Who called from 8478860041

Calls and never leaves a message.   FBI looking into.

I have been receiving call for two days now.  It started on Tuesday March 28 the times were11:37,11:45,2:04, 2:25,2:45,3:17 then on March 29 9:16,9:29, 10:08 central time.

Calls every 15 minutes and no one is there.

same thing.  called 5 times within a very short time.

Same issue. I live in Chicago and this number calls multiple times a day and it says it's a non working number when you dial it back. I never pick up and they never leave a message.