Who called from 4073690913

Keeps calling and doesn't say anything. Don't know what he's doing, but it is really weird.

called and left no message. i am so scared right now.

Called but left no message .... After activate my voicemail ... Just said nothing...weird

ditto here..left no msg

Called and left a message saying he called the wrong number.  When you call the number back you can't even understand his message.