AT&T has been having a nationwide outage since about 4am EST today, mostly for their cellular network. It also includes any of the sub companies they own. Towers shared by other carriers with roaming agreements may also have outages in some areas. Many phones say "SOS" on the screen, which means cellular is only available for 911 and first responder use. Phone and Data appear to be down, but texts may be working.
I'm not sure if business internet customers are down.
I'm not sure if business internet customers are down.