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 |
|---|---|---|---|---|---|---|---|
| 2008-01-17 | 281-832-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2008-01-17 | 281-979-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2008-01-17 | 281-979-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2008-01-15 | 281-409-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HOUSTON | TX |
| 2008-01-15 | 281-764-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HUFFMAN | TX |
| 2008-01-11 | 281-678-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | DICKINSON | TX |
| 2008-01-09 | 281-863-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | SPRING | TX |
| 2008-01-08 | 281-306-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | SPLENDORA | TX |
| 2008-01-08 | 281-515-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | BAYTOWN | TX |
| 2008-01-08 | 281-917-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | BAYTOWN | TX |
| 2008-01-04 | 281-309-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DICKINSON | TX |
| 2008-01-03 | 281-602-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | SPRING | TX |
| 2008-01-03 | 281-882-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | SPRING | TX |
| 2007-12-21 | 281-917-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | BAYTOWN | TX |
| 2007-12-19 | 281-245-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ALVIN | TX |
| 2007-12-19 | 281-245-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ALVIN | TX |
| 2007-12-19 | 281-299-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ALVIN | TX |
| 2007-12-19 | 281-299-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ALVIN | TX |
| 2007-12-18 | 281-616-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BARKER | TX |
| 2007-12-18 | 281-616-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BARKER | TX |
| 2007-12-12 | 281-290-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | TOMBALL | TX |
| 2007-12-11 | 281-818-3XXX | 3000–3999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2007-12-11 | 281-836-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | BAMMEL | TX |
| 2007-12-11 | 281-836-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | BAMMEL | TX |
| 2007-12-11 | 281-902-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2007-12-10 | 281-713-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | HUMBLE | TX |
| 2007-12-06 | 281-763-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HOUSTON | TX |
| 2007-12-06 | 281-780-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | HOUSTON | TX |
| 2007-12-06 | 281-780-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | HOUSTON | TX |
| 2007-12-06 | 281-780-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | HOUSTON | TX |
| 2007-12-06 | 281-780-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | HOUSTON | TX |
| 2007-12-06 | 281-780-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | HOUSTON | TX |
| 2007-12-06 | 281-780-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | HOUSTON | TX |
| 2007-12-06 | 281-780-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | HOUSTON | TX |
| 2007-12-06 | 281-905-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2007-12-06 | 281-905-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2007-12-06 | 281-905-3XXX | 3000–3999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2007-12-03 | 281-456-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SHELDON | TX |
| 2007-11-30 | 281-394-7XXX | 7000–7999 | Assigned | ETS TELEPHONE COMPANY, INC. | 2091 | KATY | TX |
| 2007-11-28 | 281-832-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2007-11-28 | 281-832-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2007-11-26 | 281-979-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2007-11-26 | 281-979-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2007-11-21 | 281-509-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HSTNSUBURB | TX |
| 2007-11-21 | 281-769-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | KATY | TX |
| 2007-11-20 | 281-302-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | SUGAR LAND | TX |
| 2007-11-20 | 281-606-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HSTNSUBURB | TX |
| 2007-11-20 | 281-606-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HSTNSUBURB | TX |
| 2007-11-20 | 281-769-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | KATY | TX |
| 2007-11-20 | 281-779-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | 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.