You could access numerous useful iPhone features by typing in a few secret codes on your device. Lots of the codes work whether you have an old or new iPhone and they can let you do things like ...

We often forget that iPhones are phones. But because they are, they can take advantage of the phone infrastructure to deliver information that your device either makes hard to find or just doesn’t ...

Use these codes to forward calls, pay your bill, check balances, etc. Some of the codes work only on certain carriers or devices. One of the codes also might erase your data, so use with caution. I've ...