Again people just repeating what they've read on the internet. The post above says it may restrict, it does not say it does restrict. How do I know it has international warranty? Simple, I had my iPhone replaced whilst abroad. When I spoke with the Apple Rep over the phone she said exactly what I stated earlier. iPhone warranties are global but only where the same model is available for sale. This means Carrier locked iPhones may not be serviced abroad but a factory unlocked model that also happens to be sold in said country will be serviced. On a side note, The Apple Care Representative who handled everything for me in regards to the AASP was in Ireland. I figured she would be American. Going through the Apple Rep expedited everything so I didn't have to deal with the AASP. I highly recommend doing it this way.
So
AmazingKerem don't believe me? Call Apple Care or better yet travel abroad and have your phone repaired. Do not just regurgitate what's repeated to you as gospel set in stone.