NumberResearchThousands-blocks in 517-759
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 517-759 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 517 blocks
Most active assignees, all time — NPA 517
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 517-759-0XXX | 0000–0999 | Reserved | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | ADRIAN | MI |
| 2006-08-22 | 517-759-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | ADRIAN | MI |
| 2007-01-11 | 517-759-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | ADRIAN | MI |
| 2007-01-16 | 517-759-3XXX | 3000–3999 | Assigned | DEERFIELD FARMERS' TELEPHONE COMPANY - MI | 558A | ADRIAN | MI |
| 2007-06-13 | 517-759-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | ADRIAN | MI |
| 2007-02-09 | 517-759-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ADRIAN | MI |
| 2010-01-12 | 517-759-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | ADRIAN | MI |
| 2007-02-06 | 517-759-7XXX | 7000–7999 | Assigned | ONVOY, LLCV - MI | 543C | ADRIAN | MI |
| 2007-02-08 | 517-759-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | ADRIAN | MI |
| — | 517-759-9XXX | 9000–9999 | Reserved | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | ADRIAN | MI |
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.