NumberResearchThousands-blocks in 580-379
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 580-379 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 580 blocks
Most active assignees, last 30 days — NPA 580
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 |
|---|---|---|---|---|---|---|---|
| 2007-11-20 | 580-379-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | ALTUS | OK |
| 2019-04-25 | 580-379-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF OKLAHOMA, LLC - OK | 384H | ALTUS | OK |
| 2014-10-03 | 580-379-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK | 5813 | ALTUS | OK |
| 2011-05-18 | 580-379-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ALTUS | OK |
| — | 580-379-4XXX | 4000–4999 | Reserved | SOUTHWESTERN BELL | 9533 | ALTUS | OK |
| 2008-10-21 | 580-379-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | ALTUS | OK |
| 2008-10-21 | 580-379-6XXX | 6000–6999 | Assigned | SOUTHWESTERN BELL | 9533 | ALTUS | OK |
| 2013-04-25 | 580-379-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ALTUS | OK |
| 2026-09-17 | 580-379-8XXX | 8000–8999 | Assigned | ONVOY, LLC - OK | 409F | ALTUS | OK |
| 2014-11-26 | 580-379-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ALTUS | 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.