Who called from 6084446459

Claimed to be manager for company new to area, offering
"employment opportunities."
Have received  many such calls, all from different numbers.

I received the same called listed above from the same number. The person who left the message said his name was Shane Schuster and that he's a regional manager from an expanding company.

Same here.  "Shane Shuster, a Regional Manager of a company expanding in the Madison area."

Same here.  Message today from a "Dave Miller", regional manager for an expanding company (never named).  He called from Einstein PCS cell phone 608-446-6955.

got a call from Shane Schuster re: "company that is expanding" - claimed "your business card came across my desk.  Never identified the company