They're not going to stop even if you ask them, they have no regards for anything but harassing. Try blocking the number, get a call blocker, or shut down your answering machine and let the phone ring. They'll continue calling if they get an answer of any kind.
I get calls from this number on my land line different times during the day and evening. The call is from a cellphone, the carrier is Verizon and the area is Kenosha or Racine WI. You can google the number and for a fee you can get the
name of the caller