Some networks will provide the unlocking code for a small charge, so it's worth trying them first. Alternatively, you can use an unlocking service in a high street shop, online or over the phone.

Learn how to check if your phone is unlocked and, if it isn't, how you go about making an unlock request with AT&T, Sprint, T-Mobile and Verizon.

To check if your Android phone is unlocked, try swapping in another SIM card or test your network settings. If calls work, ...

It’s generally a good idea to unlock your phone when it goes off-contract. If you’re ready to unlock your iPhone, here’s how to do it.

Depending on your phone, you might be able to do that by punching in a code, by buying a cable or by sending it to a professional unlocking service. This applies to Cingular Wireless, T-Mobile and ...

You have to unlock your iPhone from T-Mobile to use it how you want. T-Mobile supports remote unlocking for iPhones and doesn’t require you to enter an unlock code like for some Android phones. But to ...

Unlocking your cell phone lets you switch carriers without buying a new device. Consumer Reports explains how to do it.

Verdict Here we’ve shown you how you can unlock a Verizon phone without the code; however, some phones on Verizon just require a code — there’s not much way to get around it without one.

Today, the President fulfilled his promise to sign the Unlocking Consumer Choice and Wireless Competition Act. This means it's once again legal to unlock your cell phone to use on other carriers ...