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 |
|---|---|---|---|---|---|---|---|
| 2005-05-19 | 281-755-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2005-05-19 | 281-755-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2005-05-19 | 281-755-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2005-05-19 | 281-755-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2005-05-19 | 281-755-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2005-05-19 | 281-755-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2005-05-19 | 281-755-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2005-05-18 | 281-857-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-05-18 | 281-857-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-05-18 | 281-857-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-05-18 | 281-857-3XXX | 3000–3999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-05-18 | 281-857-4XXX | 4000–4999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-05-18 | 281-857-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-05-18 | 281-857-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-05-18 | 281-857-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2005-05-12 | 281-683-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | BAYTOWN | TX |
| 2005-05-11 | 281-757-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2005-05-11 | 281-757-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2005-05-11 | 281-757-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2005-05-11 | 281-757-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2005-05-11 | 281-757-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2005-05-11 | 281-757-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2005-05-09 | 281-644-3XXX | 3000–3999 | Assigned | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | 2072 | KATY | TX |
| 2005-05-03 | 281-973-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HUMBLE | TX |
| 2005-05-03 | 281-973-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HUMBLE | TX |
| 2005-05-03 | 281-973-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HUMBLE | TX |
| 2005-05-02 | 281-691-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | BAYTOWN | TX |
| 2005-05-02 | 281-715-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | DEER PARK | TX |
| 2005-05-02 | 281-715-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | DEER PARK | TX |
| 2005-04-27 | 281-913-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | HUMBLE | TX |
| 2005-04-19 | 281-229-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | DICKINSON | TX |
| 2005-04-19 | 281-761-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | CLEVELAND | TX |
| 2005-04-14 | 281-857-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2005-04-13 | 281-229-6XXX | 6000–6999 | Assigned | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | DICKINSON | TX |
| 2005-04-13 | 281-229-7XXX | 7000–7999 | Assigned | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | DICKINSON | TX |
| 2005-04-11 | 281-302-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | SUGAR LAND | TX |
| 2005-04-11 | 281-645-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | WESTFIELD | TX |
| 2005-04-11 | 281-710-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | ARCOLA | TX |
| 2005-04-06 | 281-306-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SPLENDORA | TX |
| 2005-04-06 | 281-653-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SATSUMA | TX |
| 2005-04-06 | 281-653-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SATSUMA | TX |
| 2005-04-05 | 281-466-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | SPRING | TX |
| 2005-03-29 | 281-766-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | PINEHURST | TX |
| 2005-03-23 | 281-883-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | HUMBLE | TX |
| 2005-03-23 | 281-883-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | HUMBLE | TX |
| 2005-03-23 | 281-883-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | HUMBLE | TX |
| 2005-03-22 | 281-201-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | SUGAR LAND | TX |
| 2005-03-21 | 281-229-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | DICKINSON | TX |
| 2005-03-21 | 281-378-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | TOMBALL | TX |
| 2005-03-21 | 281-378-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | TOMBALL | 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.