Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
LAREDO prefixes in area code 956
NANPA records 122 assigned NXX blocks to rate center LAREDO in area code 956, 16.6% 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. 23 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC - IL (35), SOUTHWESTERN BELL (25), STPCS JOINT VENTURE, LLC (15). The earliest assignment on record here is 2001-03-01 and the most recent 2026-08-19. 97 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 code 660 – overlay codes cover the same geography, so a rate center is served by all of them.
122 assigned blocks – 16.6% of 956
23 holders of record
97 of them pooled in 1,000-number lots
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 956-206 | T-Mobile METROPCS, INC. | – | yes | yes |
| 956-218 | SMARTCOM TELEPHONE, LLC | 2003-04-17 | no | yes |
| 956-220 | STPCS JOINT VENTURE, LLC | 2003-02-19 | no | yes |
| 956-229 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2001-06-25 | yes | yes |
| 956-231 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | – | yes | yes |
| 956-235 | STPCS JOINT VENTURE, LLC | 2001-09-10 | yes | yes |
| 956-236 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | – | yes | yes |
| 956-237 | STPCS JOINT VENTURE, LLC | – | yes | yes |
| 956-242 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TX | 2002-03-29 | yes | yes |
| 956-251 | STPCS JOINT VENTURE, LLC | – | yes | yes |
| 956-267 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2011-02-23 | yes | yes |
| 956-269 | Bandwidth BANDWIDTH.COM CLEC, LLC - TX | 2012-10-29 | yes | yes |
| 956-273 | AT&T SOUTHWESTERN BELL | 2010-11-24 | yes | yes |
| 956-284 | STPCS JOINT VENTURE, LLC | – | yes | yes |
| 956-285 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | yes | yes |
| 956-286 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 956-290 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2011-01-03 | yes | yes |
| 956-301 | STPCS JOINT VENTURE, LLC | 2019-01-10 | yes | yes |
| 956-307 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2010-04-29 | yes | yes |
| 956-308 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2019-07-24 | yes | yes |
| 956-319 | AT&T AT&T - LOCAL | – | yes | yes |
| 956-324 | STPCS JOINT VENTURE, LLC | – | no | yes |
| 956-326 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 956-333 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2006-09-12 | yes | yes |
| 956-334 | STPCS JOINT VENTURE, LLC | – | yes | yes |
| 956-337 | STPCS JOINT VENTURE, LLC | – | yes | yes |
| 956-344 | Spok SPOK, INC. | – | no | yes |
| 956-394 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2019-09-18 | yes | yes |
| 956-401 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2007-03-15 | yes | yes |
| 956-413 | T-Mobile METROPCS, INC. | 2013-05-29 | yes | yes |
| 956-415 | Bandwidth BANDWIDTH.COM CLEC, LLC - TX | 2013-05-20 | yes | yes |
| 956-436 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2008-07-21 | yes | yes |
| 956-439 | STPCS JOINT VENTURE, LLC | 2022-07-29 | yes | yes |
| 956-441 | Charter TWC IP ENABLED SERVICES, LLC | 2015-09-22 | yes | yes |
| 956-449 | Onvoy ONVOY, LLC - TX | 2024-04-10 | yes | yes |
| 956-452 | Vonage VONAGE AMERICA LLC | – | yes | yes |
| 956-462 | AT&T AT&T ENTERPRISES, LLC | 2009-11-04 | yes | yes |
| 956-469 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2026-05-13 | yes | yes |
| 956-470 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 2024-09-18 | yes | yes |
| 956-471 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2019-05-07 | yes | yes |
| 956-473 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 956-477 | Onvoy ONVOY, LLC - TX | 2017-08-23 | yes | yes |
| 956-480 | T-Mobile METROPCS, INC. | 2014-09-18 | yes | yes |
| 956-482 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2019-11-27 | yes | yes |
| 956-489 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2001-03-16 | yes | yes |
| 956-508 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2007-11-07 | yes | yes |
| 956-516 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2014-08-22 | yes | yes |
| 956-523 | AT&T SOUTHWESTERN BELL | 2001-03-01 | yes | yes |
| 956-528 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2020-03-03 | yes | yes |
| 956-531 | Windstream PAETEC ITEL, LLC | 2020-04-06 | yes | yes |
| 956-539 | Vonage VONAGE AMERICA LLC | 2018-11-15 | yes | yes |
| 956-552 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 2020-07-21 | yes | yes |
| 956-568 | Charter TWC IP ENABLED SERVICES, LLC | – | no | yes |
| 956-602 | Charter TWC IP ENABLED SERVICES, LLC | 2014-10-22 | yes | yes |
| 956-606 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2014-10-20 | yes | yes |
| 956-608 | STPCS JOINT VENTURE, LLC | 2014-12-12 | yes | yes |
| 956-612 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2014-11-25 | yes | yes |
| 956-615 | Charter TWC IP ENABLED SERVICES, LLC | 2015-07-21 | yes | yes |
| 956-625 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 2015-12-30 | yes | yes |
| 956-629 | T-Mobile METROPCS, INC. | 2021-01-22 | yes | yes |
| 956-635 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 2007-10-11 | yes | yes |
| 956-645 | STPCS JOINT VENTURE, LLC | – | no | yes |
| 956-649 | STPCS JOINT VENTURE, LLC | 2021-11-16 | yes | yes |
| 956-652 | T-Mobile METROPCS, INC. | 2014-06-27 | yes | yes |
| 956-679 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 2022-09-26 | yes | yes |
| 956-691 | NUSO, LLC | – | yes | yes |
| 956-693 | AT&T SOUTHWESTERN BELL | 2001-11-15 | yes | yes |
