NumberResearchThousands-blocks in 507-774
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 507-774 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 |
|---|---|---|---|---|---|---|---|
| 2008-11-04 | 507-774-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MN | 980E | OWATONNA | MN |
| 2013-08-27 | 507-774-1XXX | 1000–1999 | Assigned | MIDCONTINENT COMMUNICATIONS - MN | 429A | OWATONNA | MN |
| 2016-10-04 | 507-774-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | OWATONNA | MN |
| 2011-02-11 | 507-774-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MN | 7783 | OWATONNA | MN |
| — | 507-774-4XXX | 4000–4999 | Available | OWATONNA | MN | ||
| 2006-10-19 | 507-774-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | OWATONNA | MN |
| — | 507-774-6XXX | 6000–6999 | Available | OWATONNA | MN | ||
| — | 507-774-7XXX | 7000–7999 | Reserved | QWEST CORPORATION | 9631 | OWATONNA | MN |
| — | 507-774-8XXX | 8000–8999 | Reserved | QWEST CORPORATION | 9631 | OWATONNA | MN |
| 2011-08-26 | 507-774-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | OWATONNA | 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.