NumberResearchThousands-blocks in 463-837
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 463-837 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 463 blocks
Most active assignees, all time — NPA 463
New assignments by month
Sep 2026
Aug 2026
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Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-08-16 | 463-837-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - IN | 105F | MOORESVL | IN |
| 2024-01-11 | 463-837-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IN | 097D | MOORESVL | IN |
| 2023-06-06 | 463-837-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IN | 097D | MOORESVL | IN |
| 2024-01-11 | 463-837-3XXX | 3000–3999 | Assigned | ONVOY, LLC - IN | 097D | MOORESVL | IN |
| 2022-02-23 | 463-837-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | MOORESVL | IN |
| 2026-06-01 | 463-837-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IN | 097D | MOORESVL | IN |
| 2022-03-15 | 463-837-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IN | 7314 | MOORESVL | IN |
| 2025-03-13 | 463-837-7XXX | 7000–7999 | Assigned | ONVOY, LLC - IN | 097D | MOORESVL | IN |
| 2024-03-07 | 463-837-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IN | 097D | MOORESVL | IN |
| — | 463-837-9XXX | 9000–9999 | Available | MOORESVL | 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.