Move contacts, messages, music, and other data to your new device using AT&T Mobile Transfer.
INSTRUCTIONS & INFO
Check to see if both your devices are compatible. To begin AT&T Mobile Transfer, from the Start screen, tap the Windows Store tile. Note: Click here to check for device compatibility.
Tap the Search icon.
In the search field, type in Mobile Transfer and tap AT&T Mobile Transfer.
Tap Install.
Once AT&T Mobile Transfer is installed, you can access the app in the Apps list. Tap AT&T Mobile Transfer.
Enter the Desired phone number for the transfer.
Tap the Send icon.
Begin the connection copy and follow the Instructions on screen.