All fiber to the home service providers here (Jio, Tataplay fiber, Airtel etc) support IPv6 "out of the box".

What's the historical reason for good IPv6 support in India? They never managed to participate IPv4 address land grab?

In a word: yes. They have less than one address per one hundred people: https://en.m.wikipedia.org/wiki/List_of_countries_by_IPv4_ad...

Even the state-run broadband ISP goes as far as to offer DHCP prefix delegation: You can get a globally routable address for all your devices.

Meanwhile, here in an exurb in the same country that the Internet was created in, my only real broadband option is DOCSIS3.1 gigabit with Wave/Astound... which sounds nice, except it's still very-much IPv4-only with zero signs of IPv6 rollout - including confirmation from a customer service rep from about 2-3 weeks ago that there's still no plans to deploy IPv6.

Seems to be common with German DSL providers too. It’s just on mobile that you only get a /64

But maybe variable SLAAC will be the solution here

https://datatracker.ietf.org/doc/draft-mishra-6man-variable-...

The ipv6 routing on major ISP(Jio) that started popularizing it is pretty bad, half of the packets go to singapore and back to india. You often need to explicitly use v4 to get better latency.

My ISP hands out ipv6, but with no real support. Prefix delegation does not work and tech support is clueless...

My ISP in Ontario, Canada, has full ipv6 sorry for their cable customers, but tech support is clueless about it still. I had issues with ipv4 connectivity once and they struggled to understand that ipv6 was working perfectly and it was strictly v4 not working at all

My mobile service provider Jio does have IPv6 but my brodband service provider Hathway does not have IPv6.

Seamless. I have multiple fibre and mobile connections.

https://whatismyipaddress.com/ reports an ipv6 and ipv4 address for each connection.

I had to do nothing on my routers, it just started working a few months ago.

Edit:fixed bad URL

edit: already fixed by parent

Thanks for pointing out the lazy typo. Have edited my post.