NumberResearchRecent thousands-block assignments
11 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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.
Most active assignees, last 30 days — NPA 281
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 |
|---|---|---|---|---|---|---|---|
| 2008-10-03 | 281-302-1XXX | 1000–1999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7074 | SUGAR LAND | TX |
| 2008-10-03 | 281-302-2XXX | 2000–2999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7074 | SUGAR LAND | TX |
| 2008-10-03 | 281-863-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | SPRING | TX |
| 2008-10-02 | 281-402-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | LA PORTE | TX |
| 2008-10-01 | 281-203-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | SPRING | TX |
| 2008-10-01 | 281-475-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | SPRING | TX |
| 2008-09-29 | 281-810-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | HSTNSUBURB | TX |
| 2008-09-19 | 281-786-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | APOLLO | TX |
| 2008-09-09 | 281-475-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SPRING | TX |
| 2008-09-08 | 281-202-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RICHMNRNBG | TX |
| 2008-09-04 | 281-318-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | HUMBLE | TX |
| 2008-08-27 | 281-751-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | MONTBLVIEU | TX |
| 2008-08-25 | 281-944-6XXX | 6000–6999 | Assigned | SOUTHWESTERN BELL | 9533 | BARKER | TX |
| 2008-08-08 | 281-710-1XXX | 1000–1999 | Assigned | EVOLVE CELLULAR, INC. | 139F | ARCOLA | TX |
| 2008-08-08 | 281-969-0XXX | 0000–0999 | Assigned | EVOLVE CELLULAR, INC. | 139F | STAFFORD | TX |
| 2008-08-07 | 281-475-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SPRING | TX |
| 2008-08-07 | 281-638-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2008-08-07 | 281-638-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2008-08-07 | 281-761-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | CLEVELAND | TX |
| 2008-08-06 | 281-917-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | BAYTOWN | TX |
| 2008-08-05 | 281-475-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | SPRING | TX |
| 2008-08-05 | 281-653-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | SATSUMA | TX |
| 2008-08-01 | 281-619-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2008-08-01 | 281-670-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2008-08-01 | 281-670-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2008-08-01 | 281-674-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2008-08-01 | 281-674-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2008-08-01 | 281-674-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2008-07-30 | 281-713-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | HUMBLE | TX |
| 2008-07-30 | 281-760-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2008-07-30 | 281-760-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2008-07-30 | 281-760-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2008-07-17 | 281-475-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SPRING | TX |
| 2008-07-17 | 281-552-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HSTNSUBURB | TX |
| 2008-07-15 | 281-408-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | BAMMEL | TX |
| 2008-07-15 | 281-815-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | LANGHAMCRK | TX |
| 2008-06-27 | 281-619-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2008-06-24 | 281-617-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2008-06-24 | 281-617-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2008-06-24 | 281-617-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2008-06-23 | 281-826-7XXX | 7000–7999 | Assigned | SOUTHWESTERN BELL | 9533 | TOMBALL | TX |
| 2008-06-23 | 281-826-8XXX | 8000–8999 | Assigned | SOUTHWESTERN BELL | 9533 | TOMBALL | TX |
| 2008-06-18 | 281-829-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | BARKER | TX |
| 2008-06-13 | 281-826-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | TOMBALL | TX |
| 2008-06-13 | 281-917-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | BAYTOWN | TX |
| 2008-06-11 | 281-202-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | RICHMNRNBG | TX |
| 2008-06-09 | 281-769-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | KATY | TX |
| 2008-05-28 | 281-375-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | BROOKSHIRE | TX |
| 2008-05-12 | 281-475-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SPRING | TX |
| 2008-05-08 | 281-606-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HSTNSUBURB | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.