Your phone's SIM card allows the device to make calls, send texts, and connect to the internet. The SIM card provides a phone number that identifies your device on the carrier's network, whether it's ...

Despite its low profile, your phone's SIM card tool kit (also known as STK) is one of the most important things on the device, and whether you realize it or not, you probably use it every day. Built ...

Google Fi has implemented a Number Lock feature to fight illegal SIM swaps. This feature blocks your number from being transferred to another phone or to a new network. The FCC announced new rules to ...