NumberResearchRecent thousands-block assignments
1 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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-08-25 | 641-674-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CENTERVL | IA |
| 2026-05-18 | 641-266-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ACKLEY | IA |
| 2025-12-05 | 641-630-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMPTON | IA |
| 2025-09-10 | 641-630-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMPTON | 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 |
| 2025-05-15 | 641-657-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMPTON | IA |
| 2025-03-20 | 641-503-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | MOUNT AYR | IA |
| 2025-03-20 | 641-991-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | OSCEOLA | IA |
| 2025-03-20 | 641-991-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | OSCEOLA | IA |
| 2025-01-21 | 641-657-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMPTON | IA |
| 2025-01-21 | 641-657-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMPTON | IA |
| 2024-11-18 | 641-657-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMPTON | IA |
| 2024-08-14 | 641-431-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | YALE | IA |
| 2024-08-13 | 641-572-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LEON | IA |
| 2024-08-13 | 641-671-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LENOX | IA |
| 2024-07-31 | 641-241-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | FONTANELLE | IA |
| 2024-07-31 | 641-674-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CENTERVL | IA |
| 2024-07-31 | 641-776-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CHARITON | IA |
| 2024-07-18 | 641-657-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMPTON | IA |
| 2024-07-18 | 641-657-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMPTON | IA |
| 2024-07-18 | 641-657-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | HAMPTON | IA |
| 2024-07-17 | 641-289-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | LAMONI | IA |
| 2024-07-17 | 641-317-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | KANAWHA | IA |
| 2024-07-17 | 641-327-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | WELLSBURG | IA |
| 2024-07-17 | 641-356-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | GLADBROOK | IA |
| 2024-07-17 | 641-372-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ROCKWELL | IA |
| 2024-07-17 | 641-643-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | MALCOM | IA |
| 2024-07-17 | 641-654-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | TOLEDO | IA |
| 2024-07-17 | 641-677-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SHEFFIELD | IA |
| 2024-07-17 | 641-705-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ELMA | IA |
| 2024-07-17 | 641-735-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | BUFFALOCTR | IA |
| 2024-07-17 | 641-737-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | STACYVILLE | IA |
| 2024-07-17 | 641-955-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | MONROE | IA |
| 2022-09-16 | 641-261-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | TOLEDO | IA |
| 2022-09-16 | 641-261-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | TOLEDO | IA |
| 2022-09-16 | 641-261-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | TOLEDO | IA |
| 2022-09-16 | 641-261-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | TOLEDO | IA |
| 2022-04-28 | 641-255-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MASON CITY | IA |
| 2022-04-28 | 641-261-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | TOLEDO | IA |
| 2022-04-28 | 641-261-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | TOLEDO | IA |
| 2022-04-28 | 641-261-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | TOLEDO | IA |
| 2022-01-13 | 641-517-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | OSKALOOSA | IA |
| 2018-08-09 | 641-417-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | NEWTON | IA |
| 2018-08-09 | 641-417-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | NEWTON | IA |
| 2018-08-09 | 641-417-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | NEWTON | IA |
| 2018-08-09 | 641-781-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | NEWTON | IA |
| 2018-08-09 | 641-781-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | NEWTON | IA |
| 2018-07-27 | 641-387-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | TOLEDO | IA |
| 2018-07-27 | 641-387-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | TOLEDO | 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.