This is the local American Red Cross chapter calling to try to sign up people who have donated blood in the past, or otherwise registered their phone number as a person possibly interested in donating blood.
Red Cross, local office in Scranton PA. Gave blood a couple of times and now they call regularly even though I asked them to stop since I have to pay for every call I get. They do stop for a while, but then they start up again. This annoys me so much I am not going to give blood again.