AT&T will "phase out outdated services like DSL and new orders for the service will no longer be supported after October 1." Thanks to Rob Pegoraro for including me in his story. AT&T will continue offering the DSL from their field terminals, calling it fiber to the node. It's the central office connections that are being closed, most under 6 Mbps.  

DSL is now often delivering a gigabit with G.fast. Adtran is actually seeing an uptick in G.fast in Germany, served from fiber to the basement. G.mgfast is still moving in standards, for 3 and 6 Gbps. But the faster DSL requires a terminal in the field, normally backhauled by fiber. That cost money the telcos didn't feel like spending.

Verizon and AT&T, around 2011, “basically gave up on fighting cable over a third of its territory,” I told Rob. Both decided they ultimately saved money with a single, wireless network. They continued to milk the territories for whatever they could get, and hemorrhaged subscribers to cable. Bruce Kushnick discovered that both companies are now down to under 700,000 pure DSL customers, losing more every quarter.

I estimated that DSL remains the only landline choice for 3 to 6% of the U.S. LTE is now routinely 50-125 Mbps. Elon Musk is launching hundreds of low orbit satellites with DSL like latencies. There's little need for slow DSL.

Cable is the best choice for the 2/3rds of the US where the telcos haven't built fiber home.