I wondered why I would see people outside the office here talking on their iPhones. Took me a bit to realize they had AT&T and there was no signal in the build

I wondered why I would see people outside the office here talking on their iPhones. Took me a bit to realize they had AT&T and there was no signal in the building and barely any outside the building. One reason why I stick with sprint is it works everywhere I go in this area.