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 660
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-08-29 | 660-266-5XXX | 5000–5999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | HOLLIDAY | MO |
| 2025-08-29 | 660-289-5XXX | 5000–5999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | PARIS | MO |
| 2024-06-14 | 660-291-7XXX | 7000–7999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | MADISON | MO |
| 2022-05-20 | 660-332-5XXX | 5000–5999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | LA PLATA | MO |
| 2020-07-09 | 660-456-6XXX | 6000–6999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | HIGBEE | MO |
| 2019-04-05 | 660-256-9XXX | 9000–9999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | ROTHVILLE | MO |
| 2015-08-31 | 660-288-4XXX | 4000–4999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | KEYTESVL | MO |
| 2015-08-31 | 660-548-2XXX | 2000–2999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | BRUNSWICK | MO |
| 2015-08-31 | 660-699-4XXX | 4000–4999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | CLARENCE | MO |
| 2014-11-19 | 660-433-8XXX | 8000–8999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | TIPTON | MO |
| 2013-12-19 | 660-752-9XXX | 9000–9999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | CHILLICOTH | MO |
| 2013-12-16 | 660-372-9XXX | 9000–9999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | MOBERLY | MO |
| 2013-11-25 | 660-258-9XXX | 9000–9999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | BROOKFIELD | MO |
| 2013-11-25 | 660-376-9XXX | 9000–9999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | MARCELINE | MO |
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.