NumberResearchThousands-blocks in 775-389
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 775-389 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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2010-07-23 | 775-389-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ELKO | NV |
| 2016-06-21 | 775-389-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV | 6458 | ELKO | NV |
| 2018-08-07 | 775-389-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | ELKO | NV |
| 2021-05-06 | 775-389-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ELKO | NV |
| 2018-10-29 | 775-389-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | ELKO | NV |
| 2020-07-13 | 775-389-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | ELKO | NV |
| 2020-10-14 | 775-389-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ELKO | NV |
| 2020-01-03 | 775-389-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ELKO | NV |
| 2012-03-23 | 775-389-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ELKO | NV |
| 2007-05-03 | 775-389-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ELKO | NV |
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.