Who called from 6512913238

Same here.

American Red Cross asking me to come donate blood. Legit call. I do donate often.

They call at least twice a week

Idk who it is but every time I answer there is breathing and then I tell them I will call the FBI and the number or who ever is calling from that number hangs up .  Please note this number as a scammer or something.

It's red cross, so it might just be someone creepy who works there.