| 956-701 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2013-10-25 | yes | yes |
| 956-704 | Bandwidth BANDWIDTH.COM CLEC, LLC - TX | 2015-09-22 | yes | yes |
| 956-712 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 956-717 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 956-718 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 956-721 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 956-722 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 956-723 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 956-724 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 956-725 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 956-726 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 956-727 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 956-728 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 956-729 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 956-736 | Dish BOOST SUBSCRIBERCO L.L.C. | 2023-06-28 | yes | yes |
| 956-740 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 956-744 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 956-749 | Onvoy ONVOY, LLC - TX | 2024-12-13 | yes | yes |
| 956-753 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 956-754 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 2006-09-22 | yes | yes |
| 956-757 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2023-09-18 | yes | yes |
| 956-763 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 956-764 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 956-770 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 2024-09-18 | yes | yes |
| 956-771 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | yes | yes |
| 956-774 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2008-04-29 | yes | yes |
| 956-775 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2008-06-13 | yes | yes |
| 956-786 | AT&T SOUTHWESTERN BELL | 2011-07-20 | yes | yes |
| 956-790 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 956-791 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 956-794 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 956-795 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 956-796 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 956-810 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2025-02-14 | yes | yes |
| 956-813 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2024-09-11 | yes | yes |
| 956-814 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2025-06-06 | yes | yes |
| 956-815 | Onvoy ONVOY, LLC - TX | 2015-12-09 | yes | yes |
| 956-817 | Onvoy ONVOY, LLC - TX | 2026-05-29 | yes | yes |
| 956-818 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2025-10-09 | yes | yes |
| 956-819 | Onvoy ONVOY, LLC - TX | 2025-10-16 | yes | yes |
| 956-835 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2026-01-14 | yes | yes |
| 956-857 | Onvoy ONVOY, LLC - TX | – | yes | yes |
| 956-898 | STPCS JOINT VENTURE, LLC | – | yes | yes |
| 956-906 | Onvoy ONVOY, LLC - TX | 2024-02-01 | yes | yes |
| 956-937 | TON80 COMMUNICATIONS, LLC | 2021-04-12 | yes | yes |
| 956-942 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2024-01-18 | yes | yes |
| 956-949 | STPCS JOINT VENTURE, LLC | 2007-07-13 | yes | yes |
| 956-951 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 2025-02-28 | yes | yes |
| 956-952 | Charter ONVOY SPECTRUM, LLC | 2021-01-25 | yes | yes |
| 956-955 | FRACTEL, LLC | 2020-07-10 | yes | yes |
| 956-965 | Charter ONVOY SPECTRUM, LLC | 2025-09-16 | yes | yes |
| 956-977 | FRACTEL, LLC | 2019-08-26 | yes | yes |
| 956-981 | Onvoy ONVOY, LLC - TX | 2026-08-19 | yes | no |
| 956-989 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2026-08-05 | yes | no |
| 956-999 | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 2010-01-12 | 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
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 35 | 28.7% |
| SOUTHWESTERN BELL | AT&T | 25 | 20.5% |
| STPCS JOINT VENTURE, LLC | – | 15 | 12.3% |
| ONVOY, LLC - TX | Onvoy | 9 | 7.4% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | Verizon | 7 | 5.7% |
| METROPCS, INC. | T-Mobile | 5 | 4.1% |
| TWC IP ENABLED SERVICES, LLC | Charter | 4 | 3.3% |
| BANDWIDTH.COM CLEC, LLC - TX | Bandwidth | 3 | 2.5% |
| VONAGE AMERICA LLC | Vonage | 2 | 1.6% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - TX | AT&T | 2 | 1.6% |
| ONVOY SPECTRUM, LLC | Charter | 2 | 1.6% |
| FRACTEL, LLC | – | 2 | 1.6% |
| SMARTCOM TELEPHONE, LLC | – | 1 | 0.8% |
| GRANDE COMMUNICATIONS NETWORKS, INC. - TX | – | 1 | 0.8% |
| LEVEL 3 COMMUNICATIONS, LLC - TX | Lumen | 1 | 0.8% |
| AT&T - LOCAL | AT&T | 1 | 0.8% |
| SPOK, INC. | Spok | 1 | 0.8% |
| AT&T ENTERPRISES, LLC | AT&T | 1 | 0.8% |
| PAETEC ITEL, LLC | Windstream | 1 | 0.8% |
| NUSO, LLC | – | 1 | 0.8% |
| BOOST SUBSCRIBERCO L.L.C. | Dish | 1 | 0.8% |
| TON80 COMMUNICATIONS, LLC | – | 1 | 0.8% |
| FOREMOST TELECOMMUNICATIONS CORPORATION - TX | – | 1 | 0.8% |
Frequently asked
Which prefixes belong to LAREDO in area code 956?
122 blocks: 206, 218, 220, 229, 231, 235, 236, 237, 242, 251, 267, 269 and 110 more, all listed in the table above.
Which carriers have numbers in LAREDO?
NEW CINGULAR WIRELESS PCS, LLC - IL (35 blocks), SOUTHWESTERN BELL (25 blocks), STPCS JOINT VENTURE, LLC (15 blocks), ONVOY, LLC - TX (9 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (7 blocks), METROPCS, INC. (5 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is LAREDO 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.