NumberResearchThousands-blocks in 607-575
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 607-575 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 607 blocks
Most active assignees, all time — NPA 607
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2021-11-17 | 607-575-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | MAINE | NY |
| 2022-01-21 | 607-575-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | MAINE | NY |
| — | 607-575-2XXX | 2000–2999 | Available | MAINE | NY | ||
| — | 607-575-3XXX | 3000–3999 | Available | MAINE | NY | ||
| — | 607-575-4XXX | 4000–4999 | Available | MAINE | NY | ||
| 2021-05-12 | 607-575-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MAINE | NY |
| 2023-04-07 | 607-575-6XXX | 6000–6999 | Assigned | PEERING HUB, INC. - NY | 818H | MAINE | NY |
| 2021-05-24 | 607-575-7XXX | 7000–7999 | Assigned | ONVOY, LLC- NY | 384C | MAINE | NY |
| 2024-08-16 | 607-575-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | MAINE | NY |
| 2022-11-22 | 607-575-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | MAINE | NY |
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.