NumberResearchThousands-blocks in 860-758
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 860-758 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 860 blocks
Most active assignees, all time — NPA 860
New assignments by month
Sep 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2011-05-04 | 860-758-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CT | 199F | WINDSORLKS | CT |
| 2025-03-13 | 860-758-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CT | 639C | WINDSORLKS | CT |
| 2020-04-24 | 860-758-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CT | 639C | WINDSORLKS | CT |
| 2020-04-24 | 860-758-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CT | 639C | WINDSORLKS | CT |
| 2006-06-22 | 860-758-4XXX | 4000–4999 | Assigned | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | 9147 | WINDSORLKS | CT |
| 2017-10-04 | 860-758-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | WINDSORLKS | CT |
| 2017-03-09 | 860-758-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CT | 639C | WINDSORLKS | CT |
| 2007-08-27 | 860-758-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | WINDSORLKS | CT |
| 2019-02-28 | 860-758-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CT | 639C | WINDSORLKS | CT |
| 2025-04-16 | 860-758-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CT | 639C | WINDSORLKS | CT |
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.