Prefix 210-390 — San Antonio, TX
- Area code
- 210
- Prefix (NXX)
- 390
- Rate center
- San Antonio
- State
- Texas
- Time zone
- Central
- Code holder
- LEVEL 3 COMMUNICATIONS, LLC - TX
- OCN
- 6114
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2009-06-16
- LATA
- 566
The 210-390 prefix belongs to area code 210 and is anchored to the San Antonio rate center (TX). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.
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.
The assigned code holder is LEVEL 3 COMMUNICATIONS, LLC - TX, operating company number 6114, assigned June 16, 2009. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
Caller ID showing 210-390 is not proof the call came from San Antonio: spoofing and porting both detach numbers from their origin. To verify a caller, hang up and dial the organization's published number, and report suspicious calls to the FTC.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 210-387 | San Antonio | T-MOBILE USA, INC. |
| 210-388 | San Antonio | XO TEXAS, INC. |
| 210-389 | San Antonio | T-MOBILE USA, INC. |
| 210-391 | San Antonio | T-MOBILE USA, INC. |
| 210-392 | San Antonio | T-MOBILE USA, INC. |
| 210-393 | San Antonio | T-MOBILE USA, INC. |
FAQ
Where is 210-390 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 210-390 numbers?
LEVEL 3 COMMUNICATIONS, 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 210-390 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.