Prefix 512-535 — Austin, TX

NANPA CO code assignment, current as of July 28, 2026.

Area code
512
Prefix (NXX)
535
Rate center
Austin
State
Texas
Time zone
Central
Code holder
NEW CINGULAR WIRELESS PCS, LLC - IL
OCN
6534
Pooled
Yes (thousands-block pooling)
Assigned
2005-04-22
LATA
558

The 512-535 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.

The assigned code holder is NEW CINGULAR WIRELESS PCS, LLC - IL, operating company number 6534, assigned April 22, 2005. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.

Caller ID showing 512-535 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

Prefixes adjacent to 512-535
PrefixRate centerCode holder
512-532 Austin LEVEL 3 OF TELECOM OF TEXAS, LLC - TX
512-533 Austin LEVEL 3 OF TELECOM OF TEXAS, LLC - TX
512-534 Austin CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX
512-536 Austin SOUTHWESTERN BELL
512-537 Austin BANDWIDTH.COM CLEC, LLC - TX
512-538 Austin GRANDE COMMUNICATIONS NETWORKS, INC. - TX

FAQ

Where is 512-535 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 512-535 numbers?

NEW CINGULAR WIRELESS PCS, LLC - IL 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 512-535 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.