A little town I know has maintained their antique telephone exchange for going on 40 years, and one of the features is that they have a block of numbers that le

A little town I know has maintained their antique telephone exchange for going on 40 years, and one of the features is that they have a block of numbers that lead to all the error messages. (541-447-0054 for example) For a while I redirected my phone number to one of their error messages, and now I rarely get robocalls, because the spammers presumably blacklisted me.