Prefix 512-587 — Austin, TX

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

Area code
512
Prefix (NXX)
587
Rate center
Austin
State
Texas
Time zone
Central
Code holder
T-MOBILE USA, INC.
OCN
6529
Pooled
Yes (thousands-block pooling)
Assigned
2001-04-24
LATA
558

Numbers in the 512-587 prefix are registered to the Austin rate center in TX, inside area code 512. The prefix is the second block of a ten-digit US number (512-587-XXXX) and pins the number to a billing locality.

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.

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.

Spoofing means this prefix on your screen doesn't guarantee a Austin caller. Verify independently before trusting a request for money or data.

Neighboring prefixes

Prefixes adjacent to 512-587
PrefixRate centerCode holder
512-584 Austin T-MOBILE USA, INC.
512-585 Austin CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX
512-586 Austin T-MOBILE USA, INC.
512-588 Burnet NEW CINGULAR WIRELESS PCS, LLC - IL
512-589 Austin METROPCS, INC.
512-590 Austin CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX

FAQ

Where is 512-587 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 512-587 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 512-587 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.