NumberResearchRecent thousands-block assignments
36 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 346
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 |
|---|---|---|---|---|---|---|---|
| 2015-06-18 | 346-802-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2015-06-18 | 346-802-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2015-06-18 | 346-802-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2015-06-15 | 346-208-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | DICKINSON | TX |
| 2015-06-12 | 346-666-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | CYPRESS | TX |
| 2015-06-12 | 346-857-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RICHMNRNBG | TX |
| 2015-06-11 | 346-208-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | DICKINSON | TX |
| 2015-06-11 | 346-208-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | DICKINSON | TX |
| 2015-06-11 | 346-300-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | BAMMEL | TX |
| 2015-06-11 | 346-300-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | BAMMEL | TX |
| 2015-06-11 | 346-600-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | HUMBLE | TX |
| 2015-06-11 | 346-600-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | HUMBLE | TX |
| 2015-06-10 | 346-754-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2015-06-10 | 346-754-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2015-06-10 | 346-754-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2015-06-10 | 346-803-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2015-06-10 | 346-803-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2015-06-10 | 346-803-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2015-06-08 | 346-808-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | TOMBALL | TX |
| 2015-06-08 | 346-808-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | TOMBALL | TX |
| 2015-06-08 | 346-808-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | TOMBALL | TX |
| 2015-06-05 | 346-203-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2015-06-05 | 346-203-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2015-06-03 | 346-701-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | HOUSTON | TX |
| 2015-06-03 | 346-701-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2015-06-03 | 346-701-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2015-06-03 | 346-701-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2015-06-01 | 346-216-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | BAYTOWN | TX |
| 2015-06-01 | 346-801-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | BEACH CITY | TX |
| 2015-06-01 | 346-801-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | BEACH CITY | TX |
| 2015-06-01 | 346-801-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | BEACH CITY | TX |
| 2015-05-28 | 346-900-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | SUGAR LAND | TX |
| 2015-05-28 | 346-900-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | SUGAR LAND | TX |
| 2015-05-28 | 346-900-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | SUGAR LAND | TX |
| 2015-05-28 | 346-900-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | SUGAR LAND | TX |
| 2015-05-28 | 346-900-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | SUGAR LAND | TX |
| 2015-05-27 | 346-401-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2015-05-27 | 346-401-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2015-05-27 | 346-401-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2015-05-27 | 346-401-3XXX | 3000–3999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2015-05-27 | 346-401-4XXX | 4000–4999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2015-05-27 | 346-401-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2015-05-27 | 346-401-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2015-05-27 | 346-401-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2015-05-27 | 346-401-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2015-05-27 | 346-401-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2015-05-26 | 346-305-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | SPRING | TX |
| 2015-05-26 | 346-305-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | SPRING | TX |
| 2015-05-26 | 346-305-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | SPRING | TX |
| 2015-05-22 | 346-701-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.