There are many services that claim to provide this same service, but our recommendation is the most reliable and affordable. They can unlock AT&T, Sprint, Rogers, Vodafone, Fido, O2, Orange and other famous carriers in the world on all iOS firmwares including iOS 6/1.2, 6/1.1, 6/1, 6/0 and below. For getting your phone unlocked forever, go here.
There are many methods and ways which we can use to save the activation directory from iPhone on our local machine. For example we can SSH into iPhone and download the required files using WinSCP. We can also use iFile from Cydia to zip the directory and mail it to inbox. Few hours ago MuscleNerd also released a new version of Redsn0w 0/9.10 b10 (a typo error, the latest version is b8 till now) to backup the iPhone’s unlock activation tickets directory.