NumberResearchThousands-blocks in 308-251
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 308-251 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, last 30 days — NPA 308
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 |
|---|---|---|---|---|---|---|---|
| 2019-01-18 | 308-251-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE | 5807 | KEARNEY | NE |
| 2020-03-16 | 308-251-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - NE | 6263 | KEARNEY | NE |
| 2018-11-20 | 308-251-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NE | 3233 | KEARNEY | NE |
| 2022-06-13 | 308-251-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE | 5807 | KEARNEY | NE |
| 2019-11-25 | 308-251-4XXX | 4000–4999 | Assigned | ONVOY, LLC - NE | 549E | KEARNEY | NE |
| 2019-09-12 | 308-251-5XXX | 5000–5999 | Assigned | ALLO COMMUNICATIONS LLC | 907K | KEARNEY | NE |
| 2020-05-05 | 308-251-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NE | 3233 | KEARNEY | NE |
| 2019-01-22 | 308-251-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | KEARNEY | NE |
| 2026-09-09 | 308-251-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NE | 549E | KEARNEY | NE |
| 2026-09-09 | 308-251-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NE | 549E | KEARNEY | NE |
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.