Who called from 2067771016

I HAVE ALREADY HAD 6 ROBO CALLS TODAY AND IT IS JUST AFTER NOON.  THIS GOES ON EVERY DAY AND SOME OF THESE NUMBERS ARE REPEAT OFFENDERS.  I DO NOT ANSWER AND THEY DON'T LEAVE MESSAGES.  I AM SICK OF THESE CALLS YET THERE IS NO WAY TO STOP THEM.  BEING ON A DO NOT CALL LIST DOES NOTHING TO AVOID THESE CONSTANT CALLS.  I AM SICK OF THEM.

got a call do not know who this is.

I just receive a call from this number three minutes ago.  I said hello and it was just dead quiet.  I hung up and saved this number as a spam.

Caller hung up.  Tried many times to call number back.  Automated forward to an error message.  They definitely don't want return calls.

a call came in twice person told me he was a windows tec.that there was something wrong with my computer i said ok GO [***] YOURSELF and hung up on him he had the balls to call me back i never picked up