NumberResearchRecent thousands-block assignments
2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 |
|---|---|---|---|---|---|---|---|
| 2026-09-03 | 406-918-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | LIBBY | MT |
| 2026-09-01 | 406-930-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | BIG TIMBER | MT |
| 2026-08-13 | 406-621-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | FORTBENTON | MT |
| 2026-08-13 | 406-677-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | SEELEYLAKE | MT |
| 2026-08-04 | 406-425-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | RED LODGE | MT |
| 2026-06-22 | 406-366-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | LEWISTOWN | MT |
| 2026-06-10 | 406-366-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | LEWISTOWN | MT |
| 2026-03-23 | 406-703-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | COLUMBUS | MT |
| 2026-02-17 | 406-633-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | LAUREL | MT |
| 2026-02-04 | 406-357-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | CHINOOK | MT |
| 2026-01-09 | 406-231-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | GREATFALLS | MT |
| 2025-12-19 | 406-517-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | LIVINGSTON | MT |
| 2025-12-19 | 406-517-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | LIVINGSTON | MT |
| 2025-11-13 | 406-955-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | KALISPELL | MT |
| 2025-11-12 | 406-916-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | HELENA | MT |
| 2025-11-12 | 406-953-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | HARDIN | MT |
| 2025-11-04 | 406-931-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | BIG TIMBER | MT |
| 2025-07-14 | 406-516-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | LAUREL | MT |
| 2025-04-22 | 406-677-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | SEELEYLAKE | MT |
| 2025-04-22 | 406-815-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | RED LODGE | MT |
| 2025-02-13 | 406-536-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | BOZEMAN | MT |
| 2025-02-13 | 406-818-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | RED LODGE | MT |
| 2025-02-03 | 406-217-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | GREATFALLS | MT |
| 2025-02-03 | 406-517-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | LIVINGSTON | MT |
| 2025-02-03 | 406-610-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | MISSOULA | MT |
| 2025-02-03 | 406-677-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | SEELEYLAKE | MT |
| 2025-01-31 | 406-324-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | HELENA | MT |
| 2025-01-10 | 406-425-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | RED LODGE | MT |
| 2024-12-11 | 406-217-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | GREATFALLS | MT |
| 2024-12-06 | 406-516-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | LAUREL | MT |
| 2024-11-14 | 406-517-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | LIVINGSTON | MT |
| 2024-10-03 | 406-677-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | SEELEYLAKE | MT |
| 2024-09-04 | 406-426-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | RED LODGE | MT |
| 2024-08-30 | 406-513-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | HELENA | MT |
| 2024-08-30 | 406-513-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | HELENA | MT |
| 2024-08-15 | 406-405-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | LIBBY | MT |
| 2024-08-13 | 406-699-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | HARDIN | MT |
| 2024-08-13 | 406-955-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | KALISPELL | MT |
| 2024-06-13 | 406-324-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | HELENA | MT |
| 2024-06-07 | 406-517-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | LIVINGSTON | MT |
| 2024-06-05 | 406-930-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | BIG TIMBER | MT |
| 2024-05-08 | 406-677-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | SEELEYLAKE | MT |
| 2023-12-20 | 406-405-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | LIBBY | MT |
| 2023-12-20 | 406-421-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | SOMILES CY | MT |
| 2023-12-20 | 406-930-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | BIG TIMBER | MT |
| 2023-12-01 | 406-502-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | HELENA | MT |
| 2023-12-01 | 406-516-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | LAUREL | MT |
| 2023-11-30 | 406-481-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | MISSOULA | MT |
| 2023-11-30 | 406-833-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | RONAN | MT |
| 2023-11-28 | 406-410-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | HELENA | MT |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.