NumberResearchThousands-blocks in 812-755
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 812-755 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 812 blocks
Most active assignees, all time — NPA 812
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2006-04-27 | 812-755-0XXX | 0000–0999 | Assigned | BLUERIVER COMMUNICATIONS, INC. - IN | 8943 | CAMPBELSBG | IN |
| — | 812-755-1XXX | 1000–1999 | Reserved | FRONTIER NORTH, INC. - IN | 0779 | CAMPBELSBG | IN |
| 2019-10-18 | 812-755-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IN | 097D | CAMPBELSBG | IN |
| 2019-04-22 | 812-755-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - IN | 105F | CAMPBELSBG | IN |
| — | 812-755-4XXX | 4000–4999 | Reserved | FRONTIER NORTH, INC. - IN | 0779 | CAMPBELSBG | IN |
| — | 812-755-5XXX | 5000–5999 | Reserved | FRONTIER NORTH, INC. - IN | 0779 | CAMPBELSBG | IN |
| 2005-02-28 | 812-755-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | CAMPBELSBG | IN |
| — | 812-755-7XXX | 7000–7999 | Assigned (pending) | CAMPBELSBG | IN | ||
| 2018-09-26 | 812-755-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IN | 097D | CAMPBELSBG | IN |
| — | 812-755-9XXX | 9000–9999 | Reserved | FRONTIER NORTH, INC. - IN | 0779 | CAMPBELSBG | IN |
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.