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 309
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-01-03 | 309-844-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | PEORIA | IL |
| 2024-01-03 | 309-844-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | PEORIA | IL |
| 2024-01-03 | 309-913-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | CANTON | IL |
| 2024-01-03 | 309-913-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | CANTON | IL |
| 2024-01-03 | 309-913-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | CANTON | IL |
| 2024-01-03 | 309-996-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | FIATT | IL |
| 2023-04-26 | 309-514-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | ALBANY | IL |
| 2022-11-14 | 309-869-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | LEWISTOWN | IL |
| 2022-11-14 | 309-880-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | IPAVA | IL |
| 2022-10-27 | 309-305-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | MINIERAGTN | IL |
| 2022-10-27 | 309-565-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | HANNA CITY | IL |
| 2022-10-11 | 309-473-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | HEYWORTH | IL |
| 2022-10-11 | 309-504-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | DANVERS | IL |
| 2022-09-25 | 309-641-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | MORTON | IL |
| 2022-09-25 | 309-886-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | WASHINGTON | IL |
| 2022-07-26 | 309-468-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | LE ROY | IL |
| 2022-07-26 | 309-604-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | FARMINGTON | IL |
| 2022-07-26 | 309-632-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | DELAVAN | IL |
| 2022-05-10 | 309-260-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | BLOOMINGTN | IL |
| 2022-04-14 | 309-913-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | CANTON | IL |
| 2021-06-28 | 309-789-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | FIATT | IL |
| 2021-06-28 | 309-789-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | FIATT | IL |
| 2019-11-05 | 309-844-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | PEORIA | 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.