I do not answer calls that I do not recognize outside of my area code. As with every other scam call I've received, they left no message. I figure if they really wanted to talk to me, they would have left me a message.
Have to assume it is a scam. So, based upon the info I'm seeing on this site from other people, I'm blocking this number. I know it's a waste of space, but I create a contact for each of these calls and name them "Scam Call". I'm interested to find out if any of them are able to get around the block I put on the number.