Persistent little boogers, aren't they?
I have several "ST" callers, from several area codes ... none wish to talk to my answering machine ...
so ... blocked!
Called with a " ST" phone ID....
Rang 'bout 4 times and never left a message...
Computer search shows a downtown "Boiler Room" location....so, the little CALL BLOCKER DEVICE did it's thing.........good bye " ST" never see you again!