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 870
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-01-29 | 870-908-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | ARKADLPHIA | AR |
| 2024-01-29 | 870-908-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | ARKADLPHIA | AR |
| 2024-01-29 | 870-908-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | ARKADLPHIA | AR |
| 2022-11-17 | 870-493-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | DELL | AR |
| 2022-11-10 | 870-587-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | WYNNE | AR |
| 2022-11-10 | 870-809-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | WALNUT RDG | AR |
| 2022-11-09 | 870-753-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | HELENA | AR |
| 2022-11-09 | 870-806-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | BATESVILLE | AR |
| 2022-11-03 | 870-908-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | ARKADLPHIA | AR |
| 2022-11-03 | 870-908-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | ARKADLPHIA | AR |
| 2022-10-25 | 870-410-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | WILSON | AR |
| 2022-10-25 | 870-902-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | BLYTHEVL | AR |
| 2022-09-28 | 870-848-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | HOPE | AR |
| 2022-09-15 | 870-609-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | POCAHONTAS | AR |
| 2022-09-15 | 870-907-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | MAMMOTHSPG | AR |
| 2022-07-12 | 870-551-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | W MEMPHIS | AR |
| 2022-07-12 | 870-560-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | PARAGOULD | AR |
| 2022-07-12 | 870-974-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | JONESBORO | AR |
| 2022-06-13 | 870-912-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | NASHVILLE | AR |
| 2022-01-20 | 870-992-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | ALMYRA | AR |
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.