I called the number back on a different phone. It is a "subscription special offer" service. You can remove your number from their database by hitting 1. Whether they will or not is the real question. I added the number to my BlackList app (android) so I won't get anymore calls just in case.
Frikin Automated [***], Spam Calls ... these people can suck my dogs [***]. I changed to a cell phone so this "free 20 dollare Wal mart gift card .ect... crap would stop, now it happens at least twice a week.