In his book, Gravano mentionned that at the time of the Rampers, Gerry Pappa was connected to a guy nicknamed "Dutch" who was a made guy with the Genovese (I'm guessing Anthony Tuzzio ?). So I don't think, Pappa was ever considered an associate of the Colombos despite the fact that the Rampers were primarly connected to the Colombos.

Same thing with Louis Milito, a member of the Rampers who, early on, was connected to John Rizzo from the Gambinos.