NumberResearchThousands-blocks in 412-450
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 412-450 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 412 blocks
Most active assignees, last 30 days — NPA 412
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 |
|---|---|---|---|---|---|---|---|
| 2008-11-21 | 412-450-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - PA | 002F | PTTSBGZON8 | PA |
| 2026-09-10 | 412-450-1XXX | 1000–1999 | Assigned | ONVOY, LLC - PA | 547E | PTTSBGZON8 | PA |
| 2021-06-29 | 412-450-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | PTTSBGZON8 | PA |
| 2021-06-24 | 412-450-3XXX | 3000–3999 | Assigned | ONVOY, LLC - PA | 547E | PTTSBGZON8 | PA |
| 2025-03-10 | 412-450-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PTTSBGZON8 | PA |
| — | 412-450-5XXX | 5000–5999 | Available | PTTSBGZON8 | PA | ||
| — | 412-450-6XXX | 6000–6999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PTTSBGZON8 | PA |
| 2021-06-29 | 412-450-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | PTTSBGZON8 | PA |
| 2007-09-21 | 412-450-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | PTTSBGZON8 | PA |
| — | 412-450-9XXX | 9000–9999 | Available | PTTSBGZON8 | PA |
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.