Who called from 3012499870

Rang, I did not answer and they did not leave VM.

I have received 2 phone calls from this phone # , not any voice message, just nothing, I tried to call back, the phone number is not in service!!!

the same thing happened to me, it freaked me out.

I received 2 calls from this number.  I did a call back, and number not in service.  Who is this?

This number keeps calling me twice a day with nobody at the other end of the line.  Nobody speaks, no sound, why is this phone number listed on my caller ID if nobody answers.  Would like to report this number.