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

BROWNSVL prefixes in area code 956

NANPA records 105 assigned NXX blocks to rate center BROWNSVL in area code 956, 14.3% of the 735 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. 24 holders hold those blocks, the largest being STPCS JOINT VENTURE, LLC (24), NEW CINGULAR WIRELESS PCS, LLC - IL (22), SOUTHWESTERN BELL (22). The earliest assignment on record here is 2001-03-02 and the most recent 2026-09-16. 90 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 270, 364, 458, 507 – overlay codes cover the same geography, so a rate center is served by all of them.

105 assigned blocks – 14.3% of 956
24 holders of record
90 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
956-203 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2006-11-02 yes yes
956-204 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2006-12-19 yes yes
956-210 AHOI LLC 2026-06-08 yes yes
956-214 SMARTCOM TELEPHONE, LLC 2003-04-17 no yes
956-243 AT&T AT&T - LOCAL 2002-10-09 yes yes
956-266 STPCS JOINT VENTURE, LLC 2002-03-25 no yes
956-280 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2009-11-30 yes yes
956-293 STPCS JOINT VENTURE, LLC 2009-04-16 yes yes
956-295 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2011-02-22 yes yes
956-296 AT&T SOUTHWESTERN BELL 2014-06-30 yes yes
956-312 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
956-336 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2011-01-31 yes yes
956-338 Vonage VONAGE AMERICA LLC 2018-03-13 yes yes
956-346 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX – no yes
956-350 AT&T SOUTHWESTERN BELL – no yes
956-356 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX 2017-04-18 yes yes
956-371 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
956-372 AT&T AT&T ENTERPRISES, LLC 2006-07-19 yes yes
956-382 STPCS JOINT VENTURE, LLC 2017-03-16 yes yes
956-404 Bandwidth BANDWIDTH.COM CLEC, LLC - TX 2012-09-27 yes yes
956-407 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2012-09-27 yes yes
956-408 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2008-02-19 yes yes
956-431 Onvoy ONVOY, LLC - TX 2017-04-19 yes yes
956-435 Bandwidth BANDWIDTH.COM CLEC, LLC - TX 2014-02-28 yes yes
956-442 T-Mobile METROPCS, INC. 2014-02-20 yes yes
956-443 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2014-06-05 yes yes
956-455 STPCS JOINT VENTURE, LLC 2002-12-12 yes yes
956-459 T-Mobile METROPCS, INC. 2002-09-25 yes yes
956-465 Lumen LEVEL 3 COMMUNICATIONS, LLC - TX 2002-06-13 yes yes
956-466 STPCS JOINT VENTURE, LLC 2003-03-24 yes yes
956-479 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2019-10-17 yes yes
956-484 STPCS JOINT VENTURE, LLC 2020-01-14 yes yes
956-504 AT&T SOUTHWESTERN BELL – no yes
956-505 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2020-02-11 yes yes
956-509 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2013-06-17 yes yes
956-517 STPCS JOINT VENTURE, LLC 2007-04-03 yes yes
956-518 STPCS JOINT VENTURE, LLC 2013-07-22 yes yes
956-521 STPCS JOINT VENTURE, LLC 2007-04-16 yes yes
956-525 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2004-12-06 yes yes
956-538 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2020-05-13 yes yes
956-541 AT&T SOUTHWESTERN BELL – no yes
956-542 AT&T SOUTHWESTERN BELL – no yes
956-543 STPCS JOINT VENTURE, LLC 2006-09-13 yes yes
956-544 AT&T SOUTHWESTERN BELL – no yes
956-545 Charter TWC IP ENABLED SERVICES, LLC – yes yes
956-546 AT&T SOUTHWESTERN BELL – no yes
956-547 AT&T SOUTHWESTERN BELL – yes yes
956-548 AT&T SOUTHWESTERN BELL – no yes
956-550 AT&T SOUTHWESTERN BELL – yes yes
956-551 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX – yes yes
956-554 AT&T SOUTHWESTERN BELL – yes yes
956-559 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2014-12-01 yes yes
956-561 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2001-05-11 yes yes
956-572 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
956-574 AT&T SOUTHWESTERN BELL – yes yes
956-576 STPCS JOINT VENTURE, LLC 2020-09-02 yes yes
956-579 AT&T SOUTHWESTERN BELL 2002-02-05 yes yes
