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 563
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-04-16 | 563-346-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DAVENPORT | IA |
| 2025-04-16 | 563-526-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DAVENPORT | IA |
| 2025-04-16 | 563-900-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DAVENPORT | IA |
| 2024-11-19 | 563-201-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DYERSVILLE | IA |
| 2024-11-19 | 563-220-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SABULA | IA |
| 2024-11-19 | 563-228-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BELLEVUE | IA |
| 2024-11-19 | 563-318-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TIPTON | IA |
| 2024-11-19 | 563-351-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DURANT | IA |
| 2024-11-19 | 563-356-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHESTER | IA |
| 2024-11-19 | 563-465-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FARLEY | IA |
| 2024-11-19 | 563-478-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NEW VIENNA | IA |
| 2024-11-19 | 563-522-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LOW MOOR | IA |
| 2024-11-19 | 563-624-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | EPWORTH | IA |
| 2024-11-19 | 563-635-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LE CLAIRE | IA |
| 2024-11-19 | 563-649-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ATALISSA | IA |
| 2024-11-19 | 563-674-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DELMAR | IA |
| 2024-11-19 | 563-677-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHARLOTTE | IA |
| 2024-11-19 | 563-724-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MOSCOW | IA |
| 2024-11-19 | 563-758-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WORTHINGTN | IA |
| 2024-11-19 | 563-766-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | COLESBURG | IA |
| 2024-11-19 | 563-842-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HOLY CROSS | IA |
| 2024-11-19 | 563-853-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LUXEMBURG | IA |
| 2024-11-19 | 563-877-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | EARLVILLE | IA |
| 2024-11-19 | 563-893-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BENNETT | IA |
| 2024-11-19 | 563-944-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LOWDEN | IA |
| 2024-11-19 | 563-945-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STANWOOD | IA |
| 2024-11-19 | 563-946-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ROCHESTER | IA |
| 2023-10-18 | 563-205-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DAVENPORT | IA |
| 2023-10-18 | 563-306-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DAVENPORT | IA |
| 2023-10-18 | 563-306-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DAVENPORT | IA |
| 2023-10-18 | 563-306-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DAVENPORT | IA |
| 2023-10-18 | 563-306-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DAVENPORT | IA |
| 2021-12-22 | 563-348-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DUBUQUE | IA |
| 2021-12-22 | 563-348-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DUBUQUE | IA |
| 2021-10-05 | 563-279-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DAVENPORT | IA |
| 2021-10-05 | 563-279-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DAVENPORT | IA |
| 2021-10-05 | 563-279-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DAVENPORT | IA |
| 2021-10-05 | 563-279-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DAVENPORT | IA |
| 2021-10-05 | 563-281-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MUSCATINE | IA |
| 2021-10-05 | 563-281-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MUSCATINE | IA |
| 2021-10-05 | 563-294-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WEST UNION | IA |
| 2021-10-05 | 563-477-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLINTON | IA |
| 2021-10-05 | 563-477-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLINTON | IA |
| 2021-10-05 | 563-521-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MAQUOKETA | IA |
| 2021-10-05 | 563-521-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MAQUOKETA | IA |
| 2021-06-21 | 563-477-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLINTON | IA |
| 2021-06-21 | 563-540-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WAUKON | IA |
| 2021-06-21 | 563-550-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CALMAR | IA |
| 2021-06-21 | 563-560-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LANSING | IA |
| 2021-06-18 | 563-281-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MUSCATINE | IA |
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.