Who called from 4702031808

Unsolicited calls from unknown caller no message left

called 2 days in a row leaving no message.....unknown caller of course....will have to hit reject call.

Calls and no one there

Called my cell phone on 6/17/15 at 10:36 AM.  I was not near my cell at the time so it went to voice mail.
Surprise, surprise no message was left and no ID of who was calling appeared.

Called my cell at 6/17/2015 at 9:37 am and left no message.   This second time they called.