I got a call from this number and ID said it was Leukemia society. Did not answer. I get 2 phone calls a day from this society. They also come with the number 1-435-294-1281. I also get them Toll Free 1-866-323-5429. Obviously something fishy about all these calls from the Leukemia Society. I never answer. They can call 100 times a day. Wasting their time.
Two other websites are reporting it as the Leukemia Society; they've never left a message, so I can't verify that for sure. I'm not going to bother calling back; charities do not have to obey the Do Not Call registry, and I'm not getting multiple calls like other posters seem to be getting. Otherwise, I'd call them and ask them to remove me from their list (at which point they must, and then you can file complaints against them if they continue to call with unreasonable frequency or times of day.