The do-not-call registry will be expiring depending on when you registered. Numbers only stay on the list for five years. As a result, more than 40% of the 148 million registered phone numbers will fall off around the fifth anniversary of the list - next year - unless consumers re-register. First, make sure your number is on the registry and, if it is, when the registration will expire. You can check online at donotcall.gov (click on the button that states verify a registration), or by dialing(888) 382-1222 from the phone you want to verify. You can register at any time. So if your number is set to expire next year, you may want to re-register now to prevent any lapse in coverage. Its free, its easy and it will prevent many unsolicited sales calls.