I actually called the number back and it gave me the option to either speak to a representative or to have my number removed from their listing (option #2, I believe). After receiving several calls over the past few days, this is what I did.
This number started calling at 7:59 a.m. continued calling all day a total of 12 calls, most happened while I was at work, I answered a call from them and it was extremely noisey and was a male voice, they just kept saying hello, hello.......annoying
I woke up to 7 missed calls this morning all from the same number 201-918-4960 and they have called twice since I arrived at work. I do not answer. I have repeatedly told them to stop calling and hang up on them. Now I just do not answer.