That's strange, previous post thought IRS scammer. My caller iD said unassigned and I usually pick up and hang up especially at 8:40 PM but I answered cause my Mom used to live in that area code. The man was thanking my Mom for her past donation with Habitat. When I said she lives in a Sr Community he said oh ok I will update my records, thank you. He also didn't have the heavy foreign accent the IRS callers have so maybe a newly "assigned" number.