This number called my DNC listed landline today at 1210 hours.  I let it ring for a while then picked up and said nothing.  No one on the other end spoke so I suspect it was an idiot-recording from some scam artist, waiting to hear a voice before activating.  For the heck of it, I blocked my call information and called the number back.  Surprise, surprise.  The number is not in service.  So that's a guarantee on it being a scam artist illegally spoofing a phone number.