I received two calls from this number, both within the same minute, which I missed. When I tried to call it back, no one answered. So, I decided to search on the internet. Now I know who it was. It concerns me too, that I'm on the DNC list and was called.
The scammers don't care about the DNC list. They just need a sucker or two and they'll make money. They'll close up shop before the FTC ever gets around to them.