These are portranges used for DirectPlay protocol. DP is used by most windows games for multiplayer. Ex: Baldur's Gate II, Icewind Dale II, DungeonSiedge (probably all Micro$oft games).

//form here//
ACTIVE="Yes"
TCP="2300:2400*2300:2400"
TCP="47624*47624"
TCP="2234*2234"
TCP="6667*6667"
TCP="28800:28900*28800:28900"
TCP="13139*13139"
UDP="2300:2400*2300:2400"
UDP="47624*47624"
UDP="2234*2234"
UDP="6667*6667"
UDP="28800:28900*28800:28900"
UDP="13139*13139"
ICMP=""
GRE=""
BROADCAST="No"
COMMENT="DirectPlay protocol is used by most *new        windows games, ex. most of BlackIsle or         Micro$oft games.                                                                                                                                "
AH=""
ESP=""
//to here//