Who called from 2176256899

Called me at 11:00 at night.  I didn't answer, because I was sleeping.  didn't leave a message.

called three times 2:30pm, 2:47pm, and 2:53pm on Jan. 8th 2009

Called 2/12/2009, left no message.

called 2 days in a row, called back number no answer

I have 3 calls from this number.  Two of which i did not answer and no voicemail left.  I amswered the third and it was a man who knew my name, where I banked, my phone carrier and where I recycle my paper.  I tried to call the number back and it seemed to have gone no where.