NumberResearchThousands-blocks in 641-924
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026
The ten 1,000-number thousand-blocks inside prefix 641-924 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 641 blocks
Most active assignees, all time — NPA 641
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2010-03-11 | 641-924-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | GARNER | IA |
| 2025-08-26 | 641-924-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | GARNER | IA |
| 2014-12-01 | 641-924-2XXX | 2000–2999 | Assigned | NORTHLAND COMMUNICATIONS, INC. - IA | 068H | GARNER | IA |
| — | 641-924-3XXX | 3000–3999 | Available | GARNER | IA | ||
| 2012-12-27 | 641-924-4XXX | 4000–4999 | Assigned | ONVOY, LLC - IA | 221F | GARNER | IA |
| 2012-12-27 | 641-924-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IA | 221F | GARNER | IA |
| 2017-02-28 | 641-924-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GARNER | IA |
| 2011-01-26 | 641-924-7XXX | 7000–7999 | Assigned | WINNEBAGO COOPERATIVE TELEPHONE ASSOCIATION - IA | 6103 | GARNER | IA |
| 2018-03-12 | 641-924-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | GARNER | IA |
| — | 641-924-9XXX | 9000–9999 | Available | GARNER | 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.