NumberResearchThousands-blocks in 405-459
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 405-459 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
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Jun 2026
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Apr 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2008-11-05 | 405-459-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - OK | 119F | POCASSET | OK |
| — | 405-459-1XXX | 1000–1999 | Reserved | SOUTHWESTERN BELL | 9533 | POCASSET | OK |
| 2026-03-06 | 405-459-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | POCASSET | OK |
| — | 405-459-3XXX | 3000–3999 | Available | POCASSET | OK | ||
| 2012-03-21 | 405-459-4XXX | 4000–4999 | Assigned | CHICKASAW TELECOMMUNICAIONS SERVICES, INC. | 4630 | POCASSET | OK |
| 2011-08-15 | 405-459-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | POCASSET | OK |
| — | 405-459-6XXX | 6000–6999 | Reserved | SOUTHWESTERN BELL | 9533 | POCASSET | OK |
| 2013-08-19 | 405-459-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - OK | 119F | POCASSET | OK |
| 2015-04-29 | 405-459-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - OK | 119F | POCASSET | OK |
| — | 405-459-9XXX | 9000–9999 | Reserved | SOUTHWESTERN BELL | 9533 | POCASSET | 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.