Who called from 3124800575

I received a txt saying I won a free Walmart gift card / not sure but seems like a scam???

I think it is a scam.  Saw this same text message on 2 phones originating from what appeared to be 2 different phone numbers - Neither related to Walmart.  Also, when I checked the URL page content from a non-phone source, it did not appear to be branded correctly for something related to Walmart.