The 210 area code is the phone code for San Antonio, Texas. It covers the city and the suburbs right around it. This guide explains where 210 is, what time zone it uses, how the code came about and what to do when an unknown 210 number calls.
210 Area Code Quick Facts
| State | Texas |
| Location | San Antonio and its closest suburbs |
| Time zone | Central Time (UTC-6, UTC-5 during daylight saving time) |
| In service since | November 1, 1992 |
| Type | Geographic area code with an overlay |
| Shares its area with | 726 |
| Toll-free? | No, it is a regular geographic area code |
Check any other code with our free area code lookup tool.
Where Is the 210 Area Code Located?
Area code 210 is centered on San Antonio in south-central Texas. Along with the city itself, it serves close-in communities such as:
- Alamo Heights
- Leon Valley
- Converse
- Live Oak
- Universal City
The wider Hill Country around the city uses area code 830, which surrounds 210 on all sides.
What Time Zone Is the 210 Area Code In?
San Antonio is on Central Time.
- Central Standard Time (CST), UTC-6, in winter
- Central Daylight Time (CDT), UTC-5, from mid March to early November
That puts it one hour behind New York and two hours ahead of Los Angeles. A quick time check saves you from calling someone at dinner or before breakfast.
History of the 210 Area Code
San Antonio was part of area code 512 until November 1, 1992, when 210 was created. The new code first covered a large part of south Texas.
On July 7, 1997 that area was split three ways. San Antonio kept 210, the surrounding ring became 830 and the Rio Grande Valley and Laredo became 956. In October 2017, 726 was added as an overlay, so new San Antonio numbers can start with either code.
How to Dial a 210 Number
Local calls in this area are dialed with the area code included.
- From the US or Canada: 1 + 210 + the seven-digit number
- From another country: your exit code + 1 + 210 + the seven-digit number
Is a Call From 210 a Scam?
Most 210 calls are from real people and businesses in San Antonio. Scammers also spoof 210 numbers to look local, especially to people who live in the city.
Watch for these warning signs:
- Fake bank or card fraud alerts that ask for your PIN or passcode
- Calls about Medicare, health insurance or a car warranty you never asked about
- Messages that claim a family member is in trouble and needs money
- Pressure to stay on the line and act right now
Caller ID can be spoofed, so the number on your screen does not prove where a call comes from.
What to do with an unknown 210 call
- Hang up as soon as a call feels wrong. You do not owe a stranger an explanation.
- Verify the caller through an official number, not the one they give you.
- Block the number.
- Report scam calls at reportfraud.ftc.gov and register at donotcall.gov.
- Forward spam texts to 7726 (SPAM).
How to Get a 210 Phone Number
You do not have to live in San Antonio to use a 210 number.
- Carriers: ask any major carrier for a San Antonio number. You may be given 726 if 210 numbers are short.
- VoIP and virtual number providers: search by area code, pick a 210 number and forward calls to any phone.
- Toll-free numbers: a better fit if your customers are spread across the country.
Read our guides to virtual phone numbers and the 800 area code.
Area Codes Near 210
| 726 | Same area as 210: San Antonio |
| 830 | Hill Country and towns around San Antonio: New Braunfels, Kerrville, Uvalde |
| 512, 737 | Austin |
| 361 | Corpus Christi and Victoria |
| 956 | Laredo and the Rio Grande Valley |
Related guides: 512 area code for Austin, 832 area code for Houston, 214 area code for Dallas.
210 Area Code FAQs
What city is area code 210?
San Antonio, Texas, plus a few suburbs that sit right next to the city.
What is the 726 area code?
726 is the overlay for San Antonio. It covers the same area as 210 and has been in use since 2017.
Is 210 the same as 830?
No. 210 is San Antonio itself. 830 covers the Hill Country and smaller towns around the city.
Is 210 a toll-free number?
No. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.
Final Word
The 210 area code means San Antonio. A familiar local code is not proof that a call is safe, so check any number you do not know before you call back.
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