I receie this number on and off. I have spoken to a live person telling them the the person they are calling does not have this telephone number. It stops for a while and then starts up again. I tried the "*" but I do not see this helping. Lets keep our figures crossed.
Put your number on the National Do Not Call registry.
https://www.donotcall.gov/default.aspx
If they still call file a complaint - it gets them in trouble. Good Luck