Caller ID just says, "Detroit, MI" and the phone number above. They don't leave messages. After reading comments above, I am amazed that these scammers seem to feel that somehow we will be convinced to contribute to their "charities" if they tell us they are exempt from the Do Not Call Registry, and they think they can continue to call us after we've clearly said we are not interested. Why would anyone respond positively to that kind of bullying?