Under local regulations in many countries (such as the FCC guidelines in the US), carriers must unlock your phone for free if you meet their requirements. The device must be fully paid off, and the account must be in good standing. Simply call your carrier's customer service or use their online portal to request the unlock. Web-Based IMEI Databases
: For the more technically inclined, the open-source repository "go-unlock-code-calculator" provides scripts that can be used to calculate unlock codes for various different mobile phones, including Alcatel. The Alcatel models this script will calculate codes for are commented into the "Alcatel.go" file. These scripts can be run from the command line, making them a powerful option for those comfortable with code. alcatel unlock code calculator free download top