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 |
|---|---|---|---|---|---|---|---|
| 2006-07-27 | 281-840-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-07-27 | 281-840-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-07-27 | 281-840-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-07-27 | 281-840-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-07-19 | 281-764-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HUFFMAN | TX |
| 2006-07-18 | 281-605-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-07-18 | 281-605-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-07-17 | 281-302-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | SUGAR LAND | TX |
| 2006-07-17 | 281-768-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2006-07-17 | 281-768-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2006-07-17 | 281-768-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2006-07-17 | 281-768-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2006-07-17 | 281-768-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2006-07-17 | 281-768-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2006-07-17 | 281-768-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2006-07-17 | 281-779-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2006-07-17 | 281-825-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SPRING | TX |
| 2006-07-17 | 281-825-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SPRING | TX |
| 2006-07-11 | 281-202-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RICHMNRNBG | TX |
| 2006-07-10 | 281-884-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | DEER PARK | TX |
| 2006-07-03 | 281-301-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BAMMEL | TX |
| 2006-07-03 | 281-312-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HUMBLE | TX |
| 2006-07-03 | 281-570-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HUMBLE | TX |
| 2006-07-03 | 281-570-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HUMBLE | TX |
| 2006-06-29 | 281-570-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HUMBLE | TX |
| 2006-06-27 | 281-738-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | BEACH CITY | TX |
| 2006-06-26 | 281-520-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HOUSTON | TX |
| 2006-06-26 | 281-520-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HOUSTON | TX |
| 2006-06-21 | 281-570-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | HUMBLE | TX |
| 2006-06-15 | 281-323-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SPRING | TX |
| 2006-06-13 | 281-520-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-06-13 | 281-520-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-06-13 | 281-520-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-06-13 | 281-520-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-06-13 | 281-520-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-06-12 | 281-570-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HUMBLE | TX |
| 2006-06-09 | 281-547-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TOMBALL | TX |
| 2006-06-09 | 281-653-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SATSUMA | TX |
| 2006-06-09 | 281-825-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SPRING | TX |
| 2006-06-09 | 281-836-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BAMMEL | TX |
| 2006-06-09 | 281-837-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | BAYTOWN | TX |
| 2006-06-09 | 281-837-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | BAYTOWN | TX |
| 2006-06-08 | 281-753-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-06-08 | 281-753-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-06-08 | 281-753-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-06-08 | 281-753-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-06-08 | 281-753-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-06-08 | 281-753-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-06-08 | 281-753-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2006-06-08 | 281-753-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | 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.