Who called from 4047255417

You've been selected by Walmart for a free giftcard!!  Claim card at getgiftcardfree.com within 2 days to redeem. Process may take up to 30 seconds.

I got a text from that number around 6:20 or 6:30 tonight, telling me the same Walmart gift-card message. My neighbor sent me an e-mail a few minutes ago (coincidentally; weirded me out a bit) that claims cellphone numbers are going to be publicly accessible this month.  Don't yet know if it's a legitimate e-mail.