I just called it back and got a recording saying that "most non profit organizations are exempt from the do not call law, but if you leave your number and ask them to remove it from their list they will" within 2-3 business days.
361 992 3063 is coming into our main number at least twice each day. They just hang up when our receptionist answers the call. Our security department called the security department of SBC and we were advised that this behavior is a criminal activity known simply as "telephone harassment."
I have placed their inbound calls on a divertor to record the frequency of their calls and a complaint with SBC and authority to prosecute.
All of the major telephone companies have this service. Everyone can avail themselves of it. Just call your local and long distance provider.