NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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 839
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-03-08 | 839-333-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | SUMTER | SC |
| 2024-03-08 | 839-867-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | SUMTER | SC |
| 2024-03-08 | 839-867-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | SUMTER | SC |
| 2024-03-07 | 839-275-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | ROCK HILL | SC |
| 2024-03-07 | 839-275-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | ROCK HILL | SC |
| 2024-03-07 | 839-275-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | ROCK HILL | SC |
| 2024-03-07 | 839-275-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | ROCK HILL | SC |
| 2024-02-02 | 839-261-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | CAMDEN | SC |
| 2024-02-02 | 839-261-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | CAMDEN | SC |
| 2024-02-02 | 839-261-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | CAMDEN | SC |
| 2024-02-02 | 839-261-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | CAMDEN | SC |
| 2024-02-02 | 839-262-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | COLUMBIA | SC |
| 2024-02-02 | 839-262-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | COLUMBIA | SC |
| 2024-02-02 | 839-262-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | COLUMBIA | SC |
| 2024-02-02 | 839-262-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | COLUMBIA | SC |
| 2024-02-02 | 839-262-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | COLUMBIA | SC |
| 2022-12-19 | 839-867-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | SUMTER | SC |
| 2022-11-07 | 839-272-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | BLACKVILLE | SC |
| 2022-10-28 | 839-845-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | EASTOVER | SC |
| 2022-10-28 | 839-866-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | GRANITEVL | SC |
| 2022-10-28 | 839-868-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | YORK | SC |
| 2022-10-27 | 839-224-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | COLUMBIA | SC |
| 2022-10-27 | 839-224-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | COLUMBIA | SC |
| 2022-10-11 | 839-215-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | DENMARK | SC |
| 2022-10-11 | 839-876-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | PROSPERITY | SC |
| 2022-07-15 | 839-226-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | NEWBERRY | SC |
| 2022-07-15 | 839-746-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | AIKEN | SC |
| 2022-07-15 | 839-777-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | EDGEFIELD | SC |
| 2022-07-15 | 839-846-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | BATESBURG | SC |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.