NumberResearchThousands-blocks in 580-352
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 580-352 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, all time — NPA 580
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 580-352-0XXX | 0000–0999 | Reserved | UNITED STATES CELLULAR - OK | 6272 | PONCA CITY | OK |
| — | 580-352-1XXX | 1000–1999 | Reserved | UNITED STATES CELLULAR - OK | 6272 | PONCA CITY | OK |
| 2008-01-04 | 580-352-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PONCA CITY | OK |
| 2008-02-06 | 580-352-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | PONCA CITY | OK |
| 2008-07-17 | 580-352-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PONCA CITY | OK |
| 2012-07-27 | 580-352-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - OK | 119F | PONCA CITY | OK |
| 2011-03-21 | 580-352-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | PONCA CITY | OK |
| 2014-02-24 | 580-352-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - OK | 119F | PONCA CITY | OK |
| — | 580-352-8XXX | 8000–8999 | Reserved | UNITED STATES CELLULAR - OK | 6272 | PONCA CITY | OK |
| 2022-06-10 | 580-352-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PONCA CITY | 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.