i'm in the army stationed in korea and when i use a calling card to call my parents from my cell phone (or anyone else with caller id), it always shows up as "rodney trees" on their caller id. if you have a friend or family stationed in korea, pick up. it could be them calling you. also, if they're calling really early in the morning (2am for example), it could be a normal time for them (afternoon) due to the time difference, and maybe they just forgot to do the math.
hope this helps.
Like with the other complaints, my son is also in Korea. I have received numerous calls from this number on my cell phone. I don't pick up unknown calls. It is a real pain and I want it to stop.