NumberResearchRecent thousands-block assignments
0 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, all time — NPA 417
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 |
|---|---|---|---|---|---|---|---|
| 2026-03-25 | 417-605-4XXX | 4000–4999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | SPRINGFLD | MO |
| 2023-09-29 | 417-387-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | EFORTSCOTT | MO |
| 2023-02-27 | 417-373-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | EPITTSBURG | MO |
| 2023-02-27 | 417-387-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | EFORTSCOTT | MO |
| 2022-04-11 | 417-290-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | SPRINGFLD | MO |
| 2022-04-11 | 417-290-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | SPRINGFLD | MO |
| 2021-09-08 | 417-373-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | EPITTSBURG | MO |
| 2020-01-28 | 417-244-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | EFORTSCOTT | MO |
| 2019-09-26 | 417-228-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | EFORTSCOTT | MO |
| 2019-09-26 | 417-238-5XXX | 5000–5999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | EPITTSBURG | MO |
| 2019-02-08 | 417-228-4XXX | 4000–4999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | EFORTSCOTT | MO |
| 2018-10-01 | 417-238-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | EPITTSBURG | MO |
| 2018-04-10 | 417-228-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | EFORTSCOTT | MO |
| 2018-04-10 | 417-238-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | EPITTSBURG | MO |
| 2017-04-19 | 417-228-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | EFORTSCOTT | MO |
| 2016-01-26 | 417-228-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | EFORTSCOTT | MO |
| 2016-01-26 | 417-238-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF MISSOURI, LLC - MO | 225F | EPITTSBURG | 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.