Prefix 512-643 — Austin, TX
A phone number starting 512-643 was issued in the Austin rate center of TX — part of area code 512.
NANPA's central-office code records list BANDWIDTH.COM CLEC, LLC - TX (OCN 004F) as the code holder, assigned July 2, 2014. Because 512-643 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.
A scammer can display 512-643 without ever touching TX. When in doubt, end the call and reach the company or agency through its official website; unwanted robocalls belong in the FTC's fraud report queue.
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.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 512-640 | Austin | LEVEL 3 COMMUNICATIONS, LLC - TX |
| 512-641 | Adamsville | CENTURYLINK COMMUNICATIONS, LLC |
| 512-642 | Hutto | GRANDE COMMUNICATIONS NETWORKS, INC. - TX |
| 512-644 | San Marcos | T-MOBILE USA, INC. |
| 512-645 | Austin | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX |
| 512-646 | Austin | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX |
FAQ
Where is 512-643 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 512-643 numbers?
BANDWIDTH.COM CLEC, 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 512-643 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.