Who called from 8478050910

Caller ID says Unavailable. I answered but there was no reply on the other end. It plays "The number is out of service" when I call back.

Picked up a call from this number after our answering started to answer it. Nobody replied when I said "Hello." Caller ID says "Unavailable."

Nobody answered when I said Hello.......

They asked for my husband by first name, and only would say it is "Chris" ( man) calling with no details

Received a call from 847-805-0910 (read unavailable on caller ID)and asked fro my husband by first name. When I said he wasn't home, he said he would try back later. When the number was called back a recording said the number was not in service.