These guys called me almost 100 times from this and seven other numbers. Want to get removed from this company's calling list? Crank call them back. I crank called these wastes of perfectly good oxygen back about a dozen times and my phone magically stopped ringing. I guess you have to waste enough of their resources and make enough of them angry to make it happen.
I believe this is an autodialer server set up to call phone numbers and fish for when people are there to answer their phone. When they call, I usually just ignore it and not answer. If you answer, you are giving their system your phone number unless your caller id is blocked. I worked in this industry for a while, and harvesting phone numbers unfortunately this is how it is done and there is very little anybody can do about it.