NumberResearchRecent thousands-block assignments
19 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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 417
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 |
|---|---|---|---|---|---|---|---|
| 2025-02-11 | 417-506-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | SPRINGFLD | MO |
| 2025-02-11 | 417-506-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | SPRINGFLD | MO |
| 2025-02-11 | 417-506-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | SPRINGFLD | MO |
| 2025-02-11 | 417-506-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | SPRINGFLD | MO |
| 2025-02-11 | 417-506-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | SPRINGFLD | MO |
| 2025-02-11 | 417-536-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | SPRINGFLD | MO |
| 2025-02-11 | 417-571-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | SPRINGFLD | MO |
| 2025-02-11 | 417-571-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | SPRINGFLD | MO |
| 2025-02-11 | 417-598-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BRANSON | MO |
| 2025-02-06 | 417-460-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | BRANSON | MO |
| 2025-01-30 | 417-263-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-263-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-263-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-266-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-266-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-320-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-320-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-320-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-320-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-331-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-331-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-331-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-412-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-412-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-412-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-412-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-412-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-412-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-460-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-30 | 417-460-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - MO | 6275 | BRANSON | MO |
| 2025-01-16 | 417-378-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | NEOSHO | MO |
| 2025-01-08 | 417-482-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | SPRINGFLD | MO |
| 2025-01-08 | 417-482-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | SPRINGFLD | MO |
| 2025-01-07 | 417-560-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | WEBB CITY | MO |
| 2025-01-06 | 417-243-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BRANSON | MO |
| 2025-01-03 | 417-238-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | EPITTSBURG | MO |
| 2024-12-20 | 417-244-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | EFORTSCOTT | MO |
| 2024-12-13 | 417-322-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LEBANON | MO |
| 2024-12-09 | 417-382-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | JOPLIN | MO |
| 2024-12-05 | 417-696-7XXX | 7000–7999 | Assigned | TWILIO INTERNATIONAL, INC. | 506J | BRANSON | MO |
| 2024-11-22 | 417-859-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | MARSHFIELD | MO |
| 2024-11-13 | 417-341-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | JACKET | MO |
| 2024-11-12 | 417-486-0XXX | 0000–0999 | Assigned | LEAP TELECOM, LLC | 616J | SPRINGFLD | MO |
| 2024-11-11 | 417-482-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | SPRINGFLD | MO |
| 2024-11-07 | 417-545-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | FORSYTH | MO |
| 2024-11-06 | 417-560-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | WEBB CITY | MO |
| 2024-10-24 | 417-482-3XXX | 3000–3999 | Assigned | WIRETAP TELECOM, LLC. | 733J | SPRINGFLD | MO |
| 2024-10-11 | 417-287-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | MT VIEW | MO |
| 2024-10-07 | 417-382-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | JOPLIN | MO |
| 2024-09-30 | 417-397-5XXX | 5000–5999 | Assigned | NUSO, LLC | 732J | SPRINGFLD | MO |
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.