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.

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.

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.

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.

By entering certain strings of numbers and symbols into your phone's dialer, you can gain access to a world of hidden ...

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

Generally, you pay for the code, and it’s sent to your email. Verdict As you can see, unlocking a phone can be really handy, particularly with international travel.

Once your phone is unlocked, you may need to enter a code to complete the process – but this will depend on the make and model of your device. I’ve heard that unlocking a phone is illegal ...

Unlocking your phone used to be a massive pain in the ass but now, thanks to a host of new start-up companies, you can do it all online (and in less than 24 hours)… Not so long ago, unlocking a ...