Silicon Era reports :
"Sega is finally pulling the plug on the Xbox version of Phantasy Star Online Episode I & II in Japan. The last day online play will be available is January 31, 2008, five years after the initial launch date. When this happens Phantasy Star Online: Blue Burst Episode IV will be the only version of original PSO that gamers in Japan can still play online. Please note that this announcement is only for Japan.
Sega has made no announcements about shutting down servers in other regions yet."