Prefix 512-645 — Austin, TX
The 512-645 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.
Code-holder of record: CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (OCN 6506), assigned September 10, 2014. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 512-645 numbers may be served by different companies.
Caller ID showing 512-645 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 |
|---|---|---|
| 512-642 | Hutto | GRANDE COMMUNICATIONS NETWORKS, INC. - TX |
| 512-643 | Austin | BANDWIDTH.COM CLEC, LLC - TX |
| 512-644 | San Marcos | T-MOBILE USA, INC. |
| 512-646 | Austin | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX |
| 512-647 | Austin | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX |
| 512-648 | Wimberley | PEERLESS NETWORK OF TEXAS, LLC - TX |
FAQ
Where is 512-645 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 512-645 numbers?
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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 512-645 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.