We have an answer for this! Phones are not guaranteed to work on other networks when it is locked to AT&T. To unlock the device, you would need to have six months prepaid service with AT&T or sixty days postpaid service with no past due or unpaid balance. Look over the requirements to being able to unlock a device through AT&T.
Have a great week!
James, AT&T Community Specialist
Need help? Ask a question to get help from the AT&T Community or support from AT&T specialists. If this reply helped you please use Accept solution to mark it as an Accepted Solution.
*I am an AT&T employee, and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.