Something that helps is having an "undesirable" area code.
Telemarketers have learned that certain area codes convert at much higher rates than others. 202, 203, 212, 213 are prime targets. 242, 246, 406 and 701? Notsomuch.
If your NPA isn't important to you, get a number in those areas. (Some carriers will let you choose your area code as long as you're within the same billing center.)
I'm feeling very grateful for sticking with the same phone number I've had since high school in rural Minnesota. 100% of numbers I receive from "my" area code that aren't my mother, are spam. :)
Telemarketers have learned that certain area codes convert at much higher rates than others. 202, 203, 212, 213 are prime targets. 242, 246, 406 and 701? Notsomuch.
If your NPA isn't important to you, get a number in those areas. (Some carriers will let you choose your area code as long as you're within the same billing center.)