I'm current and signed up on the National Do Not Call list - you can definitely expire, so if you think its been a couple years do a search and sign up again. We still get a few calls - my automatic response to the caller is, why would I do business with someone who doesn't respect the Do Not Call List?

For a while I messed with the callers - I remember one firm I put on hold for about 15 minutes, then came back and they were still there, waiting for me to come back. Nowadays I just hang up on them. No sympathy for cold callers here.