To unlock your iPhone from its carrier, you'll likely need to contact your carrier directly to cancel your contract.

Consumer Reports has no financial relationship with advertisers on this site. Unlocking your cell phone lets you switch carriers without buying a new device. All carriers are required to let you do ...

In addition to using the phone on a rival domestic carrier, many users may want to unlock their iPhones for traveling to international destination. This way, they can use a prepaid local SIM card ...

After you purchase and use your cellphone for an extended period of time, you can change networks. However, the phone that you're currently using may not be offered on that network. If you wish to ...

Forbes contributors publish independent expert analyses and insights. I am an investigative attorney and physical security specialist. If you ask most cell phone users what they understand the term ...

If you need to find out your iPhone's carrier without a SIM card installed, you can do so through the Settings app.

A new iPhone 4S accessory claims to successfully SIM unlock all models of the AT&T Apple iPhone 4S running iOS 5.0 and 5.0.1 firmware. As AT&T, unlike rivals Sprint and Verizon Wireless, does not yet ...

Shawn is a software engineer and a mobile tech degenerate by night. His daily drivers are a Galaxy S7 Edge and an iPhone 6S Plus. Ever since the Nexus 5, Sprint seems to be ever more accepting of ...