NumberResearchThousands-blocks in 507-217
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 507-217 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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2007-10-08 | 507-217-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | NEW ULM | MN |
| — | 507-217-1XXX | 1000–1999 | Reserved | METROPCS, INC. | 5562 | NEW ULM | MN |
| 2010-04-21 | 507-217-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | NEW ULM | MN |
| 2014-08-19 | 507-217-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | NEW ULM | MN |
| 2023-11-20 | 507-217-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | 5816 | NEW ULM | MN |
| 2011-08-05 | 507-217-5XXX | 5000–5999 | Assigned | NEW ULM TELECOM, INC. | 1442 | NEW ULM | MN |
| — | 507-217-6XXX | 6000–6999 | Reserved | AERIAL COMMUNICATIONS, INC. | 6701 | NEW ULM | MN |
| — | 507-217-7XXX | 7000–7999 | Reserved | AERIAL COMMUNICATIONS, INC. | 6701 | NEW ULM | MN |
| 2011-08-05 | 507-217-8XXX | 8000–8999 | Assigned | NEW ULM TELECOM, INC. | 1442 | NEW ULM | MN |
| — | 507-217-9XXX | 9000–9999 | Reserved | METROPCS, INC. | 5562 | NEW ULM | 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.