NumberResearchThousands-blocks in 910-591
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 910-591 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 910 blocks
Most active assignees, all time — NPA 910
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-07-31 | 910-591-0XXX | 0000–0999 | Assigned | ONVOY, LLC - NC | 638E | DUNN | NC |
| 2008-10-29 | 910-591-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NC | 3235 | DUNN | NC |
| 2010-05-18 | 910-591-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - NC | 998E | DUNN | NC |
| 2016-04-25 | 910-591-3XXX | 3000–3999 | Assigned | STARVISION, INC. - NC | 703H | DUNN | NC |
| 2014-03-13 | 910-591-4XXX | 4000–4999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DUNN | NC |
| 2010-09-10 | 910-591-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - NC | 8389 | DUNN | NC |
| — | 910-591-6XXX | 6000–6999 | Reserved | UNITED STATES CELLULAR - NC | 6282 | DUNN | NC |
| — | 910-591-7XXX | 7000–7999 | Reserved | UNITED STATES CELLULAR - NC | 6282 | DUNN | NC |
| — | 910-591-8XXX | 8000–8999 | Reserved | UNITED STATES CELLULAR - NC | 6282 | DUNN | NC |
| — | 910-591-9XXX | 9000–9999 | Reserved | UNITED STATES CELLULAR - NC | 6282 | DUNN | NC |
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.