People have become way too dependent on the Net and cell phones. My wife and I are not and I haver Boost and it never went down, not that I used it today because I didn't.
Just wait until the Houthi's pull up the trans continental cables that run down from Suez and cut them. That will really put the Kabosh on any and all communications because, remember, just because you make a local cell phone call, you have no idea if that call is being routed on one of those cables or not.
The 'information highway is quite vulnerable to disruption and the Houthi's have the motive and the resources to cripple it. The bulk of communications undersea cables run right past their front door.
We also have a SAT phone that is entirely independent of any cables but it's expensive and so is air time.