Been getting multiple calls from this and also 980-265-5631 - both show up as "Charity" on my ID. The one time I picked up to tell them to buzz off, I got about 5 seconds of dead air, and some garbled, unintelligible recording.
Called early in the morning. Did not answer. The phone said "I" on the caller ID. I called them and they mentioned donors so it might have been a scam charity. I think it should be against the law to have a prerecorded message when you call these numbers back that do not identify themselves.