210 area code: location, overlays and numbers
In San Antonio, Texas, area code 210 serves US telephone users and has done so since 1992. It shares an overlay with 726.
- Location
- San Antonio, Texas
- Service began
- 1992
- Zone for local time
- Central time
- Overlay
- 726
- Calls made locally
- Full 10-digit dialling
- Rate centre list
- 1
- Expected exhaustion
- 2072
- Country calling code
- +1 (United States)
Based on NANPA public reports, the area code report and the rate-centre report, with a file dated 11/01/2026. The projected exhaust year comes from NANPA projections 2026-1 (April 2026). This site is not an official NANPA website.
Get your 210 number
You can get a 210 number in two ways. When you sign up, the provider assigns a new number with its plan. The number is chosen from those the provider has under this code. Numbers already held by a seller are listed at a one-time price and often follow a pattern. After choosing one, you transfer it to a provider.
Providers ranked by first-year cost
| Provider | Cheapest plan | First year | Link |
|---|---|---|---|
 Free app | Basic (Just for me), free | $0 | Open Google Voice |
 Free app | Free plan, free | $0 | Open TextNow |
 Developer API | Pay-as-you-go local number, $1.15 a month | $13.80 | Open Twilio |
 Second-number app | Standard, $3.99 a month billed yearly | $47.99 | Open Burner |
 Toll-free specialist | Solo, $6.99 a month billed yearly | $84 | Open UniTel Voice |
 Second-number app | Deluxe (local number), $6.99 a month billed yearly | $102.88 | Open GoDaddy Conversations (formerly Smartline) |
Sellers offering listed local numbers
| Seller | What it sells | Listed price | Monthly fee | Link |
|---|---|---|---|---|
 Marketplace | Local numbers | From $9 one-time | None stated | Search at Exclusive Digits |
 Marketplace | Local and toll-free | From $9.95 one-time | $2.99 a month | Search at NumberBarn |
 Number broker | Local and toll-free | From $99 one-time | None stated | Search at RingBoost |
 Number broker | Local and toll-free | From $100 one-time | None stated | Search at PhoneNumberExpert |
| 212areacode.comNumber broker | Local numbers | From $150 one-time | None stated | Search at 212areacode.com |
Some sellers and providers may pay us a referral fee. Referral fees never change the ranking, which follows first-year cost. How we earn
Other related area codes
726 serves the same area and has the same numbers pool. Any of these codes may supply a new number in this area. Ask for the one you want.
The other Texas area codes are 214, 512, 713, 915, 817, 806, 409, 903, 972, 281, 254, 940, 830, 956, 832, 361, 469, 936, 979, 682, 430, 325, 432, 737, 346, 945 and 621.
Guides by city: San Antonio area codes.
210 area code questions
Where is 210 used?
The 210 area code covers San Antonio, Texas, and the area around San Antonio-New Braunfels, TX.
Which country code applies to a 210 number?
+1. Because 210 belongs to the North American Numbering Plan, calls from abroad use +1 210 and the 7-digit number.
What time is it in the 210 area code?
The 210 area uses Central time.
Which callers use 210 numbers?
Anyone with a number in this code may be a home, mobile, local business or caller who fakes a local number. The 210 number shown on your screen indicates where it was assigned, but it does not identify the caller.