I got a text from this number today stating that I had won a Walmart gift card.  Sure I did (sarcasm).  It is SPAM.  I forwarded the text message to 7726 (SPAM) and my wireless carrier sent me another text saying thanks for reporting it and then provided instructions on how to block the 310... number to prevent any future messages.  Hopefully this will halt any further problems with these scamming spamming idiots.