Prefix 210-405 — San Antonio, TX
- Area code
- 210
- Prefix (NXX)
- 405
- Rate center
- San Antonio
- State
- Texas
- Time zone
- Central
- Code holder
- ONVOY, LLC - TX
- OCN
- 903C
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2015-11-18
- LATA
- 566
210-405 identifies a block of numbers in San Antonio, TX, within the 210 area code. Every US prefix is tied to exactly one rate center; this one is San Antonio.
The rate center lies in the San Antonio-New Braunfels, TX Metropolitan Statistical Area. The serving LATA is 566. Local time follows the Central zone.
Treat the on-screen number as a hint, not evidence — 210-405 can be spoofed like any US prefix. If a call feels off, verify through an official callback number and file a complaint with the FCC or FTC.
The assigned code holder is ONVOY, LLC - TX, operating company number 903C, assigned November 18, 2015. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 210-402 | San Antonio | SOUTHWESTERN BELL |
| 210-403 | San Antonio | SOUTHWESTERN BELL |
| 210-404 | San Antonio | SOUTHWESTERN BELL |
| 210-406 | San Antonio | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 210-407 | San Antonio | SOUTHWESTERN BELL |
| 210-408 | San Antonio | SOUTHWESTERN BELL |
FAQ
Where is 210-405 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 210-405 numbers?
ONVOY, LLC - TX 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 210-405 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.