Who called from 6782177991

Got a phone call from this person, left no message, tried calling back and said it was a number that is not set up to recieve calls. Think its a scam or a telemarketing service. either way its no good

4 calls in past 3 weeks - no reason to get calls from that #

Same as above. No idea who it is.

I have received at least 3 unwanted calls from this number (dates below). I don't answer, and they don't ever leave a message
(8/18/14,  9/2/14, 9/9/14)

I just received a call from this number, too.  No message.  I never answer my phone unless it's a number in my contacts, so unless they leave a message, I won't be calling back.  I'll update if I get any more calls/information.