In this case, it goes to VZ selling its 700 MHz licenses. I predicted that, absent an FCC condition, they would unload them either to AT&T or to players in markets so rural that VZ doesn't want to serve them. AT&T can (and will) pay more than anyone else, so even though they are a major competitor VZ will sell to them -- especially if AT&T can provide some spectrum back.
So VZ is now done selling off its 700 MHz licenses. The ones that didn't go to AT&T (surprise!) wen to a bunch of very rural systems.
I don't begrudge rurals their 700 MHz licenses. They need them. But it hardly helps competition and we shouldn't pretend it does.