NumberResearchRecent thousands-block assignments
4 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, last 30 days — NPA 641
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-08-27 | 641-300-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | OSAGE | IA |
| 2025-08-27 | 641-310-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | MARSHALLTN | IA |
| 2025-08-27 | 641-324-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | NORTHWOOD | IA |
| 2025-08-27 | 641-334-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | ROSE HILL | IA |
| 2025-08-27 | 641-513-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MASON CITY | IA |
| 2025-08-27 | 641-575-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | OTTUMWA | IA |
| 2025-08-27 | 641-802-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | HAMPTON | IA |
| 2025-08-27 | 641-810-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | OSKALOOSA | IA |
| 2025-08-27 | 641-825-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | IOWA FALLS | IA |
| 2025-08-26 | 641-281-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | CHARLES CY | IA |
| 2025-08-26 | 641-924-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | GARNER | IA |
| 2025-07-25 | 641-657-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMPTON | IA |
| 2025-07-25 | 641-657-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMPTON | IA |
| 2025-07-23 | 641-222-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | BRITT | IA |
| 2025-07-23 | 641-266-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | ACKLEY | IA |
| 2025-07-10 | 641-796-0XXX | 0000–0999 | Assigned | GREENWAY COMMUNICATIONS L.L.C. - IA | 860F | REASNOR | IA |
| 2025-07-10 | 641-796-6XXX | 6000–6999 | Assigned | GREENWAY COMMUNICATIONS L.L.C. - IA | 860F | REASNOR | IA |
| 2025-07-10 | 641-796-7XXX | 7000–7999 | Assigned | GREENWAY COMMUNICATIONS L.L.C. - IA | 860F | REASNOR | IA |
| 2025-07-10 | 641-796-8XXX | 8000–8999 | Assigned | GREENWAY COMMUNICATIONS L.L.C. - IA | 860F | REASNOR | IA |
| 2025-07-10 | 641-796-9XXX | 9000–9999 | Assigned | GREENWAY COMMUNICATIONS L.L.C. - IA | 860F | REASNOR | IA |
| 2025-06-10 | 641-726-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MELROSE | IA |
| 2025-06-10 | 641-966-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BLADENSBG | IA |
| 2025-06-10 | 641-977-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NEW SHARON | IA |
| 2025-06-02 | 641-440-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | CLEAR LAKE | IA |
| 2025-06-02 | 641-541-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | SIGOURNEY | IA |
| 2025-05-27 | 641-905-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | MELBOURNE | IA |
| 2025-05-15 | 641-657-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMPTON | IA |
| 2025-05-07 | 641-448-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MELCHER | IA |
| 2025-05-07 | 641-600-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LIBERTYVL | IA |
| 2025-05-07 | 641-629-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PELLA | IA |
| 2025-05-07 | 641-713-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ST ANSGAR | IA |
| 2025-05-07 | 641-868-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | STEAMBOTRK | IA |
| 2025-05-07 | 641-955-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MONROE | IA |
| 2025-05-02 | 641-204-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | PELLA | IA |
| 2025-05-02 | 641-353-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | KENSETT | IA |
| 2025-05-02 | 641-400-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HUMESTON | IA |
| 2025-05-02 | 641-416-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | PELLA | IA |
| 2025-05-02 | 641-416-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | PELLA | IA |
| 2025-05-02 | 641-416-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | PELLA | IA |
| 2025-05-02 | 641-416-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | PELLA | IA |
| 2025-05-02 | 641-613-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | PELLA | IA |
| 2025-05-02 | 641-613-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | PELLA | IA |
| 2025-05-02 | 641-613-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | PELLA | IA |
| 2025-05-02 | 641-613-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | PELLA | IA |
| 2025-05-02 | 641-613-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | PELLA | IA |
| 2025-05-02 | 641-619-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | PELLA | IA |
| 2025-05-02 | 641-619-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | PELLA | IA |
| 2025-05-02 | 641-619-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | PELLA | IA |
| 2025-05-02 | 641-619-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | PELLA | IA |
| 2025-05-02 | 641-619-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | PELLA | IA |
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.