Did not answer left no message.

Just got a call from this number, came here to see if anything specific was mentioned.  We no longer answer our phone unless the name and number of someone we know appears in Caller ID display.  Many have mentioned that not answering will eventually cut back on these calls.  Unfortunately not the case, we're getting just as many, if not more, per week as we have in the past.  This is Friday, 5/19/17, and we've now had 12 of these unwanted calls since Monday, 5/15/17.  We can block number after number, but the problem here is that they constantly change numbers, so that's a moot point.  Most of it is scams/fraud in which "Do Not Call" has any control over.  As for this particular number?  My guesses are: USA Pharmacy/US Pharmaceuticals (the middle eastern prescription drug dealers); the computer virus scam; auto warranty scam; etc. etc.  It's never ending.

left no message

Same here. Just received a call from this number. In looking at my missed calls, the numbers are changed by only one digit. I've called Verizon, there's nothing they can do, but change my number. I get up to 12 calls/day, and end up leaving the ring tone 'off', because it's a constant distraction and interruption in my day. I virtually have a phone, that I pay for, and can't use, except for outgoing calls.

Called and left NO message.  When number is dialed, the following canned recording is played, ". . .We're sorry the call cannot be completed as dialed.  Please check the number and dial again. . ."  Clearly a nefarious SCAM/SPAM entity using Number Spoofing to defraud.  DO NOT ANSWER!