NumberResearchRecent thousands-block assignments
5 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, last 30 days — NPA 515
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 |
|---|---|---|---|---|---|---|---|
| 2026-09-17 | 515-396-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | AMES | IA |
| 2026-09-17 | 515-396-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | AMES | IA |
| 2026-09-17 | 515-403-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | AMES | IA |
| 2026-09-17 | 515-888-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | BOONE | IA |
| 2026-09-14 | 515-308-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | FORT DODGE | IA |
| 2026-08-06 | 515-403-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | AMES | IA |
| 2026-07-21 | 515-626-9XXX | 9000–9999 | Assigned | ONVOY, LLC - IA | 221F | BOONE | IA |
| 2026-06-30 | 515-403-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | AMES | IA |
| 2026-06-26 | 515-897-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2026-05-29 | 515-403-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | AMES | IA |
| 2025-12-11 | 515-888-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | BOONE | IA |
| 2025-10-02 | 515-897-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2025-10-02 | 515-897-4XXX | 4000–4999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2025-10-02 | 515-897-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2025-10-02 | 515-897-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2025-09-04 | 515-390-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2025-04-10 | 515-655-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2025-04-10 | 515-655-9XXX | 9000–9999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2024-06-21 | 515-766-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | AMES | IA |
| 2024-06-21 | 515-766-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | AMES | IA |
| 2024-06-18 | 515-912-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IA | 221F | INDIANOLA | IA |
| 2024-06-11 | 515-317-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | BOONE | IA |
| 2024-05-14 | 515-425-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | AMES | IA |
| 2024-05-14 | 515-612-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2024-05-14 | 515-682-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2024-04-26 | 515-317-9XXX | 9000–9999 | Assigned | ONVOY, LLC - IA | 221F | BOONE | IA |
| 2024-04-02 | 515-675-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2024-02-20 | 515-317-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | BOONE | IA |
| 2024-02-12 | 515-918-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2024-02-12 | 515-918-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2024-01-25 | 515-425-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IA | 221F | AMES | IA |
| 2024-01-25 | 515-425-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IA | 221F | AMES | IA |
| 2024-01-25 | 515-425-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IA | 221F | AMES | IA |
| 2024-01-12 | 515-672-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2024-01-12 | 515-672-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2024-01-12 | 515-672-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2023-10-18 | 515-561-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2023-10-18 | 515-561-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2023-10-17 | 515-706-9XXX | 9000–9999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2023-10-17 | 515-858-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2023-10-17 | 515-904-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2023-09-18 | 515-384-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IA | 221F | WINTERSET | IA |
| 2023-09-18 | 515-522-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | ALGONA | IA |
| 2023-09-18 | 515-522-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IA | 221F | ALGONA | IA |
| 2023-09-18 | 515-581-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | ADEL | IA |
| 2023-09-18 | 515-581-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IA | 221F | ADEL | IA |
| 2023-08-16 | 515-513-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2023-08-16 | 515-513-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IA | 221F | DES MOINES | IA |
| 2023-08-14 | 515-622-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IA | 221F | GILMORE CY | IA |
| 2023-08-11 | 515-304-9XXX | 9000–9999 | Assigned | ONVOY, LLC - IA | 221F | 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.