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

WESLACO prefixes in area code 956

NANPA records 36 assigned NXX blocks to rate center WESLACO in area code 956, 4.9% 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. 11 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC - IL (11), STPCS JOINT VENTURE, LLC (6), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (5). The earliest assignment on record here is 2001-09-10 and the most recent 2026-02-05. 34 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

36 assigned blocks – 4.9% of 956
11 holders of record
34 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
956-246 Lumen LEVEL 3 COMMUNICATIONS, LLC - TX 2003-04-29 yes yes
956-261 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2011-02-22 yes yes
956-272 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2008-01-24 yes yes
956-314 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2008-07-18 yes yes
956-332 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2010-03-17 yes yes
956-351 STPCS JOINT VENTURE, LLC 2007-02-19 yes yes
956-355 T-Mobile METROPCS, INC. 2010-12-29 yes yes
956-363 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2009-05-13 yes yes
956-373 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
956-375 STPCS JOINT VENTURE, LLC 2013-04-25 yes yes
956-376 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX – yes yes
956-405 T-Mobile METROPCS, INC. 2017-02-06 yes yes
956-447 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – yes yes
956-463 T-Mobile METROPCS, INC. 2002-09-25 yes yes
956-472 STPCS JOINT VENTURE, LLC 2001-09-10 yes yes
956-520 STPCS JOINT VENTURE, LLC 2014-10-07 yes yes
956-532 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX – yes yes
956-593 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2020-09-23 yes yes
956-619 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2015-08-10 yes yes
956-647 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 2007-04-16 yes yes
956-650 STPCS JOINT VENTURE, LLC 2001-11-26 yes yes
956-678 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2014-10-20 yes yes
956-684 STPCS JOINT VENTURE, LLC 2006-05-24 yes yes
956-733 FRACTEL, LLC 2020-07-10 yes yes
956-756 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2008-05-27 yes yes
956-798 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2025-01-08 yes yes
956-805 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2023-10-02 yes yes
956-853 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 2026-02-05 yes yes
956-854 Charter TWC IP ENABLED SERVICES, LLC – yes yes
956-856 Charter ONVOY SPECTRUM, LLC 2021-01-22 yes yes
956-865 Onvoy ONVOY, LLC - TX 2022-11-16 yes yes
956-968 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – no yes
956-969 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – no yes
956-973 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – yes yes
956-975 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
956-998 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2011-04-25 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
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 11 30.6%
STPCS JOINT VENTURE, LLC – 6 16.7%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX Verizon 5 13.9%
FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS Frontier 5 13.9%
METROPCS, INC. T-Mobile 3 8.3%
LEVEL 3 COMMUNICATIONS, LLC - TX Lumen 1 2.8%
FRACTEL, LLC – 1 2.8%
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS TPx 1 2.8%
TWC IP ENABLED SERVICES, LLC Charter 1 2.8%
ONVOY SPECTRUM, LLC Charter 1 2.8%
ONVOY, LLC - TX Onvoy 1 2.8%

Frequently asked

Which prefixes belong to WESLACO in area code 956?

36 blocks: 246, 261, 272, 314, 332, 351, 355, 363, 373, 375, 376, 405 and 24 more, all listed in the table above.

Which carriers have numbers in WESLACO?

NEW CINGULAR WIRELESS PCS, LLC - IL (11 blocks), STPCS JOINT VENTURE, LLC (6 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (5 blocks), FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (5 blocks), METROPCS, INC. (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - TX (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is WESLACO 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