A short message left but not able to understand it.

I got called on a Sunday evening.  I heard some background noise, but the caller hung up without saying anything.

Calls frequently...never a message...listed on caller id as 'unknown name'. I would guess a telemarketer.
I do know some people in the 904 area code, and never sure if they might have gotten a new number, so checked here to see if it was a number that has been reported by others.  I feel better knowing that I haven't been ignorring someone I know, AND that I haven't gotten stuck on the phone with a sales rep.

Caller ID ...  Central Florida

Called @ 1550. Caller ID=UNKNOWN NAME. Answered because I live in this area code and some friends still have UNKNOWN NAME on Caller ID. No one answered and caller disconnected.