Visible customers seemed largely unaffected while Verizon went down, but there are events that could cause outages for both.

A dual-SIM setup lets you use one phone to make and receive calls and texts from two numbers. It's also super convenient and can save you serious cash when traveling. We show you how to use two SIMs ...

Physical SIM cards have long been synonymous with phone numbers. They've changed greatly from what they once used to be — giant cards you'd have to put in after removing your phone's battery – but ...