NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

BASTROP prefixes in area code 512

NANPA records 19 assigned NXX blocks to rate center BASTROP in area code 512, 2.4% of the 785 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 9 holders hold those blocks, the largest being SOUTHWESTERN BELL (7), NEW CINGULAR WIRELESS PCS, LLC - IL (4), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (2). The earliest assignment on record here is 2006-01-05 and the most recent 2022-05-24. 16 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area codes 318, 737 – overlay codes cover the same geography, so a rate center is served by all of them.

19 assigned blocks – 2.4% of 512
9 holders of record
16 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
512-303 AT&T SOUTHWESTERN BELL – no yes
512-304 AT&T SOUTHWESTERN BELL – no yes
512-308 AT&T SOUTHWESTERN BELL – yes yes
512-321 AT&T SOUTHWESTERN BELL – no yes
512-332 AT&T SOUTHWESTERN BELL – yes yes
512-409 Lumen CENTURYLINK COMMUNICATIONS, LLC 2015-02-17 yes yes
512-412 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX 2009-01-05 yes yes
512-521 T-Mobile T-MOBILE USA, INC. – yes yes
512-545 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
512-549 AT&T SOUTHWESTERN BELL 2009-06-16 yes yes
512-581 AT&T SOUTHWESTERN BELL – yes yes
512-629 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2006-01-05 yes yes
512-678 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS – yes yes
512-718 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
512-772 Lumen LEVEL 3 COMMUNICATIONS, LLC - TX – yes yes
512-880 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 2022-05-24 yes yes
512-985 Charter TWC IP ENABLED SERVICES, LLC – yes yes
512-988 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
512-999 EVOLVE CELLULAR, INC. 2008-06-25 yes yes

The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.

Who holds the blocks

HolderBrandBlocksShare here
SOUTHWESTERN BELL AT&T 7 36.8%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 4 21.1%
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS TPx 2 10.5%
CENTURYLINK COMMUNICATIONS, LLC Lumen 1 5.3%
TELEPORT COMMUNICATIONS AMERICA, LLC - TX AT&T 1 5.3%
T-MOBILE USA, INC. T-Mobile 1 5.3%
LEVEL 3 COMMUNICATIONS, LLC - TX Lumen 1 5.3%
TWC IP ENABLED SERVICES, LLC Charter 1 5.3%
EVOLVE CELLULAR, INC. – 1 5.3%

Same rate center in other codes

Overlay codes cover the same geography, so one rate center is served by all of them.

Frequently asked

Which prefixes belong to BASTROP in area code 512?

19 blocks: 303, 304, 308, 321, 332, 409, 412, 521, 545, 549, 581, 629 and 7 more, all listed in the table above.

Which carriers have numbers in BASTROP?

SOUTHWESTERN BELL (7 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (4 blocks), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (2 blocks), CENTURYLINK COMMUNICATIONS, LLC (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - TX (1 block), T-MOBILE USA, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is BASTROP a city?

It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.

Other rate centers in 512

All 785 prefixes in 512