Have you ever wondered exactly how a SIM card works? We’ll help you understand why your phone needs one and what they do to keep you connected. Image: TalkAndroid Editorial Note: Talk Android may ...

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 ...

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 ...