the # ( or faked caller ID) just rang my # and hung up after 4 rings....

Called and answered, no one on the other line and hung up. Called again and rings a couple of time and error machine saying number has been disconnected or no longer in service.

Same miserable old scammers with a new number.  You block one, they come right back with another one.  It never ends.  Aggravating morons, the lot of them.

Called but no message left

They called again and again left no message.