NumberResearchThousands-blocks in 507-596
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 507-596 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 507 blocks
Most active assignees, all time — NPA 507
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2010-03-24 | 507-596-0XXX | 0000–0999 | Assigned | MCC TELEPHONY OF MINNESOTA, LLC - MN | 719F | FAIRFAX | MN |
| 2017-05-01 | 507-596-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MN | 184D | FAIRFAX | MN |
| 2021-02-08 | 507-596-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MN | 184D | FAIRFAX | MN |
| 2025-08-06 | 507-596-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FAIRFAX | MN |
| 2022-12-21 | 507-596-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MN | 8405 | FAIRFAX | MN |
| 2019-08-13 | 507-596-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MN | 184D | FAIRFAX | MN |
| — | 507-596-6XXX | 6000–6999 | Available | FAIRFAX | MN | ||
| 2014-12-18 | 507-596-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MN | 184D | FAIRFAX | MN |
| 2020-06-22 | 507-596-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | FAIRFAX | MN |
| 2018-04-20 | 507-596-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - MN | 980E | FAIRFAX | MN |
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.