NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 515
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-11-19 | 515-307-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WILLIAMS | IA |
| 2024-11-19 | 515-405-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | RENWICK | IA |
| 2024-11-19 | 515-524-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WEBSTER CY | IA |
| 2024-11-18 | 515-310-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | JEWELL | IA |
| 2024-11-18 | 515-949-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | EAGLEGROVE | IA |
| 2024-05-01 | 515-678-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ALDEN | IA |
| 2024-04-10 | 515-340-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WINTERSET | IA |
| 2024-04-10 | 515-377-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | EARLHAM | IA |
| 2024-04-10 | 515-495-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PRAIRIE CY | IA |
| 2024-04-10 | 515-529-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | COLFAX | IA |
| 2024-04-10 | 515-534-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STUART | IA |
| 2024-04-10 | 515-722-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | RUNNELLS | IA |
| 2024-04-10 | 515-784-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DAWSON | IA |
| 2024-04-10 | 515-788-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PERRY | IA |
| 2024-04-10 | 515-842-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | VAN METER | IA |
| 2024-04-10 | 515-877-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | POLK CITY | IA |
| 2024-04-10 | 515-912-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | INDIANOLA | IA |
| 2024-04-10 | 515-915-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GRANGER | IA |
| 2024-04-10 | 515-969-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DALLAS CTR | IA |
| 2024-03-28 | 515-714-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MADRID | IA |
| 2024-02-07 | 515-220-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CAMBRIDGE | IA |
| 2024-02-07 | 515-366-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DEXTER | IA |
| 2024-02-07 | 515-426-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DE SOTO | IA |
| 2024-02-07 | 515-481-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PLEASANTVL | IA |
| 2024-02-07 | 515-501-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MAXWELL | IA |
| 2024-02-07 | 515-526-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | REDFIELD | IA |
| 2024-02-07 | 515-579-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SLATER | IA |
| 2024-02-07 | 515-676-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BOUTON | IA |
| 2024-02-07 | 515-775-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GRAND JCT | IA |
| 2024-02-07 | 515-852-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DOWS | IA |
| 2024-02-07 | 515-855-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BUCKEYE | IA |
| 2024-02-07 | 515-896-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | RIPPEY | IA |
| 2024-02-06 | 515-382-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NEVADA | IA |
| 2024-02-06 | 515-435-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ROLAND | IA |
| 2024-02-06 | 515-464-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MCCALLSBG | IA |
| 2024-02-06 | 515-646-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LEDYARD | IA |
| 2024-02-06 | 515-862-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STORY CITY | IA |
| 2024-02-06 | 515-870-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SWEA CITY | IA |
| 2024-02-06 | 515-945-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | RANDALL | IA |
| 2024-02-06 | 515-946-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ELKHART | IA |
| 2023-10-18 | 515-301-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | AMES | IA |
| 2023-10-18 | 515-301-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | AMES | IA |
| 2023-10-18 | 515-301-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | AMES | IA |
| 2023-10-18 | 515-301-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | AMES | IA |
| 2023-10-18 | 515-301-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | AMES | IA |
| 2023-08-21 | 515-259-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DES MOINES | IA |
| 2023-08-21 | 515-940-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DES MOINES | IA |
| 2023-08-21 | 515-940-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DES MOINES | IA |
| 2023-02-22 | 515-425-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | AMES | IA |
| 2023-01-31 | 515-904-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DES MOINES | IA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.