This "Dolt" from Bainbridge Island, WA keeps calling me eventhough I have told him to stop, more than once.

Keeps calling, won't stop even after being asked to stop. Caller ID says,"COMCAST".
 Sep 26th, 2018
Received a call from this number. Stated that he had spoken with "x" about 3 weeks ago. "x" was the old business partner who had not been physically present in the business for 3 years. Straight up lied to me.
Raspy voice, Comcast on the caller ID, I said thank you but no thank you after informing him the the person who he mentioned speaking with 3 weeks ago had been gone for a few years...
 May 15th, 2018
I've gotten calls from this number every morning at 8:20am from 12/17 through 12/20. I don't answer, and they never leave a message.
 Dec 20th, 2013
Left no message.
 Mar 26th, 2013
I keep getting calls from this # - they leave no voicemail and call at least once a day.
 Mar 05th, 2013