NumberResearchRecent thousands-block assignments
7 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-03-23 | 956-628-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | ENCINAL | TX |
| 2016-03-23 | 956-628-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | ENCINAL | TX |
| 2016-03-10 | 956-291-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HARLINGEN | TX |
| 2016-03-10 | 956-715-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PHARR | TX |
| 2016-03-08 | 956-577-0XXX | 0000–0999 | Assigned | SOUTHWESTERN BELL | 9533 | HARLINGEN | TX |
| 2016-03-08 | 956-625-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | LAREDO | TX |
| 2016-03-08 | 956-625-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | LAREDO | TX |
| 2016-02-18 | 956-422-6XXX | 6000–6999 | Assigned | STPCS JOINT VENTURE, LLC | 4290 | ROMA | TX |
| 2016-02-18 | 956-422-8XXX | 8000–8999 | Assigned | STPCS JOINT VENTURE, LLC | 4290 | ROMA | TX |
| 2016-02-16 | 956-549-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | STILLMAN | TX |
| 2016-02-10 | 956-347-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LYFORD | TX |
| 2016-02-10 | 956-422-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | ROMA | TX |
| 2016-02-10 | 956-633-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SANTA ROSA | TX |
| 2016-02-01 | 956-513-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EDINBURG | TX |
| 2016-02-01 | 956-600-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MISSION | TX |
| 2016-02-01 | 956-803-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MCALLEN | TX |
| 2016-01-29 | 956-659-0XXX | 0000–0999 | Assigned | STPCS JOINT VENTURE, LLC | 4290 | HARLINGEN | TX |
| 2016-01-29 | 956-659-7XXX | 7000–7999 | Assigned | STPCS JOINT VENTURE, LLC | 4290 | HARLINGEN | TX |
| 2016-01-29 | 956-659-8XXX | 8000–8999 | Assigned | STPCS JOINT VENTURE, LLC | 4290 | HARLINGEN | TX |
| 2016-01-29 | 956-659-9XXX | 9000–9999 | Assigned | STPCS JOINT VENTURE, LLC | 4290 | HARLINGEN | TX |
| 2016-01-28 | 956-608-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | LAREDO | TX |
| 2016-01-27 | 956-282-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DOLORES | TX |
| 2016-01-27 | 956-282-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DOLORES | TX |
| 2016-01-25 | 956-403-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHARR | TX |
| 2016-01-20 | 956-715-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | PHARR | TX |
| 2016-01-20 | 956-715-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | PHARR | TX |
| 2016-01-20 | 956-715-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | PHARR | TX |
| 2016-01-20 | 956-715-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | PHARR | TX |
| 2016-01-20 | 956-715-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | PHARR | TX |
| 2016-01-07 | 956-662-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MCALLEN | TX |
| 2016-01-06 | 956-609-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | EDINBURG | TX |
| 2015-12-31 | 956-402-2XXX | 2000–2999 | Assigned | SMARTCOM TELEPHONE, LLC | 4866 | PHARR | TX |
| 2015-12-30 | 956-625-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | LAREDO | TX |
| 2015-12-29 | 956-734-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HARLINGEN | TX |
| 2015-12-23 | 956-609-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | EDINBURG | TX |
| 2015-12-21 | 956-660-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HARLINGEN | TX |
| 2015-12-18 | 956-815-8XXX | 8000–8999 | Assigned | STPCS JOINT VENTURE, LLC | 4290 | LAREDO | TX |
| 2015-12-18 | 956-815-9XXX | 9000–9999 | Assigned | STPCS JOINT VENTURE, LLC | 4290 | LAREDO | TX |
| 2015-12-09 | 956-815-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | LAREDO | TX |
| 2015-12-09 | 956-815-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | LAREDO | TX |
| 2015-12-09 | 956-815-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | LAREDO | TX |
| 2015-12-02 | 956-392-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | HARLINGEN | TX |
| 2015-12-02 | 956-406-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | HARLINGEN | TX |
| 2015-11-23 | 956-667-0XXX | 0000–0999 | Assigned | STPCS JOINT VENTURE, LLC | 4290 | BROWNSVL | TX |
| 2015-11-23 | 956-667-1XXX | 1000–1999 | Assigned | STPCS JOINT VENTURE, LLC | 4290 | BROWNSVL | TX |
| 2015-11-23 | 956-667-9XXX | 9000–9999 | Assigned | STPCS JOINT VENTURE, LLC | 4290 | BROWNSVL | TX |
| 2015-11-23 | 956-772-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PORTISABEL | TX |
| 2015-11-19 | 956-620-4XXX | 4000–4999 | Assigned | STPCS JOINT VENTURE, LLC | 4290 | BROWNSVL | TX |
| 2015-11-19 | 956-620-5XXX | 5000–5999 | Assigned | STPCS JOINT VENTURE, LLC | 4290 | BROWNSVL | TX |
| 2015-11-19 | 956-620-6XXX | 6000–6999 | Assigned | STPCS JOINT VENTURE, LLC | 4290 | BROWNSVL | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.