I understand that New Ham probably allows the teens' phones to still be able to text and call each other simply for the fact that the show's writers wanted to use texting as a way to move certain plot points forward, but other than that . . . well, it makes zero sense. It's not like there are cell towers in the new version of the town, right? And obviously there's no internet or WiFi. Although, looking on the bright side, I guess none of them have to worry about getting an angry text from their dad about using all the data for the month.