Who called from 9378866564

Got a call from this number. No voice message left.

Have also received calls from this number on 12/12/12, and 12/10/12. I have answered and had no one speak.

Have received many calls from this number and they do not speak or leave a message.  Today they did answer and said they had dialed the wrong number.

Have received numerous calls from this #; who ever it is, they never leave a message.  I answered once but it took a while to get a response so I hung up, thinking it was a solicitation call.