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 |
|---|---|---|---|---|---|---|---|
| 2003-10-01 | 281-819-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | FRIENDSWD | TX |
| 2003-10-01 | 281-869-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | WESTFIELD | TX |
| 2003-09-11 | 281-846-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2003-09-11 | 281-914-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | HOUSTON | TX |
| 2003-09-11 | 281-914-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | HOUSTON | TX |
| 2003-09-10 | 281-212-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | APOLLO | TX |
| 2003-09-04 | 281-205-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | TOMBALL | TX |
| 2003-08-22 | 281-241-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | DEER PARK | TX |
| 2003-08-13 | 281-247-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | CHANNELVW | TX |
| 2003-08-13 | 281-417-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | LA PORTE | TX |
| 2003-08-11 | 281-241-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | DEER PARK | TX |
| 2003-08-07 | 281-204-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | APOLLO | TX |
| 2003-08-07 | 281-206-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | BARKER | TX |
| 2003-08-07 | 281-214-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | WESTFIELD | TX |
| 2003-08-07 | 281-241-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | DEER PARK | TX |
| 2003-08-07 | 281-247-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | CHANNELVW | TX |
| 2003-08-07 | 281-248-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | BAMMEL | TX |
| 2003-08-07 | 281-317-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | FRIENDSWD | TX |
| 2003-08-07 | 281-500-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | LANGHAMCRK | TX |
| 2003-08-07 | 281-519-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | MANVEL | TX |
| 2003-08-07 | 281-609-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | SHELDON | TX |
| 2003-08-07 | 281-640-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | SATSUMA | TX |
| 2003-08-07 | 281-816-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | FRIENDSWD | TX |
| 2003-08-07 | 281-867-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | LA PORTE | TX |
| 2003-08-07 | 281-909-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | SEABROOK | TX |
| 2003-08-06 | 281-371-1XXX | 1000–1999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2109 | KATY | TX |
| 2003-07-17 | 281-667-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | APOLLO | TX |
| 2003-07-17 | 281-667-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | APOLLO | TX |
| 2003-07-03 | 281-934-6XXX | 6000–6999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2109 | BROOKSHIRE | TX |
| 2003-06-30 | 281-371-4XXX | 4000–4999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2109 | KATY | TX |
| 2003-06-30 | 281-371-7XXX | 7000–7999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2109 | KATY | TX |
| 2003-06-30 | 281-395-7XXX | 7000–7999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2072 | KATY | TX |
| 2003-06-30 | 281-574-6XXX | 6000–6999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2109 | KATY | TX |
| 2003-06-27 | 281-914-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | HOUSTON | TX |
| 2003-06-27 | 281-914-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | HOUSTON | TX |
| 2003-06-27 | 281-914-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | HOUSTON | TX |
| 2003-06-27 | 281-914-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2003-05-22 | 281-973-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HUMBLE | TX |
| 2003-05-09 | 281-635-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2003-05-09 | 281-652-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2003-05-09 | 281-657-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2003-04-18 | 281-204-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | APOLLO | TX |
| 2003-04-07 | 281-220-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2003-04-03 | 281-622-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CLEVELAND | TX |
| 2003-03-07 | 281-214-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | WESTFIELD | TX |
| 2003-03-05 | 281-914-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | HOUSTON | TX |
| 2003-03-05 | 281-914-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | HOUSTON | TX |
| 2003-03-05 | 281-914-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | HOUSTON | TX |
| 2003-01-02 | 281-668-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HSTNSUBURB | TX |
| 2002-11-19 | 281-652-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | 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.