NumberResearchThousands-blocks in 405-939
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 405-939 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 405 blocks
Most active assignees, all time — NPA 405
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2015-04-29 | 405-939-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - OK | 119F | PERKINS | OK |
| 2016-01-29 | 405-939-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF OKLAHOMA, LLC - OK | 384H | PERKINS | OK |
| 2018-04-05 | 405-939-2XXX | 2000–2999 | Assigned | ONVOY, LLC - OK | 409F | PERKINS | OK |
| 2014-02-06 | 405-939-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | PERKINS | OK |
| 2018-10-19 | 405-939-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | PERKINS | OK |
| 2016-06-20 | 405-939-5XXX | 5000–5999 | Assigned | ONVOY, LLC - OK | 409F | PERKINS | OK |
| 2016-06-20 | 405-939-6XXX | 6000–6999 | Assigned | ONVOY, LLC - OK | 409F | PERKINS | OK |
| 2021-03-30 | 405-939-7XXX | 7000–7999 | Assigned | ONVOY, LLC - OK | 409F | PERKINS | OK |
| 2016-11-14 | 405-939-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA OK - LLC | 530C | PERKINS | OK |
| 2026-03-06 | 405-939-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | PERKINS | OK |
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.