Area code
Area code 210 — San Antonio, TX
Texas · in service since November 1, 1992
Area code 210 covers San Antonio, TX. It is an overlay: 726 serves the same area, so neighbors can have different area codes.
Overlay, same area: 726
Local time in San Antonio
Spam reports from Sep 23 – Oct 22, 2026
Average #131 of 461 codes
630 FTC complaints
Consumer reports, not verified by the FTC.
See the reports- Time zoneCentral Time
- Local calls10 digits
- Prefixes800 assigned
- Runs out~1Q 2072
- Unwanted call?Block & report
Spam call reports about 210 numbers
Complaints by week
Sep 11 – Oct 22, 2026Show as table
| Week starting | Complaints |
|---|---|
| Sep 7 (3 days) | 49 |
| Sep 14 | 189 |
| Sep 21 | 178 |
| Sep 28 | 139 |
| Oct 5 | 135 |
| Oct 12 | 120 |
| Oct 19 (4 days) | 125 |
Compared with all codes
- Robocalls
- 75%all codes 75%
- Callers with the same code
- 66%all codes 35%
- Rank by complaints
- #131of 461 · middle half
- FCC complaints, Oct 2025 – Sep 2026
- 12721 about text messages
What the calls were about
Sep 11 – Oct 22, 2026
| Subject | Complaints | |
|---|---|---|
| Calls pretending to be government, businesses, or family and friends | 143 15% | |
| Dropped call or no message | 136 15% | |
| Medical & prescriptions | 132 14% | |
| Reducing your debt (credit cards, mortgage, student loans) | 46 5% | |
| Warranties & protection plans | 22 2% | |
| Home improvement & cleaning | 19 2% |
Where the people who complained live
Sep 11 – Oct 22, 2026
| State | Complaints | |
|---|---|---|
| Texas | 708 76% | |
| Alaska | 28 3% | |
| California | 23 2% | |
| Florida | 15 2% | |
| Ohio | 12 1% |
October 2026 (partial) report · most reported
Consumer reports, not verified by the FTC · source
Source: FTC Do Not Call complaints created Sep 11 – Oct 22, 2026. They are reported by consumers and are not verified by the FTC; caller ID can be spoofed (how we count).
Source: FCC Consumer Complaints data, unwanted calls filed Oct 1, 2025 – Sep 30, 2026, by caller ID; not verified by the FCC.
Area code 210 location and prefixes
| Exchange (NANPA) | Place | County | Prefixes |
|---|---|---|---|
| SANANTONIO | San Antonio | spans 3 counties | 784 |
Source: NANPA CO codes of Oct 23, 2026; places: U.S. Census Bureau, matched by DialWhere (how).
Is 210 running out of numbers?
Previous forecast (October 2025): 2069, moved later by 3 years.
Forecast exhaust year by edition
Source: NANPA NRUF forecast, April 2026 edition.
Who holds 210 prefixes
The five largest of 37 original holders
As listed by NANPA, not today’s carrier.
| Holder (as listed) | Prefixes | |
|---|---|---|
| Southwestern Bell | 281 35% | |
| New Cingular Wireless PCS, LLC | 129 16% | |
| T-Mobile USA, Inc. | 94 12% | |
| Verizon Wireless | 54 7% | |
| Mcimetro Access Transmission Services LLC | 39 5% |
Source: NANPA CO codes of Oct 23, 2026.
Questions about area code 210
What area code is 210?
A Texas area code, in service since November 1, 1992.
Where is 210 area code, and what time zone is it in?
San Antonio, TX; Central Time.
Why am I getting spam calls from 210?
630 FTC complaints from Sep 23 – Oct 22, 2026, most often about impostors (not verified by the FTC; caller ID can be spoofed).
Will 210 get a new area code?
NANPA forecasts exhaust in 1Q 2072; no relief planning listed.