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

BASTROP prefixes in area code 737

NANPA records 19 assigned NXX blocks to rate center BASTROP in area code 737, 5.7% of the 333 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. 8 holders hold those blocks, the largest being T-MOBILE USA, INC. (7), FRACTEL, LLC (3), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (2). The earliest assignment on record here is 2015-11-24 and the most recent 2026-07-21. 19 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, 512 – overlay codes cover the same geography, so a rate center is served by all of them.

19 assigned blocks – 5.7% of 737
8 holders of record
19 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
737-206 T-Mobile T-MOBILE USA, INC. 2015-11-24 yes yes
737-274 T-Mobile T-MOBILE USA, INC. 2020-08-27 yes yes
737-278 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2020-09-23 yes yes
737-293 T-Mobile T-MOBILE USA, INC. 2021-08-20 yes yes
737-294 T-Mobile T-MOBILE USA, INC. 2021-08-20 yes yes
737-318 T-Mobile T-MOBILE USA, INC. 2022-02-02 yes yes
737-347 CSC VOICE, LLC 2022-10-14 yes yes
737-348 FRACTEL, LLC 2019-12-30 yes yes
737-350 NUSO, LLC 2022-11-15 yes yes
737-352 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2022-11-15 yes yes
737-390 Onvoy ONVOY, LLC - TX 2024-05-29 yes yes
737-424 T-Mobile T-MOBILE USA, INC. 2025-07-21 yes yes
737-426 T-Mobile T-MOBILE USA, INC. 2025-10-01 yes yes
737-433 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2026-01-05 yes yes
737-500 Onvoy ONVOY, LLC - TX 2019-07-25 yes yes
737-730 VoIP Innovations VOIP INNOVATIONS, LLC 2026-07-21 yes no
737-733 FRACTEL, LLC 2020-07-09 yes yes
737-881 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2016-09-07 yes yes
737-899 FRACTEL, LLC 2020-11-27 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
T-MOBILE USA, INC. T-Mobile 7 36.8%
FRACTEL, LLC – 3 15.8%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX Verizon 2 10.5%
ONVOY, LLC - TX Onvoy 2 10.5%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 2 10.5%
CSC VOICE, LLC – 1 5.3%
NUSO, LLC – 1 5.3%
VOIP INNOVATIONS, LLC VoIP Innovations 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 737?

19 blocks: 206, 274, 278, 293, 294, 318, 347, 348, 350, 352, 390, 424 and 7 more, all listed in the table above.

Which carriers have numbers in BASTROP?

T-MOBILE USA, INC. (7 blocks), FRACTEL, LLC (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (2 blocks), ONVOY, LLC - TX (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (2 blocks), CSC VOICE, LLC (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 737

All 333 prefixes in 737