wifi 6 routers

At this point your best bet is to purchase a separate router/access point with the 802.11ax functionality and connect it to the AT&T Gateway.

There is only one AT&T Gateway that supports 802.11ax and it is currently reserved for new fiber installs where it is the only Gateway that will work.

Do you have a direct fiber connection?

The RED port of the current gateway is being used to provide service from the ONT?

If yes, can call and request upgrade, as the newest model (BGW320) is currently only for fiber installs as the BGW320 has a build in ONT. Expect a possible $99 tech dispatch charge to swap the current ONT and gateway with the BGW320. Some removable of equipment, reconfig fiber, activation of the new ONT of the 320 means will likely be without service for up to 30 minutes. 

IF no, desiring WIFI 6 recommend purchasing a 3rd party product and placing behind your current gateway. Do you have devices that support WIFI 6 (AX)?

Yes, about device support, but no to a fiber connect not an option at my address yet! Thank you for the responses. If I understand my best option is a 3rd party ran behind current gateway, right? Is it worth it yet? 

Since you have 802.11ax devices, the question depends on whether you need the ability to transfer data inside your home at the increased rates or you want the intrinsic ability to use both bands.

Since you don't have fiber, then 802.11ac and 802.11n will get you more bandwidth than is available on your AT&T Internet connection so you'd see no bandwidth benefit in accessing the Internet.

Band steering is supposed to allow you to shift between 2.4 GHz and 5 GHz bands, but it's not as seamless as it could be.  Since 802.11ax uses both bands I expect that it will shift between bands more smoothly.

Hey Thank You so much I swear though I get so twisted trying to understand networking I really do thank you for taking your time responding. You have helped and my 1st question has been answered. 

Now I have others such as doesn't 802.11ac (Edited per community guidelines) bands as well again not so seamlessly? If my head is getting this with the 802.11ax the main boost comes mainly with the the amount of devices you use for data in your network. I suspect transfer speed from device to device increase and maybe the number of devices. Is this right? 

I live in Austin so you would think AT&T would have covered the area but not only do I not have fiber my connection is through DSL!! I keep trying to find some how to get more speed but unless a larger phone line is out there I guess I just have to wait 

I live in Austin so you would think AT&T would have covered the area but not only do I not have fiber my connection is through DSL!!

Do you have Google Fiber option in Austin?

If yes, expect ATT Fiber is also available...

If no, would not expect ATT Fiber...

ATT Fiber is available to 40% of Austin residential addresses while Google Fiber is available to 38% of addresses. 

https://broadbandnow.com/Texas/Austin?zip=73301

Austin was an early Google Fiber City, believe behind Kansas City...

ATT competed on fiber where the competition was... This was in the early part of the (4) year fiber buildout, part of the government condition in approving ATT purchase of DirecTv in summer2015.

The condition was to provide 12.5 million addresses with fiber connection within 4 years, but did not say where those addresses had to be. ATT reached 14+ million addresses within 4 years, meeting and exceeding the government goal by 10%.

I suspect once the Google addresses were covered by ATT, the company deployed fiber to other markets... reaching over 90 different markets within 21 state footprint to some degree instead of covering maybe 5 markets 100% and leaving the rest on same existing services. 

If not direct fiber (FTTP) then ATT internet offerings would be xDSL with the x being either VDSL FTTN (fiber to the neighborhood offering speeds of 100, 75, 50, 25 depending on facilities and copper distance), ADSL2+ with speeds of 18 or less from Central Office (CO) or Remote Terminal (RT) ... all of above have 1T data cap. 

The other xDSL is ADSL or LEGACY DSL with best speed of 6 and 150G data cap. 

If you have 1T data cap, you have Uverse internet deployed from 2006 to end of 2015. VDSL FTTN reached 33 million addresses by 2016 while ADSL2+ reached 24 million for total of 57 million addresses covered by Uverse hardwired service. 

In comparison FTTP direct fiber is currently around 15 million with another 7 million to be added over couple years for total around 22 million. The WHO, WHEN, WHERE questions cannot be answered until the work is completed. 

802.11ax provides for better throughput per device, and does better at sharing the spectrum between multiple devices.  The total traffic to all your devices from the Internet cannot exceed the Internet bandwidth.  The total traffic also cannot exceed your Wi-Fi bandwidth.  The lower one of the two is the limiting factor.  In your case, it's the Internet bandwidth.

Unless you have use cases where you need to send data between two devices that are both in your home, e.g. from a Plex media server to a TV stick, or you stream games from your XBOX to a PC, you're really not going to benefit from the increased bandwidth or bandwidth sharing of 802.11ax. 

If you had 2 Gbps Internet, the story would also be somewhat different.

Well we live apparently outside the line for fiber and yes you are correct U-verse but the fastest or only option they had for our home is the 25 plan which uses a phone line, at least all the way from my home to the end of street then it is fiber but the small lanes really (Edited per community guidelines). I know that we can get Spectrum here maybe not fiber but cable is so much faster than this, I sure wish AT&T could get us on at least cable if Spectrum can why can't they? I hate changing providers it is a hassle. 

How can i get my At&t router replaced for the new wifi 6 standard?

@Leowifi6   That's already been answered in this old thread you dredged up but apparently didn't read.  TL;DR - you can't.