port - (PC Version) Unofficial 29900 (through 29901) Nintendo Wi-Fi Connection Unofficial 29920 Nintendo Wi-Fi Connection Unofficial 31337/tcp Back Orifice - remote administration tool (often Trojan horse ) Unofficial 31456-31458/tcp TetriNET ports (in order: irc, game, and spectating) Unofficial 32245/TCP MMTSG-mutualed over MMT (encrypted transmission) Unofficial (Dynamic/Private) Ports 49152 to 65535 By