NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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, all time — 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 |
|---|---|---|---|---|---|---|---|
| 2026-08-04 | 346-883-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BARKER | TX |
| 2026-08-04 | 346-883-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BARKER | TX |
| 2025-09-16 | 346-890-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BAMMEL | TX |
| 2025-09-16 | 346-890-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BAMMEL | TX |
| 2025-09-16 | 346-890-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BAMMEL | TX |
| 2025-09-16 | 346-890-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BAMMEL | TX |
| 2025-09-16 | 346-890-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BAMMEL | TX |
| 2025-09-16 | 346-891-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SUGAR LAND | TX |
| 2025-09-16 | 346-891-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SUGAR LAND | TX |
| 2025-09-16 | 346-891-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SUGAR LAND | TX |
| 2025-09-16 | 346-891-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SUGAR LAND | TX |
| 2025-09-16 | 346-891-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SUGAR LAND | TX |
| 2025-04-18 | 346-865-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SATSUMA | TX |
| 2025-04-18 | 346-865-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SATSUMA | TX |
| 2025-04-18 | 346-865-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SATSUMA | TX |
| 2024-12-04 | 346-421-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ARCOLA | TX |
| 2024-12-04 | 346-829-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SUGAR LAND | TX |
| 2024-09-18 | 346-676-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | KEMAH | TX |
| 2024-04-02 | 346-792-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LANGHAMCRK | TX |
| 2024-04-01 | 346-419-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BAMMEL | TX |
| 2024-04-01 | 346-761-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SATSUMA | TX |
| 2024-04-01 | 346-791-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HUMBLE | TX |
| 2024-04-01 | 346-791-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HUMBLE | TX |
| 2024-03-11 | 346-675-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HSTNSUBURB | TX |
| 2024-03-11 | 346-675-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HSTNSUBURB | TX |
| 2024-03-11 | 346-675-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HSTNSUBURB | TX |
| 2024-02-20 | 346-484-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SHELDON | TX |
| 2024-02-20 | 346-761-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SATSUMA | TX |
| 2024-01-10 | 346-765-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TOMBALL | TX |
| 2024-01-10 | 346-765-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TOMBALL | TX |
| 2024-01-10 | 346-765-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TOMBALL | TX |
| 2024-01-10 | 346-765-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TOMBALL | TX |
| 2024-01-10 | 346-765-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TOMBALL | TX |
| 2024-01-10 | 346-765-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TOMBALL | TX |
| 2024-01-10 | 346-765-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TOMBALL | TX |
| 2024-01-10 | 346-765-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TOMBALL | TX |
| 2023-07-05 | 346-469-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HOUSTON | TX |
| 2023-07-05 | 346-469-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HOUSTON | TX |
| 2023-07-05 | 346-469-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HOUSTON | TX |
| 2023-07-05 | 346-469-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HOUSTON | TX |
| 2023-07-05 | 346-469-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HOUSTON | TX |
| 2023-07-05 | 346-469-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HOUSTON | TX |
| 2023-07-05 | 346-469-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HOUSTON | TX |
| 2023-07-05 | 346-469-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HOUSTON | TX |
| 2023-05-22 | 346-642-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HSTNSUBURB | TX |
| 2023-05-22 | 346-642-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HSTNSUBURB | TX |
| 2022-10-14 | 346-596-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HUMBLE | TX |
| 2022-10-14 | 346-596-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HUMBLE | TX |
| 2022-10-14 | 346-596-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HUMBLE | TX |
| 2022-10-14 | 346-596-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HUMBLE | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.