If SOS is showing up on your iPhone's status bar, it means there's no cellular connectivity for your phone. Here are two quick ways to troubleshoot the problem if you think you should have a cellular connection.

As of 10 a.m., Verizon is reporting small outages in Yosemite and Vidal, way in the desert in San Bernardino County, but no other outages.

If you've ever pulled out your iPhone or Android phone and found it showing SOS mode, no service or searching, you already know how frustrating it can be to figure out whether it's a you problem or if there is a larger network outage happening. A handful ...

The outages appear to be happening nationwide, with the most reported locations including Seattle, San Francisco, Los Angeles, Phoenix, Dallas, Houston, Atlanta, Tampa, St. Louis, Chicago, Minneapolis, Detroit, Washington, D.C. and New York City.