Here is what I found out from someone else that was getting calls from this number and what it is called. Here is the link. I had called the number back and got the name and googled it.Here is what I found.
http://terirobert.typepad.com/insideout/2006/08/beware_of_calls.html
Every day or two I receive a call from 1 313-450-1391. I get dead silence and a hangup. It's even long distance; I lived in Michigan and 313 is the AC for the Detroit area.