Who called from 2010020100

I do not answer unknown numbers, they called me 3 times and didn't answer and decided to look at these previous posts. I think it's a prank too, I tried calling the number back and it said it was disconnected.

I keep getting calls from this number and nobody says anything I just don't answer calls from this number anymore.

Asked for my wife.  Told them I was on a do not call.  They did not care.  They said "Go ahead and call gov for legal action, we don't care"

They keep calling about giving me a loan that I don't want.

They say they are from the government and they want to give me $9million dollars. How do I stop them from calling me all day and night?