who is this?

called couple of times and when i called back.. says number error...

I got a call from this number. He is a man. surprisingly, he knows my full name. How?

I also received call from this no, just recently (20-11-2009) and the caller claimed that she's from Prudential. I told her I'm busy and & she said she'll call back another day.

i got the same call too from this number (03) 7806 6222, 3 miss call return call and not in services. strange.

I would like to know who called me, when I called back it says not in service