956-589 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX 2007-06-04 yes yes
956-590 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2010-12-23 yes yes
956-592 STPCS JOINT VENTURE, LLC 2001-03-13 yes yes
956-594 IP HORIZON LLC 2020-09-28 yes yes
956-596 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2020-10-19 yes yes
956-604 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX 2020-11-02 yes yes
956-617 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2015-08-03 yes yes
956-620 STPCS JOINT VENTURE, LLC 2015-08-11 yes yes
956-621 Charter TWC IP ENABLED SERVICES, LLC – yes yes
956-639 STPCS JOINT VENTURE, LLC 2001-03-02 no yes
956-640 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2007-10-17 yes yes
956-641 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2015-05-11 yes yes
956-643 NUSO, LLC 2021-09-28 yes yes
956-667 STPCS JOINT VENTURE, LLC 2015-11-23 yes yes
956-676 CALLWORKS CORPORATION 2022-03-02 yes yes
956-694 COMMIO, LLC 2022-01-14 yes yes
956-698 AT&T SOUTHWESTERN BELL 2001-03-09 yes yes
956-708 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2015-03-03 yes yes
956-709 Onvoy ONVOY, LLC - TX 2023-07-19 yes yes
956-714 STPCS JOINT VENTURE, LLC 2016-04-14 yes yes
956-747 FOREMOST TELECOMMUNICATIONS CORPORATION - TX 2016-05-19 yes yes
956-755 AT&T SOUTHWESTERN BELL – yes yes
956-768 Spok SPOK, INC. 2001-05-07 no yes
956-801 STPCS JOINT VENTURE, LLC 2014-11-21 yes yes
956-804 COMMIO, LLC 2023-12-21 yes yes
956-816 STPCS JOINT VENTURE, LLC 2025-07-21 yes yes
956-822 FRACTEL, LLC 2021-05-10 yes yes
956-824 STPCS JOINT VENTURE, LLC 2025-11-05 yes yes
956-826 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2025-12-03 yes yes
956-829 STPCS JOINT VENTURE, LLC 2025-12-09 yes yes
956-831 AT&T SOUTHWESTERN BELL – no yes
956-832 AT&T SOUTHWESTERN BELL – yes yes
956-838 AT&T SOUTHWESTERN BELL – yes yes
956-839 STPCS JOINT VENTURE, LLC 2025-10-03 yes yes
956-840 Comcast COMCAST IP PHONE, LLC 2023-05-09 yes yes
956-841 STPCS JOINT VENTURE, LLC – yes no
956-846 STPCS JOINT VENTURE, LLC 2025-08-19 yes yes
956-866 FRACTEL, LLC 2021-01-14 yes yes
956-881 8x8 8X8, INC. 2026-09-16 yes no
956-882 AT&T SOUTHWESTERN BELL 2004-11-16 yes yes
956-908 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2007-06-01 yes yes
956-909 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2007-09-06 yes yes
956-954 STPCS JOINT VENTURE, LLC 2024-09-11 yes yes
956-982 AT&T SOUTHWESTERN BELL – no yes
956-983 AT&T SOUTHWESTERN BELL – yes yes
956-986 AT&T SOUTHWESTERN BELL – yes yes
956-987 NUSO, LLC 2024-04-18 yes yes
956-993 IP HORIZON LLC 2025-04-07 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
STPCS JOINT VENTURE, LLC – 24 22.9%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 22 21%
SOUTHWESTERN BELL AT&T 22 21%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX Verizon 7 6.7%
TELEPORT COMMUNICATIONS AMERICA, LLC - TX AT&T 3 2.9%
BANDWIDTH.COM CLEC, LLC - TX Bandwidth 2 1.9%
ONVOY, LLC - TX Onvoy 2 1.9%
METROPCS, INC. T-Mobile 2 1.9%
TWC IP ENABLED SERVICES, LLC Charter 2 1.9%
IP HORIZON LLC – 2 1.9%
NUSO, LLC – 2 1.9%
COMMIO, LLC – 2 1.9%
FRACTEL, LLC – 2 1.9%
AHOI LLC – 1 1%
SMARTCOM TELEPHONE, LLC – 1 1%
AT&T - LOCAL AT&T 1 1%
VONAGE AMERICA LLC Vonage 1 1%
AT&T ENTERPRISES, LLC AT&T 1 1%
LEVEL 3 COMMUNICATIONS, LLC - TX Lumen 1 1%
CALLWORKS CORPORATION – 1 1%
FOREMOST TELECOMMUNICATIONS CORPORATION - TX – 1 1%
SPOK, INC. Spok 1 1%
COMCAST IP PHONE, LLC Comcast 1 1%
8X8, INC. 8x8 1 1%

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 BROWNSVL in area code 956?

105 blocks: 203, 204, 210, 214, 243, 266, 280, 293, 295, 296, 312, 336 and 93 more, all listed in the table above.

Which carriers have numbers in BROWNSVL?

STPCS JOINT VENTURE, LLC (24 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (22 blocks), SOUTHWESTERN BELL (22 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (7 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - TX (3 blocks), BANDWIDTH.COM CLEC, LLC - TX (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is BROWNSVL 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 956

All 735 prefixes in 956