CIA flights

Hi,

I was watching the telly last night, and there was an interesting story about the CIA-flights over Europe -and in this case, The Netherlands-. The story seemed to revolve around a Gulfstream 5 with the registration number N379P, which seems to be on a long term lease to the US Government by some front company. I was wondering if there are any more know “CIA” planes like this one, civilian chartered but exclusively used by the US Government.