NumberResearchThousands-blocks in 463-403
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 463-403 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
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-06-23 | 463-403-0XXX | 0000–0999 | Assigned | ONVOY, LLC - IN | 097D | FISHERS | IN |
| 2023-06-23 | 463-403-1XXX | 1000–1999 | Assigned | ONVOY, LLC - IN | 097D | FISHERS | IN |
| 2023-06-06 | 463-403-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IN | 097D | FISHERS | IN |
| 2024-03-29 | 463-403-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | FISHERS | IN |
| — | 463-403-4XXX | 4000–4999 | Available | FISHERS | IN | ||
| 2024-01-03 | 463-403-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | FISHERS | IN |
| 2024-01-26 | 463-403-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IN | 097D | FISHERS | IN |
| 2023-08-17 | 463-403-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF INDIANA, LLC - IN | 279F | FISHERS | IN |
| 2023-08-09 | 463-403-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IN | 097D | FISHERS | IN |
| 2023-04-07 | 463-403-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | FISHERS | IN |
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.