Prefix 210-451 — San Antonio, TX
- Area code
- 210
- Prefix (NXX)
- 451
- Rate center
- San Antonio
- State
- Texas
- Time zone
- Central
- Code holder
- AT&T ENTERPRISES, LLC
- OCN
- 516C
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2007-06-20
- LATA
- 566
A phone number starting 210-451 was issued in the San Antonio rate center of TX — part of area code 210.
The assigned code holder is AT&T ENTERPRISES, LLC, operating company number 516C, assigned June 20, 2007. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
A scammer can display 210-451 without ever touching TX. When in doubt, end the call and reach the company or agency through its official website; unwanted robocalls belong in the FTC's fraud report queue.
San Antonio is part of the San Antonio-New Braunfels, TX Metropolitan Statistical Area. For routing purposes it sits in LATA 566. Numbers here keep Central time.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 210-448 | San Antonio | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
| 210-449 | San Antonio | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 210-450 | San Antonio | SOUTHWESTERN BELL |
| 210-452 | San Antonio | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 210-453 | San Antonio | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 210-454 | San Antonio | T-MOBILE USA, INC. |
FAQ
Where is 210-451 located?
The prefix is assigned to the San Antonio rate center in TX, area code 210. It is part of the San Antonio-New Braunfels, TX Metropolitan Statistical Area.
Which company owns 210-451 numbers?
AT&T ENTERPRISES, LLC holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.
Is a call from 210-451 safe to answer?
The prefix itself says nothing about the caller. Legitimate San Antonio businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.