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 |
|---|---|---|---|---|---|---|---|
| 2004-05-11 | 281-602-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | SPRING | TX |
| 2004-04-29 | 281-248-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BAMMEL | TX |
| 2004-04-29 | 281-310-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HSTNSUBURB | TX |
| 2004-04-19 | 281-212-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | APOLLO | TX |
| 2004-04-19 | 281-410-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | STAFFORD | TX |
| 2004-04-19 | 281-622-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | CLEVELAND | TX |
| 2004-03-26 | 281-431-7XXX | 7000–7999 | Assigned | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | ARCOLA | TX |
| 2004-03-04 | 281-691-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | BAYTOWN | TX |
| 2004-02-11 | 281-762-6XXX | 6000–6999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7074 | RICHMNRNBG | TX |
| 2004-02-09 | 281-202-6XXX | 6000–6999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7074 | RICHMNRNBG | TX |
| 2004-02-04 | 281-466-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | SPRING | TX |
| 2004-01-22 | 281-231-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | WESTFIELD | TX |
| 2004-01-15 | 281-310-4XXX | 4000–4999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2003-12-19 | 281-201-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SUGAR LAND | TX |
| 2003-12-19 | 281-377-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | BAMMEL | TX |
| 2003-12-19 | 281-573-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | BEACH CITY | TX |
| 2003-12-19 | 281-667-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | APOLLO | TX |
| 2003-12-19 | 281-751-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | MONTBLVIEU | TX |
| 2003-12-10 | 281-750-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | RICHMNRNBG | TX |
| 2003-11-14 | 281-750-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RICHMNRNBG | TX |
| 2003-11-14 | 281-750-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RICHMNRNBG | TX |
| 2003-11-14 | 281-750-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RICHMNRNBG | TX |
| 2003-11-04 | 281-303-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | BEACH CITY | TX |
| 2003-11-04 | 281-303-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | BEACH CITY | TX |
| 2003-11-04 | 281-303-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | BEACH CITY | TX |
| 2003-11-04 | 281-303-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | BEACH CITY | TX |
| 2003-11-04 | 281-628-3XXX | 3000–3999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | BAYTOWN | TX |
| 2003-11-04 | 281-628-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | BAYTOWN | TX |
| 2003-11-04 | 281-838-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | BAYTOWN | TX |
| 2003-11-04 | 281-839-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | BAYTOWN | TX |
| 2003-10-22 | 281-237-0XXX | 0000–0999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2109 | KATY | TX |
| 2003-10-22 | 281-237-1XXX | 1000–1999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2109 | KATY | TX |
| 2003-10-22 | 281-237-2XXX | 2000–2999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2109 | KATY | TX |
| 2003-10-22 | 281-237-3XXX | 3000–3999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2109 | KATY | TX |
| 2003-10-22 | 281-237-4XXX | 4000–4999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2109 | KATY | TX |
| 2003-10-22 | 281-237-5XXX | 5000–5999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2109 | KATY | TX |
| 2003-10-22 | 281-237-6XXX | 6000–6999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2109 | KATY | TX |
| 2003-10-22 | 281-237-7XXX | 7000–7999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2109 | KATY | TX |
| 2003-10-22 | 281-237-8XXX | 8000–8999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2109 | KATY | TX |
| 2003-10-22 | 281-237-9XXX | 9000–9999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2109 | KATY | TX |
| 2003-10-14 | 281-516-6XXX | 6000–6999 | Assigned | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7074 | TOMBALL | TX |
| 2003-10-07 | 281-205-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | TOMBALL | TX |
| 2003-10-07 | 281-305-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | PINEHURST | TX |
| 2003-10-07 | 281-396-2XXX | 2000–2999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2109 | KATY | TX |
| 2003-10-07 | 281-466-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | SPRING | TX |
| 2003-10-01 | 281-401-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | TOMBALL | TX |
| 2003-10-01 | 281-466-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | SPRING | TX |
| 2003-10-01 | 281-571-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | SATSUMA | TX |
| 2003-10-01 | 281-698-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | BARKER | TX |
| 2003-10-01 | 281-815-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | LANGHAMCRK | 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.