NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/22/2026
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 636
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-04-14 | 636-415-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HARVESTER | MO |
| 2025-04-14 | 636-415-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HARVESTER | MO |
| 2025-04-14 | 636-415-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HARVESTER | MO |
| 2024-12-13 | 636-231-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WASHINGTON | MO |
| 2024-12-13 | 636-254-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MANCHESTER | MO |
| 2024-12-13 | 636-260-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ST CHARLES | MO |
| 2024-12-13 | 636-276-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ST CLAIR | MO |
| 2024-12-13 | 636-280-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | EUREKA | MO |
| 2024-12-13 | 636-354-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HARVESTER | MO |
| 2024-12-13 | 636-424-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | POND | MO |
| 2024-12-13 | 636-434-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PORTAGSIUX | MO |
| 2024-12-13 | 636-517-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | VALLEYPARK | MO |
| 2024-12-13 | 636-732-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GRAYSUMMIT | MO |
| 2024-12-13 | 636-744-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | UNION | MO |
| 2024-12-13 | 636-747-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PACIFIC | MO |
| 2024-03-28 | 636-269-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MAXVILLE | MO |
| 2024-02-22 | 636-270-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WARE | MO |
| 2024-02-22 | 636-310-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HILLSBORO | MO |
| 2024-02-22 | 636-375-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HIGH RIDGE | MO |
| 2024-02-22 | 636-461-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | IMPERIAL | MO |
| 2024-02-22 | 636-465-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FSSCRSTLCY | MO |
| 2024-02-22 | 636-475-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HERCUMPVLY | MO |
| 2024-02-22 | 636-492-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FENTON | MO |
| 2023-10-26 | 636-368-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHESTERFLD | MO |
| 2023-10-26 | 636-536-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHESTERFLD | MO |
| 2023-10-26 | 636-736-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHESTERFLD | MO |
| 2023-10-26 | 636-777-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHESTERFLD | MO |
| 2023-10-26 | 636-777-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHESTERFLD | MO |
| 2021-11-10 | 636-252-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHESTERFLD | MO |
| 2021-11-10 | 636-252-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHESTERFLD | MO |
| 2021-11-10 | 636-347-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DE SOTO | MO |
| 2021-11-10 | 636-347-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DE SOTO | MO |
| 2021-11-10 | 636-635-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CEDAR HILL | MO |
| 2021-11-10 | 636-635-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CEDAR HILL | MO |
| 2021-11-10 | 636-695-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DARDENNE | MO |
| 2021-11-10 | 636-755-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DARDENNE | MO |
| 2021-10-25 | 636-228-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | AUGUSTA | MO |
| 2021-10-25 | 636-228-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | AUGUSTA | MO |
| 2021-10-25 | 636-668-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WINFIELD | MO |
| 2021-10-25 | 636-668-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WINFIELD | MO |
| 2021-10-19 | 636-252-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHESTERFLD | MO |
| 2021-10-19 | 636-252-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHESTERFLD | MO |
| 2021-10-19 | 636-319-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DARDENNE | MO |
| 2021-10-19 | 636-319-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DARDENNE | MO |
| 2021-10-19 | 636-347-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DE SOTO | MO |
| 2021-10-19 | 636-347-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DE SOTO | MO |
| 2021-10-19 | 636-482-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | AUGUSTA | MO |
| 2021-10-19 | 636-482-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | AUGUSTA | MO |
| 2021-10-19 | 636-566-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WINFIELD | MO |
| 2021-10-19 | 636-635-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CEDAR HILL | MO |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.