Prefix 512-619 — Austin, TX
512-619 identifies a block of numbers in Austin, TX, within the 512 area code. Every US prefix is tied to exactly one rate center; this one is Austin.
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.
Treat the on-screen number as a hint, not evidence — 512-619 can be spoofed like any US prefix. If a call feels off, verify through an official callback number and file a complaint with the FCC or FTC.
The assigned code holder is T-MOBILE USA, INC., operating company number 6529, assigned April 24, 2001. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 512-616 | Leander | ONVOY, LLC - TX |
| 512-617 | Austin | ONVOY, LLC - TX |
| 512-618 | San Marcos | NEW CINGULAR WIRELESS PCS, LLC - IL |
| 512-620 | Lockhart | SOUTHWESTERN BELL |
| 512-621 | Austin | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX |
| 512-622 | Austin | SPOK, INC. |
FAQ
Where is 512-619 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 512-619 numbers?
T-MOBILE USA, 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 512-619 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.