Caller ID said "Michigan Call".  I didn't recognize the number or area code, so I let it go to the answering machine.  They didn't leave a message.  I Googled the number & the first result identified the number as originating in Carleton, Michigan & a registered user of that site had reported it as a spam number 6/20/14 @ 6:14 pm.  So, it appears to be a new scumball scammer making the rounds.

We live in south-central Michigan. 734 is our local area code. We didn't answer ... it was a recorded message asking about our TV provider, although that may have simply been to get their proverbial "foot in the door." I just added them to our blocked caller list (we have a Panasonic phone that allows 250 numbers to be blocked).

I don't know this number, never answered it and didn't leave a message. If it is spam glad I didn't answer. If I don't recognize any numbers I don't answer them.

Called at 10am on 8/23/14. Left no message. Caller ID reads Carleton, MI.

Carleton MI showed up on caller ID.  It was a recording for a political survey, prompting me to press 1 or 2 for which candidate I plan to vote for.