Ever felt trapped, like your phone is only good for one network? You’re not alone. AT&T, like many carriers, sometimes locks phones to their network, meaning you can’t just pop in a different SIM card and switch providers. This can be frustrating if you’re traveling internationally, want to switch to a different carrier for better rates, or are selling your phone to someone who uses a different network. Being able to unlock your AT&T phone gives you freedom and control over your device and your mobile service.