NumberResearchThousands-blocks in 616-607
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 616-607 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 616 blocks
Most active assignees, all time — NPA 616
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 |
|---|---|---|---|---|---|---|---|
| — | 616-607-0XXX | 0000–0999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | GRANDHAVEN | MI |
| 2008-06-18 | 616-607-1XXX | 1000–1999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | GRANDHAVEN | MI |
| 2009-06-11 | 616-607-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | GRANDHAVEN | MI |
| 2007-11-27 | 616-607-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | GRANDHAVEN | MI |
| 2010-04-29 | 616-607-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | GRANDHAVEN | MI |
| 2009-10-21 | 616-607-5XXX | 5000–5999 | Assigned | CLEAR RATE COMMUNICATIONS, LLC | 046L | GRANDHAVEN | MI |
| 2010-06-01 | 616-607-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MI | 991E | GRANDHAVEN | MI |
| 2006-03-10 | 616-607-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GRANDHAVEN | MI |
| 2007-01-17 | 616-607-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | GRANDHAVEN | MI |
| — | 616-607-9XXX | 9000–9999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | GRANDHAVEN | MI |
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.