NumberResearchRecent thousands-block assignments
33 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 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 |
|---|---|---|---|---|---|---|---|
| 2018-03-12 | 346-318-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | ALVIN | TX |
| 2018-03-12 | 346-318-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | ALVIN | TX |
| 2018-03-09 | 346-297-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HSTNSUBURB | TX |
| 2018-03-09 | 346-297-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HSTNSUBURB | TX |
| 2018-03-09 | 346-297-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HSTNSUBURB | TX |
| 2018-03-09 | 346-298-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | SPRING | TX |
| 2018-03-09 | 346-298-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | SPRING | TX |
| 2018-03-09 | 346-298-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | SPRING | TX |
| 2018-03-09 | 346-298-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | SPRING | TX |
| 2018-03-09 | 346-298-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | SPRING | TX |
| 2018-03-09 | 346-298-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | SPRING | TX |
| 2018-03-09 | 346-298-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | SPRING | TX |
| 2018-03-09 | 346-298-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | SPRING | TX |
| 2018-03-07 | 346-268-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | SPRING | TX |
| 2018-03-07 | 346-291-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HSTNSUBURB | TX |
| 2018-03-07 | 346-291-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HSTNSUBURB | TX |
| 2018-03-07 | 346-291-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HSTNSUBURB | TX |
| 2018-03-07 | 346-291-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HSTNSUBURB | TX |
| 2018-03-07 | 346-291-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HSTNSUBURB | TX |
| 2018-03-07 | 346-291-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HSTNSUBURB | TX |
| 2018-03-07 | 346-291-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HSTNSUBURB | TX |
| 2018-03-05 | 346-209-5XXX | 5000–5999 | Assigned | PEERLESS NETWORK OF TEXAS, LLC - TX | 177F | LIVERPOOL | TX |
| 2018-03-05 | 346-282-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF TEXAS, LLC - TX | 177F | CHANNELVW | TX |
| 2018-02-23 | 346-296-1XXX | 1000–1999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | PINEHURST | TX |
| 2018-02-22 | 346-332-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | CYPRESS | TX |
| 2018-02-16 | 346-209-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | LIVERPOOL | TX |
| 2018-02-16 | 346-268-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | SPRING | TX |
| 2018-02-07 | 346-280-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | CYPRESS | TX |
| 2018-02-07 | 346-295-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | ARCOLA | TX |
| 2018-02-07 | 346-815-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | APOLLO | TX |
| 2018-02-06 | 346-326-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2018-02-06 | 346-326-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2018-02-06 | 346-326-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2018-02-06 | 346-326-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2018-02-06 | 346-326-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2018-02-06 | 346-326-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2018-02-06 | 346-326-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2018-02-06 | 346-326-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2018-02-06 | 346-326-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2018-02-06 | 346-326-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2018-02-05 | 346-306-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | LANGHAMCRK | TX |
| 2018-02-02 | 346-294-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | HOUSTON | TX |
| 2018-02-02 | 346-294-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | HOUSTON | TX |
| 2018-02-02 | 346-294-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | HOUSTON | TX |
| 2018-02-02 | 346-294-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | HOUSTON | TX |
| 2018-02-02 | 346-294-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | HOUSTON | TX |
| 2018-02-02 | 346-294-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | HOUSTON | TX |
| 2018-02-02 | 346-294-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | HOUSTON | TX |
| 2018-01-30 | 346-277-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | SATSUMA | TX |
| 2018-01-29 | 346-263-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | BAYTOWN | 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.