NumberResearchThousands-blocks in 417-391
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026
The ten 1,000-number thousand-blocks inside prefix 417-391 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 417 blocks
Most active assignees, all time — NPA 417
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-07-07 | 417-391-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | ELDORDOSPG | MO |
| 2022-02-22 | 417-391-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | ELDORDOSPG | MO |
| 2021-02-04 | 417-391-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | ELDORDOSPG | MO |
| 2012-09-14 | 417-391-3XXX | 3000–3999 | Assigned | TELECOM NORTH AMERICA MOBILE INC | 955F | ELDORDOSPG | MO |
| — | 417-391-4XXX | 4000–4999 | Reserved | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | ELDORDOSPG | MO |
| 2023-02-03 | 417-391-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | ELDORDOSPG | MO |
| — | 417-391-6XXX | 6000–6999 | Reserved | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | ELDORDOSPG | MO |
| 2014-05-14 | 417-391-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ELDORDOSPG | MO |
| 2019-11-01 | 417-391-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MO | 093F | ELDORDOSPG | MO |
| 2026-07-02 | 417-391-9XXX | 9000–9999 | Assigned | TELECOM NORTH AMERICA MOBILE INC | 955F | ELDORDOSPG | 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.