NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 775
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-03-22 | 775-339-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | STATELINE | NV |
| 2022-03-22 | 775-339-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | STATELINE | NV |
| 2018-10-29 | 775-389-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | ELKO | NV |
| 2015-06-23 | 775-485-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | GOLDFIELD | NV |
| 2014-04-09 | 775-574-2XXX | 2000–2999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | NIXON | NV |
| 2013-01-02 | 775-554-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | GLENBROOK | NV |
| 2010-05-25 | 775-737-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | RENO | NV |
| 2010-03-10 | 775-241-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | CARSON PL | NV |
| 2010-03-10 | 775-266-2XXX | 2000–2999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | TOPAZ LAKE | NV |
| 2010-03-10 | 775-302-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | FERNLEY | NV |
| 2010-03-10 | 775-461-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | CARSONCITY | NV |
| 2010-03-10 | 775-463-8XXX | 8000–8999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | YERINGTON | NV |
| 2010-03-10 | 775-465-6XXX | 6000–6999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | SMITH VLY | NV |
| 2010-03-10 | 775-589-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | STATELINE | NV |
| 2010-03-10 | 775-783-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | GARDNERVL | NV |
| 2010-03-10 | 775-833-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | CRYSTALBAY | NV |
| 2010-03-10 | 775-847-8XXX | 8000–8999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | VIRGINIACY | NV |
| 2008-10-31 | 775-737-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - NV | 811D | RENO | 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.