The number leads back to something called predicto.com. I called both predicto and heycosmo and told them they contacted an secure internal government mobile phone and they were kind of scared when i threatened legal action.
I received a call from this number. Did not answer, no message left. But, after reading previous posts.....
There is not a do not call registry for cell phones. It is only for landlines. If you would like more information, please visit:
http://www.ftc.gov/opa/2005/04/dnc.shtm