Who called from 4052530420

I keep on getting calls from this number on my cell phone and they do not leave a message or anything.  I am on the DNC registry and they end up eating a lot of my cell phone minutes by doing this. I am going to sue them for harassment if it doesn't stop which I am well within my power to do.

no message left on voice mail, called number back to hear the "if you have recently been served a court notice yada yada yad"

Bill Collector but refused to identify company name.

Added to callfilter.