5 km from San Antonio | Stadium |
| University of Texas at San Antonio | 16.6 km from San Antonio | University, 39,266 12-month enrollment (2023–24) |
| San Antonio Missions National Historical Park | 8.4 km from San Antonio | National Historical Park |
| Fort Sam Houston | 8.2 km from San Antonio | Military base |
| University of the Incarnate Word | 5.7 km from San Antonio | University, 8,798 12-month enrollment (2023–24) |
Area code 210
210 started service on .It came from 512.
No new code is planned for the region as of .
Area code 726 has its own page.
Questions about 210
Where is the 210 area code?
210 is in Texas. Its numbers are issued in San Antonio.
What time zone is area code 210 in?
210 is in Central Time. Daylight saving time is observed.
Does 210 have an overlay?
Yes. 726 was added as an overlay on 210 on 23 October 2017.
What cities are in the 210 area code?
San Antonio.
What state is area code 210 in?
Area code 210 is in Texas.
What counties are covered by area code 210?
Area code 210 covers communities in Bexar County, Comal County, and Medina County.
Is 210 a toll-free area code?
No. 210 is a geographic area code. The toll-free codes are 800, 833, 844, 855, 866, 877, and 888.
Sources: NANPA area code listing, NANPA places by area code, NANPA central office code assignments, U.S. Census Bureau population estimates, OMB metropolitan area delineations. Checked .
Business phone numbers in area code 210, answered by an AI agent
A local number for San Antonio, Texas, with an AI receptionist that takes caller details, answers the questions you give it, and books appointments. Numbers depend on what carriers have left.