NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 315
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-01-22 | 315-276-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | MADRID | NY |
| 2024-01-19 | 315-372-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | SYRACUSE | NY |
| 2024-01-19 | 315-884-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | SYRACUSE | NY |
| 2024-01-19 | 315-884-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | SYRACUSE | NY |
| 2024-01-17 | 315-914-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | UTICA | NY |
| 2024-01-17 | 315-914-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | UTICA | NY |
| 2024-01-17 | 315-914-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | UTICA | NY |
| 2023-08-08 | 315-619-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | HERKIMER | NY |
| 2023-08-08 | 315-619-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | HERKIMER | NY |
| 2023-08-08 | 315-619-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | HERKIMER | NY |
| 2023-08-08 | 315-619-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | HERKIMER | NY |
| 2023-08-08 | 315-619-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | HERKIMER | NY |
| 2022-11-04 | 315-230-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | GENEVA | NY |
| 2022-10-18 | 315-270-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | PENN YAN | NY |
| 2022-07-28 | 315-586-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | WATERTOWN | NY |
| 2022-07-28 | 315-742-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | POTSDAM | NY |
| 2022-03-22 | 315-596-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | OSWEGO | NY |
| 2021-07-30 | 315-275-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | UTICA | NY |
| 2021-07-30 | 315-580-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | UTICA | NY |
| 2021-07-30 | 315-580-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | UTICA | NY |
| 2021-07-30 | 315-749-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | UTICA | NY |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.