>>36
Those are transport layer of which they are all obviously covered. Application layer is a different story:
▶ Obviously every online multiplayer game out there, but we'll say that these don't count.
▶ Most (all?) P2P protocols that I'm aware of, I'm surprised myself here, a search for `bittorrent rfc' brings up a student project (to create a RFC?), the Wikipedia page just because its Wikipedia, a forum post of a dude complaining about the lack of a bittorrent RFC, and then whatever.
▶ Every IM protocol other than XMPP, that I'm aware of.
▶ All sorts of random shit like Flash player's use of TCP port 843.
There's likely more but thats what was off the top of my head at this point.