I understand where you're coming from. If someone does want to donate to a charity, make sure you do it as anonymously as possible! Never provide any kind of legitimate contact information or they will hound you like a swarm of mosquitoes.
I ran into this problem with Habitat for Humanity. Before Caller ID and when answering machines recorded on tape, a caller would call every day at about the same time and hang up at a point where my answering machine would run the tape to the end with nothing on it, preventing any legitimate callers from leaving a message. One day I was home from work early and at the time of the mystery calls the phone rang - it was Habitat for Humanity who I had donated to just a couple of weeks earlier. I made it clear that their calls were unwelcome, and lo and behold the "mystery calls" stopped.
NEVER give any charity your contact information! They will hound you day in and day out!
The Do Not Call list does not apply to not-for-profits. They can annoy you all they want. You have to talk to them and ask them to take you off their list. Even then they often don't. And you actually have to answer the phone to do that.
Today, they got the answering machine and hung up after a couple of click-clicks.
These folks have at least 2 numbers from which to annoy people (the other one is also a 202 a/c; I dare say there are more). Today, they got the answering machine and hung up after a couple of click-clicks.
Unfortunately, I have found that asking the "charitable" telemarketers to take your name off their lists is almost useless -- a rare thing if they actually do so.
Received call from this number yesterday as AICR and today as unknown name. Left no message. However, if it is a telemarketer, I'm on the no call list.
Received several calls from this number. Tried to answer the phone, but no one would talk back. Finally someone answered and said they were from the American Institute of Cancer Research. They asked if I would mail 15 letters to my neighbors and pay for the postage. I agreed. They said I would get them in October. The funny thing is they keep calling at least three times a day. I have not answered the phone anymore.