I got two calls from this number. And both times, they just hung up when I answered. The second time I called them right back. Immediately (I didn't say anything), I heard a recorded, very strange sounding voice saying, "Thank you. Your number will be added to our 'do not call list.'" Hopefully that will end the calls.
Just received a call from a man who sounded drunk/very unprofessional claiming to be from Visa. He was offering a job working from a home position. Definitely a scam...watch out.