My landline and cell phones have been deluged with these unwanted calls that hang up when they hit the voicemail, which is why I screen calls. This 516 number is the latest, from 4 minutes ago. WHAT "do not call" list? You can block this call and then another 5 spring up, like a hydra.
Got a call from this number. Rang one-half time then hung up. (I detest callers like this.) Called the number back and it was "Julie from Reward Redemption". Left them a message to take my number off of their call list. I don't know if this will do any good but it is always worth a try. And yes, I AM on the Do Not Call Registry and have no idea how they got my number.