This simple tip could save your life: Make your emergency medical information and contact numbers visible on your locked phone. I've been contributing to PCMag since 2011 in a variety of ways.

Everyone knows to call 911 if there's an emergency, but what if you need urgent help with something else? Here's who to call and nonemergency numbers.

Emergency and useful phone numbers to have if you are a Los Angeles-area resident, as well as additional information on how to help those impacted by the wildfires.

With an estimated 240 million 911 calls a year nationwide according to the National Emergency ... number where the call originated. A 911 call placed from a landline will display the phone number ...

If the phone's location changes, the contacts receive an update via text. Many Android devices allow you to add emergency contact info via the phone's settings or contacts app. Where it is depends ...