Who called from 7202369600

We received a call from this number Jan 22, 2014.  They left no message.  The ID says "Unknown Name".  We never answer the phone for "Unknown Name" etc.  Don't know who this is.

Looking it up it says it's coming from the Denver/Boulder Colorado area

Got same call today. No message.

my wife received this call last week  they ask for a name that does not live here.  called again today.  tried calling number back...recording said not avaible to take call

Received call 1/14/14 & one other time. I don't answer, unknown callers on my cell phone. I Don't need to get, scammed. If legit, leave message!