NumberResearchRecent thousands-block assignments
2 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 815
New assignments by month
Sep 2026
Aug 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 |
|---|---|---|---|---|---|---|---|
| 2024-03-29 | 815-779-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PLAINFIELD | IL |
| 2024-03-29 | 815-826-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SOMONAUK | IL |
| 2024-03-21 | 815-237-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GARDNER | IL |
| 2024-03-21 | 815-265-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GILMAN | IL |
| 2024-03-21 | 815-414-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | EARLVILLE | IL |
| 2024-03-21 | 815-974-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HEBRON | IL |
| 2024-03-18 | 815-779-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | PLAINFIELD | IL |
| 2024-03-12 | 815-419-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | PONTIAC | IL |
| 2024-02-29 | 815-974-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HEBRON | IL |
| 2024-02-08 | 815-290-1XXX | 1000–1999 | Assigned | ONVOY, LLC | 224C | MINOOKA | IL |
| 2024-02-08 | 815-779-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | PLAINFIELD | IL |
| 2024-02-08 | 815-779-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | PLAINFIELD | IL |
| 2024-02-08 | 815-779-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PLAINFIELD | IL |
| 2024-02-07 | 815-665-8XXX | 8000–8999 | Assigned | ONVOY, LLC | 224C | OTTAWA | IL |
| 2024-02-02 | 815-419-9XXX | 9000–9999 | Assigned | ONVOY, LLC | 224C | PONTIAC | IL |
| 2024-02-02 | 815-888-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | ROCHELLE | IL |
| 2024-01-31 | 815-717-4XXX | 4000–4999 | Assigned | ONVOY, LLC | 224C | NEW LENOX | IL |
| 2024-01-10 | 815-660-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LOCKPORT | IL |
| 2024-01-09 | 815-560-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | HARVARD | IL |
| 2023-12-28 | 815-650-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | FREEPORT | IL |
| 2023-12-07 | 815-420-6XXX | 6000–6999 | Assigned | ONVOY, LLC | 224C | ROCKFORD | IL |
| 2023-11-29 | 815-663-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | SPRING VLY | IL |
| 2023-11-07 | 815-631-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | STERLING | IL |
| 2023-11-07 | 815-760-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | BUREAU | IL |
| 2023-10-17 | 815-231-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ROCKFORD | IL |
| 2023-10-17 | 815-923-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | UNION | IL |
| 2023-09-11 | 815-698-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | ASHKUM | IL |
| 2023-08-25 | 815-420-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROCKFORD | IL |
| 2023-08-18 | 815-449-3XXX | 3000–3999 | Assigned | ONVOY, LLC | 224C | DAKOTA | IL |
| 2023-08-15 | 815-301-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | CRYSTAL LK | IL |
| 2023-08-15 | 815-800-4XXX | 4000–4999 | Assigned | ONVOY, LLC | 224C | POPLAR GRV | IL |
| 2023-07-18 | 815-894-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | LADD | IL |
| 2023-07-14 | 815-296-0XXX | 0000–0999 | Assigned | ONVOY, LLC | 224C | ROCKFORD | IL |
| 2023-07-14 | 815-296-2XXX | 2000–2999 | Assigned | ONVOY, LLC | 224C | ROCKFORD | IL |
| 2023-07-14 | 815-296-3XXX | 3000–3999 | Assigned | ONVOY, LLC | 224C | ROCKFORD | IL |
| 2023-07-14 | 815-296-4XXX | 4000–4999 | Assigned | ONVOY, LLC | 224C | ROCKFORD | IL |
| 2023-07-14 | 815-296-5XXX | 5000–5999 | Assigned | ONVOY, LLC | 224C | ROCKFORD | IL |
| 2023-07-14 | 815-296-6XXX | 6000–6999 | Assigned | ONVOY, LLC | 224C | ROCKFORD | IL |
| 2023-07-14 | 815-296-7XXX | 7000–7999 | Assigned | ONVOY, LLC | 224C | ROCKFORD | IL |
| 2023-07-14 | 815-296-8XXX | 8000–8999 | Assigned | ONVOY, LLC | 224C | ROCKFORD | IL |
| 2023-07-14 | 815-296-9XXX | 9000–9999 | Assigned | ONVOY, LLC | 224C | ROCKFORD | IL |
| 2023-07-14 | 815-420-9XXX | 9000–9999 | Assigned | ONVOY, LLC | 224C | ROCKFORD | IL |
| 2023-07-14 | 815-620-3XXX | 3000–3999 | Assigned | ONVOY, LLC | 224C | MINOOKA | IL |
| 2023-07-14 | 815-640-2XXX | 2000–2999 | Assigned | ONVOY, LLC | 224C | OTTAWA | IL |
| 2023-07-14 | 815-640-3XXX | 3000–3999 | Assigned | ONVOY, LLC | 224C | OTTAWA | IL |
| 2023-07-14 | 815-640-5XXX | 5000–5999 | Assigned | ONVOY, LLC | 224C | OTTAWA | IL |
| 2023-07-14 | 815-640-6XXX | 6000–6999 | Assigned | ONVOY, LLC | 224C | OTTAWA | IL |
| 2023-07-14 | 815-640-7XXX | 7000–7999 | Assigned | ONVOY, LLC | 224C | OTTAWA | IL |
| 2023-07-14 | 815-642-2XXX | 2000–2999 | Assigned | ONVOY, LLC | 224C | MINOOKA | IL |
| 2023-06-27 | 815-859-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ROCHELLE | IL |
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.