Xbox 360 region code is a unique identifier that identifies a specific console in a specific region. To change the Xbox 360 region code, you must first create an account on the Xbox 360 website and then input your new region code into the Region Code Change Form. After you have submitted your information, you will need to wait for the Xbox 360 system to process your request. Once your request has been processed, you will be able to see your new region code in the System Preferences under Region Codes.