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 531
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-01-17 | 531-202-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | OAKLAND | NE |
| 2024-01-17 | 531-237-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | PENDER | NE |
| 2024-01-17 | 531-252-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | CRESTON | NE |
| 2024-01-17 | 531-257-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | VALENTINE | NE |
| 2024-01-17 | 531-293-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | SCHUYLER | NE |
| 2024-01-17 | 531-302-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | TECUMSEH | NE |
| 2024-01-17 | 531-315-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | BLAIR | NE |
| 2024-01-17 | 531-357-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | AINSWORTH | NE |
| 2024-01-17 | 531-893-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | LINCOLN | NE |
| 2024-01-17 | 531-893-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | LINCOLN | NE |
| 2024-01-17 | 531-893-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | LINCOLN | NE |
| 2023-08-22 | 531-343-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | CRESTON | NE |
| 2023-08-22 | 531-343-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | CRESTON | NE |
| 2023-08-22 | 531-343-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | CRESTON | NE |
| 2023-08-22 | 531-343-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | CRESTON | NE |
| 2023-08-22 | 531-343-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | CRESTON | NE |
| 2023-08-10 | 531-340-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | CLARKSON | NE |
| 2023-08-10 | 531-340-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | CLARKSON | NE |
| 2023-08-10 | 531-340-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | CLARKSON | NE |
| 2023-08-10 | 531-340-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | CLARKSON | NE |
| 2023-08-10 | 531-340-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | CLARKSON | NE |
| 2023-07-25 | 531-293-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | SCHUYLER | NE |
| 2023-07-25 | 531-293-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | SCHUYLER | NE |
| 2023-07-25 | 531-293-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | SCHUYLER | NE |
| 2023-07-25 | 531-293-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | SCHUYLER | NE |
| 2023-07-25 | 531-293-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | SCHUYLER | NE |
| 2023-07-24 | 531-304-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | PENDER | NE |
| 2023-07-24 | 531-304-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | PENDER | NE |
| 2023-07-24 | 531-304-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | PENDER | NE |
| 2023-07-24 | 531-304-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | PENDER | NE |
| 2023-07-24 | 531-304-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | PENDER | NE |
| 2023-03-07 | 531-330-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | WAYNE | NE |
| 2022-11-22 | 531-400-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | COLUMBUS | NE |
| 2022-11-09 | 531-302-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | TECUMSEH | NE |
| 2022-11-09 | 531-302-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | TECUMSEH | NE |
| 2022-11-08 | 531-240-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | ASHLAND | NE |
| 2022-11-08 | 531-246-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | SUPERIOR | NE |
| 2022-10-12 | 531-264-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | FIRTH | NE |
| 2022-09-26 | 531-353-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | WAHOO | NE |
| 2022-08-24 | 531-265-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | SOSIOUX CY | NE |
| 2022-06-29 | 531-666-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | FREMONT | NE |
| 2022-06-21 | 531-217-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | PLATTSMTH | NE |
| 2022-06-21 | 531-282-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | BEATRICE | NE |
| 2022-06-21 | 531-291-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | CRETE | NE |
| 2022-06-21 | 531-727-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | SEWARD | NE |
| 2022-05-10 | 531-268-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | ATKINSON | NE |
| 2022-04-04 | 531-310-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | LINCOLN | NE |
| 2021-10-20 | 531-257-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | VALENTINE | NE |
| 2021-10-20 | 531-257-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | VALENTINE | NE |
| 2021-10-19 | 531-776-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | AINSWORTH | NE |
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.