NumberResearchThousands-blocks in 507-666
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 507-666 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
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-06-29 | 507-666-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | WORTHINGTN | MN |
| 2018-09-19 | 507-666-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | WORTHINGTN | MN |
| — | 507-666-2XXX | 2000–2999 | Available | WORTHINGTN | MN | ||
| 2021-02-04 | 507-666-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MN | 184D | WORTHINGTN | MN |
| 2024-01-31 | 507-666-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | WORTHINGTN | MN |
| 2019-05-22 | 507-666-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MN | 184D | WORTHINGTN | MN |
| 2017-11-27 | 507-666-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MN | 184D | WORTHINGTN | MN |
| 2019-05-22 | 507-666-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MN | 184D | WORTHINGTN | MN |
| 2021-11-04 | 507-666-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | WORTHINGTN | MN |
| 2021-05-25 | 507-666-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WORTHINGTN | MN |
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.