NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/24/2026
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 350
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-08-04 | 350-259-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LODI | CA |
| 2025-01-28 | 350-230-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MODESTO | CA |
| 2025-01-28 | 350-230-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MODESTO | CA |
| 2025-01-28 | 350-230-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MODESTO | CA |
| 2025-01-28 | 350-230-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MODESTO | CA |
| 2025-01-28 | 350-350-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STOCKTON | CA |
| 2025-01-28 | 350-350-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STOCKTON | CA |
| 2025-01-08 | 350-253-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLEMENTS | CA |
| 2025-01-02 | 350-203-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DOS PALOS | CA |
| 2025-01-02 | 350-213-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LINDEN | CA |
| 2025-01-02 | 350-215-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNELLING | CA |
| 2025-01-02 | 350-237-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PATTERSON | CA |
| 2024-01-04 | 350-355-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STOCKTON | CA |
| 2023-11-17 | 350-600-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | OAKDALE | CA |
| 2023-11-17 | 350-630-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | RIVERBANK | CA |
| 2023-11-17 | 350-750-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SNRA MAIN | CA |
| 2023-11-17 | 350-900-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TRACY | CA |
| 2023-11-17 | 350-930-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TURLOCK | CA |
| 2023-11-17 | 350-955-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WTFR DNPR | CA |
| 2023-11-17 | 350-960-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WTFR MAIN | CA |
| 2023-11-15 | 350-201-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WALLACE | CA |
| 2023-11-15 | 350-202-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | THORNTON | CA |
| 2023-11-15 | 350-205-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PLANADA | CA |
| 2023-11-15 | 350-209-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | VALLEY SPG | CA |
| 2023-11-15 | 350-210-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TUOLUMNE | CA |
| 2023-11-15 | 350-305-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | YOSEMITE | CA |
| 2023-11-15 | 350-333-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NEWMAN | CA |
| 2023-11-15 | 350-666-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SANANDREAS | CA |
| 2023-11-14 | 350-500-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ATWATER | CA |
| 2023-11-14 | 350-503-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MERCED | CA |
| 2023-11-14 | 350-530-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ESCALON | CA |
| 2023-11-14 | 350-550-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MOCCASIN | CA |
| 2023-11-13 | 350-208-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | KNIGHTFRRY | CA |
| 2023-11-13 | 350-222-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HUGHSON | CA |
| 2023-11-13 | 350-777-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GALT | CA |
| 2023-11-13 | 350-888-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GROVELAND | CA |
| 2023-11-13 | 350-999-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GUSTINE | CA |
| 2023-10-25 | 350-350-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STOCKTON | CA |
| 2023-10-25 | 350-350-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STOCKTON | CA |
| 2023-10-25 | 350-350-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STOCKTON | CA |
| 2023-10-25 | 350-350-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STOCKTON | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.