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 641
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-08-11 | 641-575-6XXX | 6000–6999 | Assigned | MAHASKA COMMUNICATION GROUP, LLC - IA | 916A | OTTUMWA | IA |
| 2021-12-16 | 641-841-2XXX | 2000–2999 | Assigned | MAHASKA COMMUNICATION GROUP, LLC - IA | 916A | NEWTON | IA |
| 2021-03-09 | 641-659-6XXX | 6000–6999 | Assigned | MAHASKA COMMUNICATION GROUP, LLC - IA | 916A | GRINNELL | IA |
| 2019-11-13 | 641-622-6XXX | 6000–6999 | Assigned | MAHASKA COMMUNICATION GROUP, LLC - IA | 916A | SIGOURNEY | IA |
| 2019-01-04 | 641-501-6XXX | 6000–6999 | Assigned | MAHASKA COMMUNICATION GROUP, LLC - IA | 916A | MONTEZUMA | IA |
| 2016-01-22 | 641-637-6XXX | 6000–6999 | Assigned | MAHASKA COMMUNICATION GROUP, LLC - IA | 916A | NEW SHARON | IA |
| 2016-01-22 | 641-933-6XXX | 6000–6999 | Assigned | MAHASKA COMMUNICATION GROUP, LLC - IA | 916A | FREMONT | IA |
| 2016-01-19 | 641-969-6XXX | 6000–6999 | Assigned | MAHASKA COMMUNICATION GROUP, LLC - IA | 916A | EDDYVILLE | IA |
| 2015-01-29 | 641-676-9XXX | 9000–9999 | Assigned | MAHASKA COMMUNICATION GROUP, LLC - IA | 916A | OSKALOOSA | IA |
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.