Yeah, I know. In fact I still have a Southwestern Bell telephone on the wall in my kitchen. When I was a kid in the 80's there was a facility around the corner from my house with 100 or so of their unmistakable white and grey vans with the blue, white and yellow stripes.

I was just making a simple list of companies that a customer may have signed up with and now it's called AT&T. Even if in that case it was the same company just changing its own name. But corrections and clarifications are always welcome. Thanks.