NumberResearchThousands-blocks in 308-745
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026
The ten 1,000-number thousand-blocks inside prefix 308-745 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 308 blocks
Most active assignees, all time — NPA 308
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 308-745-0XXX | 0000–0999 | Reserved | QWEST CORPORATION | 9631 | LOUP CITY | NE |
| — | 308-745-1XXX | 1000–1999 | Reserved | QWEST CORPORATION | 9631 | LOUP CITY | NE |
| 2009-09-03 | 308-745-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | LOUP CITY | NE |
| 2021-03-03 | 308-745-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NE | 549E | LOUP CITY | NE |
| 2019-11-25 | 308-745-4XXX | 4000–4999 | Assigned | ONVOY, LLC - NE | 549E | LOUP CITY | NE |
| 2007-04-17 | 308-745-5XXX | 5000–5999 | Assigned | N.E. COLORADO CELLULAR, INC. | 6874 | LOUP CITY | NE |
| 2021-03-03 | 308-745-6XXX | 6000–6999 | Assigned | ONVOY, LLC - NE | 549E | LOUP CITY | NE |
| 2025-01-03 | 308-745-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LOUP CITY | NE |
| 2020-10-13 | 308-745-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LOUP CITY | NE |
| 2022-12-30 | 308-745-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NE | 3233 | LOUP CITY | NE |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.