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 580
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-02-15 | 580-391-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | CADDO | OK |
| 2024-02-15 | 580-391-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | CADDO | OK |
| 2024-02-15 | 580-624-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | KINGSTON | OK |
| 2024-02-15 | 580-806-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | KINGSTON | OK |
| 2024-01-26 | 580-391-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | CADDO | OK |
| 2024-01-26 | 580-391-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | CADDO | OK |
| 2024-01-26 | 580-565-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | KINGSTON | OK |
| 2024-01-26 | 580-624-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | KINGSTON | OK |
| 2024-01-26 | 580-624-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | KINGSTON | OK |
| 2024-01-26 | 580-624-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | KINGSTON | OK |
| 2022-11-15 | 580-596-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | CHEROKEE | OK |
| 2022-10-25 | 580-722-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | NEWKIRK | OK |
| 2022-07-14 | 580-360-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | LAWTON | OK |
| 2022-07-14 | 580-382-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | PONCA CITY | OK |
| 2022-07-14 | 580-603-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | ENID | OK |
| 2022-07-14 | 580-606-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | DUNCAN | OK |
| 2022-07-14 | 580-798-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | ARDMORE | OK |
| 2022-03-02 | 580-615-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | DURANT | OK |
| 2021-08-18 | 580-391-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | CADDO | OK |
| 2021-08-18 | 580-391-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | CADDO | OK |
| 2021-08-18 | 580-806-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | KINGSTON | OK |
| 2021-08-18 | 580-806-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | KINGSTON | OK |
| 2021-08-18 | 580-806-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | KINGSTON | OK |
| 2021-08-18 | 580-806-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | KINGSTON | OK |
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.