https://pon.wiki/ has a few bypasses for AT&T and other fiber ISPs. Unfortunately a lot of the info isn't on the website, but in their Discord server instead.
You'd have to poke around in the forums. I'm not sure what the best keywords to search with would be. The gist of it is only AT&T ONTs can connect, because it's using certificate fuckery, but there was a guy buying those up for $1 or $5 or something on ebay, jtag-ing the certs off of those, and selling them for $10 each. There were instructions for how to program the sfp module to use those, and when I got mine those modules were only about $50 each (no idea what they're now with the tariff nonsense). You'd need a router that can accept those, I've got a Mikrotik. I think Ubiquiti has a prosumer router with one too that's not too crazy.
At the time (3 years ago-ish), no one had figured out a way to do it with AT&T 5gig service. But for that you'd need something with SFP+ slots, and those are seriously pricey.
https://pon.wiki/ has a few bypasses for AT&T and other fiber ISPs. Unfortunately a lot of the info isn't on the website, but in their Discord server instead.
http://dslreports.com/
You'd have to poke around in the forums. I'm not sure what the best keywords to search with would be. The gist of it is only AT&T ONTs can connect, because it's using certificate fuckery, but there was a guy buying those up for $1 or $5 or something on ebay, jtag-ing the certs off of those, and selling them for $10 each. There were instructions for how to program the sfp module to use those, and when I got mine those modules were only about $50 each (no idea what they're now with the tariff nonsense). You'd need a router that can accept those, I've got a Mikrotik. I think Ubiquiti has a prosumer router with one too that's not too crazy.
At the time (3 years ago-ish), no one had figured out a way to do it with AT&T 5gig service. But for that you'd need something with SFP+ slots, and those are seriously pricey.