Free extra gig of data text? Scam?

[InsertPithyName]

Hey all! 

I just received a text offering me 1 free gig of data. Is this legit? Just wanted to make sure it's not some number spoof/scam before I click any links. 

Thanks! Take care out there!

[FidoJulien]

Hey @InsertPithyName

What number did the text message come from?