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 803
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-03-08 | 803-848-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | SUMTER | SC |
| 2022-10-27 | 803-830-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | COLUMBIA | SC |
| 2022-10-11 | 803-986-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | CHPNLTLMTS | SC |
| 2022-07-15 | 803-510-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | NO AUGUSTA | SC |
| 2022-07-15 | 803-585-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | ORANGEBURG | SC |
| 2021-08-06 | 803-558-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | ROCK HILL | SC |
| 2021-08-06 | 803-970-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | ROCK HILL | SC |
| 2021-08-06 | 803-970-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | ROCK HILL | SC |
| 2021-08-06 | 803-970-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | ROCK HILL | SC |
| 2021-08-03 | 803-310-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | CAMDEN | SC |
| 2021-08-03 | 803-677-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | CAMDEN | SC |
| 2021-05-27 | 803-756-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | LEXINGTON | SC |
| 2017-08-10 | 803-977-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | COLUMBIA | SC |
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.