Investigators say scam toll and postal texts are part of a billion-dollar phishing operation run by criminal networks in ...

Once you’ve activated your iPhone with your carrier, it should continue to work on the cellular network without any problems as long as you’re within range of a tower. Nevertheless, the vagaries of ...

It's not always easy to tell if an Android device is locked to a cellular/wireless provider, but there are methods to retrieve this information. If your device is locked, it will only take SIM cards ...

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

Have you found yourself unable to send or receive messages on your iPhone? Or are iMessages being sent from your email ...

If you've just got your hands on a shiny new Sim card, congratulations. Switching your Sim (the chip that dictates your allowance) can unlock huge savings. Now comes the crucial step of activating it ...

A SIM card, or subscriber identity module card, is essential component of any phone. It connects your device to a cellular network and stores vital information, including your phone number. Many ...