Who called from 9013236527

call didn't leave message

called and left no message.
Caller ID says Memphis Shelby.
No answer when I call back
Telephone company says it's unlisted

Called several times and left no message.  Rings, no answer when call returned

calls and hangs up on pickup.  line busy when redialed

Get several calls from this phone number...this has to be stopped!
Again, just like the other reports, the caller puts down the phone immediately when I pick up, and when I call back the line is busy.