NumberResearchThousands-blocks in 775-574
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 775-574 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 775 blocks
Most active assignees, all time — NPA 775
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 775-574-0XXX | 0000–0999 | Reserved | NEVADA BELL | 9742 | NIXON | NV |
| — | 775-574-1XXX | 1000–1999 | Reserved | NEVADA BELL | 9742 | NIXON | NV |
| 2014-04-09 | 775-574-2XXX | 2000–2999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | NIXON | NV |
| 2017-03-15 | 775-574-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NV | 029F | NIXON | NV |
| 2005-06-25 | 775-574-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | NIXON | NV |
| — | 775-574-5XXX | 5000–5999 | Available | NIXON | NV | ||
| — | 775-574-6XXX | 6000–6999 | Available | NIXON | NV | ||
| 2008-02-20 | 775-574-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NIXON | NV |
| 2008-11-03 | 775-574-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - NV | 075F | NIXON | NV |
| 2020-12-14 | 775-574-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | NIXON | NV |
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.