Who called from 3100594744

I want to call them back to tell them to stop calling. But when I call this number it is "not in service"

Missed a call on my cell phone from (310) 059-4744 on 4/20/2013 at 9:43 AM PDT.  Whoever called did not leave a voice message.

Rec'd call this morning. No message. Came to a phone number that has not been given out (I route calls from my real number through Google Voice). Probably a robo-call.

Getting called from this number. I don't answer. Would like to know who it is.

Calls almost daily. Never leaves a message. The amount of calls from this number is getting old.