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It's easier to remember the IPs of good DNSes, too.
(lemmy.sdf.org)
Today in our newest take on "older technology is better": why NAT rules!
You have my sympathy. I do not know of a sure way to get isp's to behave. Espesially not if they have regional monopoly
There are usually plenty of choices for ISPs here, actually. But switching between them isn't likely to give me IPv6 since either they share a magistral or the hardware is just plain old. That, and IPv6 is just not a thing anyone markets.
...and with the current fuckery going on, I doubt many of them have budget for big upgrades. Or maybe even access to hardware to buy.