Unofficial 29920 Nintendo Wi-Fi Connection Unofficial 30000 Pokemon Netbattle Unofficial 30564/tcp Multiplicity : keyboard/mouse/clipboard sharing software Unofficial 31337/tcp Back Orifice - remote administration tool (often Trojan horse ) Unofficial 31337/tcp xc0r3 - xc0r3 security antivir port Unofficial 31415 ThoughtSignal - Server Communication Service (often Informational ) Unofficial 31456-31458/tcp TetriNET ports (in order: