I have started hanging up FIRST, the second they say the word warranty or ask about my vehicle, I just hang up first, that's what they are going to do to you the minute you say no.
Do not call DOES work. You must know when the number called, (date, time of call) was it a robo call or did a person actually speak with you...you should always get a name. Get as much information as you can and then file a complaint with the FCC's National Do Not Call online site. You must first give warning and tell whoever the company is that is calling that they are not to make further calls to your number, and then if they repeat the offense, they are liable for thousands! Of course you will see no money, but they won't call again. And, by the way, do not ever let a company worker who is calling for commercial purposes, and has no business affiliation with you that they are not restricted from contacting you or do not fall under the Do Not Call guidelines...this is false.
Scammers selling extended auto warranties. I informed them I was on the Do Not Call list and not to call back, but I have little hope that will happen. These scammers just use phone number spoofing to appear to call from various places to avoid any way of blocking their calls. The federal Do Not Call list is a joke. These scammers should get life sentences if not be hanged as entertainment at the Super Bowl half time.
Checked www.spokeo.com, it says it's a number from Saddlebrook, NJ. Going to contact their attorney generals office (it works!) to report as they keep calling here too. Keep reporting to www.donotcall.gov also. Thanks to other bloggers for their input.