The number 303-500-8771 seems to always call us, and no one answers. But everytime within a few minutes of the call we get another call asking for money, most often "Special Oylimpics". So, I think it's just an annoying robot checking to see if anyone is answering the phone, before they put a phone call through for a telemarketer. I won't donate a penny to anyone who uses this number/service to annoy us.