N450SM

2008 Gulfstream Aerospace GIV-X (G450)

Fixed-wing, multi-engine · serial 4112

Valid registration

Registered with the FAA until Nov 30, 2032.

Registered owner

John R Miller Enterprises V LLC

Owner type: LLC
Address: 299 S Main St Ste 2450, Salt Lake City, UT 84111
Fleet: 2 aircraft registered to this owner

Aircraft

Make and model: Gulfstream Aerospace GIV-X (G450)
Year built: 2008
Serial number: 4112
Type: Fixed-wing, multi-engine · Land
Engines: 2 × Turbofan · Rolls-Royc TAY 611-8C · 13,850 lb thrust
Seats: 22
Weight class: 20,000 lb and over
Certification: Type certificated · Standard airworthiness (issued Feb 4, 2008)
Mode S code: A573B8 (the transponder's ICAO address, used by ADS-B flight trackers)
Registered since: Nov 5, 2025 · last FAA action Jul 16, 2026

What a Gulfstream IV looks likePhoto of a Gulfstream IV, not this aircraft: NOAA; http://www.photolib.noaa.gov/aboutc.html, Public domain, via Wikimedia Commons

Check the official record

This page mirrors the FAA's public registry file dated Oct 30, 2026. The FAA's own N-number inquiry is the official record, with the full owner address and documents.

Where is it now?

The registry doesn't show where an aircraft is flying. Flight trackers do, by tail number or Mode S code A573B8: FlightAware or ADS-B Exchange. Some owners block tracking through the FAA's privacy programs.

Something wrong?

Owners update their registration with the FAA Aircraft Registry; changes appear here the day after the FAA publishes them. Email admin@whoownsthisplane.com about how this site shows a record.