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 513
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 |
|---|---|---|---|---|---|---|---|
| 2024-02-29 | 513-927-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | MIDDLETOWN | OH |
| 2024-02-29 | 513-927-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | MIDDLETOWN | OH |
| 2024-02-29 | 513-927-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | MIDDLETOWN | OH |
| 2023-07-19 | 513-962-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | NEWTONSVL | OH |
| 2023-07-19 | 513-962-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | NEWTONSVL | OH |
| 2023-07-19 | 513-962-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | NEWTONSVL | OH |
| 2023-07-19 | 513-962-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | NEWTONSVL | OH |
| 2023-07-19 | 513-962-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | NEWTONSVL | OH |
| 2022-10-26 | 513-327-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | WILLIAMSBG | OH |
| 2022-08-24 | 513-998-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | LTL MIAMI | OH |
| 2022-08-06 | 513-676-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | BETHANY | OH |
| 2022-08-06 | 513-960-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | HAMILTON | OH |
| 2021-09-14 | 513-567-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | MIDDLETOWN | OH |
| 2021-09-14 | 513-567-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | MIDDLETOWN | OH |
| 2021-09-14 | 513-783-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | MIDDLETOWN | OH |
| 2021-05-14 | 513-286-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | CLERMONT | OH |
| 2021-05-14 | 513-286-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | CLERMONT | OH |
| 2021-05-14 | 513-286-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | CLERMONT | OH |
| 2017-11-10 | 513-493-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | CINCINNATI | OH |
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.