called me too said was very important

just got a call from this number... anyone know who it is?

this phone is anoing. introduced himself as Mark...
wants to find right away  & want to talk to my wife.
I asked him to leave a message, no, He is going to a meeting...does not have time....
Is it me her husband... Does not want leave a back phone #.
But seems he knows my wifes first name and my as well.

called 11-10-2010 at 2:14 pm
810-244-4231

I also received a call for a 2nd time from this number.  Never leaves a message.

since nov.2 they have called me at least 6 times, usually a  call in the morning and 2 on the evening. never leaves a message. when i looked it up ONLINE IT REPORTS THAT IT IS A LANDLINE FROM FLINT BUT NO FURTHER INFORMATION.