I recv'd a call from this # on 6/25/14.  I didn't recognize it, so didn't answer; no message was left.  I searched on-line - here - and saw no other reports.  Didn't think about it until I recv'd another call from this # today; same thing, no message was left.  Today, I called the # back and it says it's not a working #.  Can't verify if this is SPAM, but receiving 2 calls from a phone # that doesn't work doesn't seem legit.