Well, I know a place, just 50 miles from Washington D.C. where those copper lines are just about it. It's that or Starlink. Cell service is iffy, with the closest being 2+miles away across the river, and pretty much weather dependent. No cable TV out there, either. Internet is starlink or satellite.
I have little doubt that that is not the only market area like that in the country, but AT&T caters to population centers, and cares bugger all about rural markets, as evidenced by their cell tower distribution in this state and elsewhere.
We used to joke we could pretty much tell where drilling activity would peak here, because it was the non-covered area on the AT&T coverage maps. They were fine along the paved roads and in town, but that's just a very small part of North Dakota's oil producing areas.
Verizon stepped into that vacuum here, realizing that the same people and places where there were drilling rigs would have production hands and pumpers on those locations for decades to come. AT&T, in its arrogance, lost gobs of market share here.