Is it possible that they have caller ID?
Take a breath, chances are phone lines are tied up like crazy because EVERYONE is trying to get a hold of loved ones in the area. It happens with every natural disaster that happens now-a-days.
More than likely most of the phone lines have been burned down and those that are remaining are tied up. Be patient, Dear. Everything is probably okay. But I know your fear. I've gone through it before with tornadoes and hurricanes.