Unrecognized caller left no message. Reverse lookup shows it to be a privately listed land line. Could be legit or not. If it were important they would leave a message.

I decided to call this back and see what happened since there were no other entries. Maybe it was legit. What I got was a robot inviting me to enter my number if I wanted to be removed from "the callback list". It did not identify who the calling company was or what the purpose of the call was. To me this is a sure sign of a scam.