NumberResearchThousands-blocks in 812-721
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 812-721 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
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2006-10-20 | 812-721-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | SPURGEON | IN |
| — | 812-721-1XXX | 1000–1999 | Reserved | FRONTIER NORTH, INC. - IN | 0779 | SPURGEON | IN |
| 2018-09-13 | 812-721-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IN | 097D | SPURGEON | IN |
| 2021-10-25 | 812-721-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SPURGEON | IN |
| 2019-07-09 | 812-721-4XXX | 4000–4999 | Assigned | ONVOY, LLC - IN | 097D | SPURGEON | IN |
| 2023-03-29 | 812-721-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SPURGEON | IN |
| — | 812-721-6XXX | 6000–6999 | Assigned (pending) | SPURGEON | IN | ||
| 2009-10-28 | 812-721-7XXX | 7000–7999 | Assigned | FULLNET ADVANCED COMMUNICATIONS, INC. - IN | 068F | SPURGEON | IN |
| 2019-07-09 | 812-721-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IN | 097D | SPURGEON | IN |
| 2020-06-17 | 812-721-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | SPURGEON | 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.