unknown caller

This is a fake scam CELL PHONE TEXT asking you to call a phone number. Phone Number is a scam to get your social security number.

Received numerous text from this # today, telling me to call there was a problem with my Mastercard with Suntrust...it had been limited and would be disabled if I didn't respond immediately and return the call to 678-278-1132.  Upon calling the #, it prompted me to enter my Mastercard # in an automated system.  If this was truly Suntrust, one of their Customer Service rep's would've been calling my home phone.  I DID NOT give them my card #.  Suntrust already has that info, why would they call asking for it.  THIS IS A FRAUDULENT SCAM....DO NOT REPLY TO THEM.  Call the authorities immediately.