Who called from 3122833786

I don't understand the purpose of listing your number on the National Do Not Call Registry list and still continue to get these calls!  Are they not updating the system? Gosh this is annoying.

Received a call on my cellphone on 5/9/16. I did not answer, caller left no message. Assumed to be spam based on comments in this thread.

Called and left no message. Blocked.

Another Robo spam Bullsh/t call. Time to tell Verizon and the other cell providers to petition the FCC to ban this sh/t. All hours, 24/7, they don't care, I'd like to choke the sh/t out of the little stinking twerps.
Sign me:
Pissed off Sprint Customer

Called again, but I've got the number blocked.