My 92-year-old mother got a call from 515-432-5872 on 1.31.2017 at 3:53 p.m. She thinks it was a robocall, but they enticed her to say her name. Then it hung up. She tried to call it back (I've cautioned her not to call strangers back) and got the "number not in service" message. We are keeping an eye out for bills that might be related to this scam.
When I tried calling back the number it says it's not in service. I can do this without risk because of my work phone system - never call an unknown number back from your own private number. I just blocked the number. Probably scam