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 406
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 |
|---|---|---|---|---|---|---|---|
| 2026-08-26 | 406-447-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HELENA | MT |
| 2026-04-22 | 406-677-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SEELEYLAKE | MT |
| 2026-03-13 | 406-514-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CULBERTSON | MT |
| 2026-03-13 | 406-610-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MISSOULA | MT |
| 2026-03-10 | 406-961-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HAMILTON | MT |
| 2026-01-29 | 406-268-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GREATFALLS | MT |
| 2026-01-15 | 406-918-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LIBBY | MT |
| 2025-12-18 | 406-350-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LEWISTOWN | MT |
| 2025-12-18 | 406-391-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CUT BANK | MT |
| 2025-12-18 | 406-482-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SIDNEY | MT |
| 2025-12-04 | 406-618-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MISSOULA | MT |
| 2025-09-10 | 406-382-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SUPERIOR | MT |
| 2025-09-10 | 406-638-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HARDIN | MT |
| 2025-08-20 | 406-536-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BOZEMAN | MT |
| 2025-08-20 | 406-536-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BOZEMAN | MT |
| 2025-08-19 | 406-440-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HELENA | MT |
| 2025-07-30 | 406-610-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MISSOULA | MT |
| 2025-05-15 | 406-536-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BOZEMAN | MT |
| 2025-05-07 | 406-375-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HAMILTON | MT |
| 2025-05-01 | 406-559-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANACONDA | MT |
| 2025-04-29 | 406-687-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | W GLENDIVE | MT |
| 2025-04-29 | 406-687-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | W GLENDIVE | MT |
| 2025-04-29 | 406-955-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | KALISPELL | MT |
| 2025-04-29 | 406-955-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | KALISPELL | MT |
| 2025-04-29 | 406-955-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | KALISPELL | MT |
| 2025-01-14 | 406-593-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BUTTE | MT |
| 2025-01-14 | 406-593-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BUTTE | MT |
| 2025-01-13 | 406-517-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LIVINGSTON | MT |
| 2025-01-06 | 406-514-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CULBERTSON | MT |
| 2025-01-06 | 406-610-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MISSOULA | MT |
| 2025-01-06 | 406-687-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | W GLENDIVE | MT |
| 2024-12-23 | 406-617-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BILLINGS | MT |
| 2024-12-20 | 406-216-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GREATFALLS | MT |
| 2024-12-20 | 406-482-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SIDNEY | MT |
| 2024-12-18 | 406-536-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BOZEMAN | MT |
| 2024-12-16 | 406-242-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | THOMPSNFLS | MT |
| 2024-11-24 | 406-576-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CONRAD | MT |
| 2024-11-24 | 406-940-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MOLT | MT |
| 2024-10-31 | 406-417-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HELENA | MT |
| 2024-10-14 | 406-660-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DILLON | MT |
| 2024-10-14 | 406-964-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GREATFALLS | MT |
| 2024-06-26 | 406-818-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RED LODGE | MT |
| 2024-04-10 | 406-922-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BOZEMAN | MT |
| 2023-12-11 | 406-955-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | KALISPELL | MT |
| 2023-12-11 | 406-955-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | KALISPELL | MT |
| 2023-11-27 | 406-964-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GREATFALLS | MT |
| 2023-10-23 | 406-417-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HELENA | MT |
| 2023-09-11 | 406-729-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WILSALL | MT |
| 2023-09-11 | 406-804-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GARDINER | MT |
| 2023-09-06 | 406-491-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BUTTE | MT |
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.