https://www.consumer.ftc.gov/articles/0108-na ... try#registering
Q: How long does my phone number stay registered?
A: Telephone numbers on the Registry don’t expire. We only remove your number when it’s disconnected and reassigned, unless you ask us to remove it.
CALLED MY CELL- LEFT A MESSAGE: Help us advertise by placing a sign in your front yard - to get over $1100 in "free" alarm system by paying a small fee every month.." blah, blah, blah. Solicitor Recording