Turkcell Secret Codes Posted by Safdar Hussain on December 31, 2011 Posted in: GSM, Turkcell Secret Codes. Leave a comment Turkcell Secret Codes You can check your remaining credits by dialing *123# *177*2# to request information of prize points.Putting #31# / *31# in front of the number that you’ll call, hides or shows your number. Share this:FacebookXLike Loading...