This number and a bunch of others call all the time seeking donations. They cannot be removed via the Do Not Call Registry because they are supposedly calling for non-profits when in reality they are making a profit off of unsuspecting people. I would love to find the people running these things and stick an old style phone into a place the sun doesn't shine!
They hung up before I could confront them. My research shows them to be Atlantic Productions which is a fundraiser for a number of groups. DO NOT PLEDGE any money through them since only about 30% will actually reach the group you think you are helping.