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 ...

The newer eSIM technology, which is quickly becoming the standard on high-end phones, is safer and more convenient.

The agency says it found a network of some 300 servers and 100,000 SIM cards—enough to knock out cell service in the NYC area ...

Although cell phones have changed significantly in the last few decades, they still need a SIM. Some phones have moved to eSIMs, but many still use physical SIM cards. If you have a working phone, ...

Apple is escalating its war on physical SIM cards with iPhone 17 and iPhone Air — but I don't want to give up the physical ...

A SIM card in India continues to work for 7 to 30 days for incoming calls after recharge expiry. Outgoing calls and data stop immediately, but users get a grace period of 60 to 90 days before ...

The iPhone Air will only have an eSIM - will other phone makers also shift away from the familiar - but fiddly - plastic cards?

A Secret Service unit set out to unmask the layers of burner phones, changing phone numbers and SIM cards that were swatting ...