Prefix 512-254 — Austin, TX
The 512-254 prefix belongs to area code 512 and is anchored to the Austin rate center (TX). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.
Austin is part of the Austin-Round Rock-San Marcos, TX Metropolitan Statistical Area. For routing purposes it sits in LATA 558. Numbers here keep Central time.
NANPA's central-office code records list ONVOY, LLC - TX (OCN 903C) as the code holder, assigned May 16, 2023. Because 512-254 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.
Caller ID showing 512-254 is not proof the call came from Austin: 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 |
|---|---|---|
| 512-251 | Austin | SOUTHWESTERN BELL |
| 512-252 | Austin | SOUTHWESTERN BELL |
| 512-253 | Paige | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS |
| 512-255 | Austin | SOUTHWESTERN BELL |
| 512-256 | Kyle | BANDWIDTH.COM CLEC, LLC - TX |
| 512-257 | Austin | SOUTHWESTERN BELL |
FAQ
Where is 512-254 located?
The prefix is assigned to the Austin rate center in TX, area code 512. It is part of the Austin-Round Rock-San Marcos, TX Metropolitan Statistical Area.
Which company owns 512-254 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 512-254 safe to answer?
The prefix itself says nothing about the caller. Legitimate Austin businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.