jantare, you can get the Sprint 4s unlocked through Sprint customer service. But not the regular customer service, you've to go through international call support representative. All you have to do is activate the device on any Sprint account and call them and tell them that you're travelling abroad so you want to get it unlocked. They'll submit the unlock request to Apple and tell you to restore the phone after couple hours. That's it and your phone will be unlocked. Good luck.