Who called from 2012106115

I receive several calls from this number a week.  A message is never left and it is very anoying.  I would like to know what this is about and have them remove my number from their call out list.

They've called my cell phone twice today.  Left no message.

They call me all the time. How do I get them to stop?

I received a call from this number, it rang twice and the caller hung up. I hope to not receive anymore calls from this number.

called me at 8;13  am  was a jerk on phone  did not gave me what he was calling for ask for my info; first  told him no way,  says it was a small matter  but now became a big matter,???????
reported to our local police dept to follow up on
would not tell me who he was    asked him severial times  would not let me know who or why he was calling   so I hanged up on him