Riddle, just ebay, type in 4/4s/5 iphone permanent unlock.. make sure you have ATT though.. they will ask for your IMEI number when paying add a message to it with the IMEI.. after couple of hours they will send you the email that your phone is unlocked.. you just have to backup your phone in Itunes then restore it.... that's it.. but so far i have seen they can only unlock if its ATT