It is possible that it isn't a hack attack. I mean, who knows? Maybe it isn't. Perhaps it is not.
Could be a squirrel chewed through a line or something.
Shutting down one or two networks may be a test or a warning, right now I have t-Mobil in ohio and it is fine and we have plenty of squirrels 😂
Looks like it effects the eastern half of the country.
https://istheservicedown.com/problems/att/map
If it were something simple like a squirrel chewed thru a cable, that outage would be isolated to one company in one geographical area.
This particular outage is pretty widespread, and all the major carriers are experiencing issues.
Several weeks ago a transformer across the street blew up and we lost our power.
So I took a walk over to it and sure enough, there was a fried squirrel on the ground...LOL!