AT&T resolvers

Does anyone know if AT&T has public DNS resolvers? We are an AT&T customer and they informed us that we could not use their DNS servers unless we paid for it. That was several years ago and do not know if they have changed their stance on this. I’m already a paying customer and I have to pay to use their DNS resolvers?

A few moments on Google finds:

They seem to work.

I suspect you asked them the wrong question, or they interpreted your question incorrectly, or for some other reason thought you wanted them to be authoritative for some zone you control.

They also have too.