Said he was collecting donations for Florida State Troopers. The caller ID showed "uknown". I told him I was on the Do Not Call list. He said it didn't apply to him. I asked to be removed from his list. Silence for a minute. I asked again, CAN I BE REMOVED FROM YOUR LIST THEN!? He said he hated to give me an incorrect answer and would have to check.
Do not call these numbers. When you do you are simply verifying that your number is in use. If the least that can happen is they sell your number to an ad agency or telemarketer. The worst is it can one more piece of information that can be used to complete an identity theft.