There are 8 Gulfstream Aerospace G-IV (G400) aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 2002 and 2004.
N1066W
2004 Gulfstream Aerospace G-IV (G400)
Las Vegas, NV
N271TV
2004 Gulfstream Aerospace G-IV (G400)
Tampa, FL
N516MC
2004 Gulfstream Aerospace G-IV (G400)
Great Neck, NY
N960JS
2004 Gulfstream Aerospace G-IV (G400)
Santa Monica, CA
N704SG
2003 Gulfstream Aerospace G-IV (G400)
Lexington, MA
N821GR
2003 Gulfstream Aerospace G-IV (G400)
Rockingham, NC
N888YG
2003 Gulfstream Aerospace G-IV (G400)
Las Vegas, NV
N176MG
2002 Gulfstream Aerospace G-IV (G400)
Missoula, MT