This number called my house - I have a non-published, unlisted number - and they didn't leave a message when they reached my voice-mail. I have never, ever dealt with anyone in Casper, WY and have no reason to start now! If this # calls your house - Ignore them.
Called my home today and hung up on answer. Caller ID said Casper Wyoming.
Will ignore next time. Sure would be nice to know why someone would be going to this trouble. Perpaps they are just confirming valid households for some other purpose.