Prefix 512-666 — Austin, TX
Numbers in the 512-666 prefix are registered to the Austin rate center in TX, inside area code 512. The prefix is the second block of a ten-digit US number (512-666-XXXX) and pins the number to a billing locality.
The assigned code holder is EVOLVE CELLULAR, INC., operating company number 139F, assigned March 21, 2011. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
The rate center lies in the Austin-Round Rock-San Marcos, TX Metropolitan Statistical Area. The serving LATA is 558. Local time follows the Central zone.
Spoofing means this prefix on your screen doesn't guarantee a Austin caller. Verify independently before trusting a request for money or data.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 512-663 | Austin | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX |
| 512-664 | Austin | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX |
| 512-665 | San Marcos | T-MOBILE USA, INC. |
| 512-667 | San Marcos | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX |
| 512-668 | Lockhart | TWC IP ENABLED SERVICES, LLC |
| 512-669 | Austin | SOUTHWESTERN BELL |
FAQ
Where is 512-666 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 512-666 numbers?
EVOLVE CELLULAR, INC. 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 512-666 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.