I got it this morning.

I got it, too. It's a Salt Lake City, UT number. Maybe a bank?

The caller identified himself as doing a political survey. When I told him I had already voted, he said thanks, and hung up. Call was received at 5:46 PM West Coast time.

I got it twice this morning. Called it back. The recording said the company name is Western Wats, a survey company.
www.westernwats.com

I'd like to know how they get unlisted numbers to call, unless it's just random demon dialing.  Call just came in at 5:08 central time.  I don't answer calls I don't know, just let it go and then googled the number and found this site.  They don't leave voice mails.