Prefix 512-230 — Austin, TX

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

Area code
512
Prefix (NXX)
230
Rate center
Austin
State
Texas
Time zone
Central
Code holder
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX
OCN
6506
Pooled
Yes (thousands-block pooling)
Assigned
2011-03-25
LATA
558

The 512-230 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 March 25, 2011. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 512-230 numbers may be served by different companies.

Caller ID showing 512-230 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 512-230
PrefixRate centerCode holder
512-227 Lockhart SOUTHWESTERN BELL
512-228 Austin SOUTHWESTERN BELL
512-229 Elgin U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS
512-231 Austin SOUTHWESTERN BELL
512-232 Austin SOUTHWESTERN BELL
512-233 Austin MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX

FAQ

Where is 512-230 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 512-230 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 512-230 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.