For many years, mobile phones received cellular service through a physical SIM (subscriber identity module) card that connected your handset to your phone carrier. These physical SIM cards made it ...

As smartphones have become more pervasive in our lives, we've all kind of been forced to pick up basic knowledge and terminology over the years. Where previously certain jargon would exclusively be ...

Nida is a tech and telecom journalist with more than five years of writing experience. She graduated from the University of Toronto with a BA in journalism. You have more than one option for ...

What is a SIM card used for? A SIM card, or a subscriber identity module/subscriber identification module, is a tiny memory card that contains unique information and is linked to a particular network ...

For travelers who can't stomach the high rates U.S. carriers charge for international roaming, there is an alternative. Marguerite Reardon started as a CNET News reporter in 2004, covering cellphone ...

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 ...

SIM cards have been an integral yet often forgotten part of owning a smartphone for the past few decades. For most users, the SIM card defines the basic commercial relationship they have with their ...

To remove the SIM card from your iPhone, all you need is a SIM card ejection tool or paperclip. Sticking the ejection tool into your iPhone's SIM card tray will remove the card. Your iPhone's SIM card ...