NumberResearchThousands-blocks in 616-636
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 616-636 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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2021-02-04 | 616-636-0XXX | 0000–0999 | Assigned | ONVOY, LLCV - MI | 543C | SAND LAKE | MI |
| 2016-03-01 | 616-636-1XXX | 1000–1999 | Assigned | ONVOY, LLCV - MI | 543C | SAND LAKE | MI |
| 2016-03-01 | 616-636-2XXX | 2000–2999 | Assigned | ONVOY, LLCV - MI | 543C | SAND LAKE | MI |
| 2018-11-28 | 616-636-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF MICHIGAN, LLC - MI | 933G | SAND LAKE | MI |
| — | 616-636-4XXX | 4000–4999 | Reserved | MICHIGAN BELL TEL CO | 9323 | SAND LAKE | MI |
| — | 616-636-5XXX | 5000–5999 | Reserved | MICHIGAN BELL TEL CO | 9323 | SAND LAKE | MI |
| — | 616-636-6XXX | 6000–6999 | Available | SAND LAKE | MI | ||
| 2007-04-11 | 616-636-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | SAND LAKE | MI |
| — | 616-636-8XXX | 8000–8999 | Reserved | MICHIGAN BELL TEL CO | 9323 | SAND LAKE | MI |
| 2021-02-04 | 616-636-9XXX | 9000–9999 | Assigned | ONVOY, LLCV - MI | 543C | SAND LAKE | 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.