NumberResearchThousands-blocks in 989-783
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 989-783 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 989 blocks
Most active assignees, all time — NPA 989
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2007-03-08 | 989-783-0XXX | 0000–0999 | Assigned | FRONTIER NORTH, INC. - MI | 0695 | ROSCOMMON | MI |
| — | 989-783-1XXX | 1000–1999 | Available | ROSCOMMON | MI | ||
| 2021-01-05 | 989-783-2XXX | 2000–2999 | Assigned | ONVOY, LLCV - MI | 543C | ROSCOMMON | MI |
| 2013-11-05 | 989-783-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7279 | ROSCOMMON | MI |
| 2021-01-05 | 989-783-4XXX | 4000–4999 | Assigned | ONVOY, LLCV - MI | 543C | ROSCOMMON | MI |
| 2021-01-05 | 989-783-5XXX | 5000–5999 | Assigned | ONVOY, LLCV - MI | 543C | ROSCOMMON | MI |
| 2020-08-31 | 989-783-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MI | 991E | ROSCOMMON | MI |
| 2015-04-03 | 989-783-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ROSCOMMON | MI |
| — | 989-783-8XXX | 8000–8999 | Available | ROSCOMMON | MI | ||
| 2020-05-15 | 989-783-9XXX | 9000–9999 | Assigned | ONVOY, LLCV - MI | 543C | ROSCOMMON | 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.