4.10 still allows dual stacking core services like DNS but it is intended for NAT64 type deployment for other things (which I'm a fan of anyways! I'd encourage anyone to look into it while waiting for a different assignment, it's really quite good)... that said they are never going to be able to tell if your usage is from NAT64 or raw clients, not that I would condone lying in your application.

Thanks, I'll poke around a few and see which looks best! A bit more than Vultr but well worth it for a full table.

If you happen to have a pop in Sweden then there is an IX with free ports up to 100GE. https://sonix.network

Just Dual-stack dns by itself is sufficient justification as long as you already have IPv6. They dont care what else you do with it as long as its still also used for the "transition purpose" I'm not speaking for ARIN but I've been requesting and managing resourses from them for over 20 years, including a 4.10 allocation for side projects earlier this year.

Anything dual stack (dns, http, smtp etc.) is considered transitional. The only reason they say "exclusively" is so you technically have to give it back once its no longer used for that purpose. This is distinct from IPv4 blocks from the open market or the waiting list that you can sit on or sell if you no longer need them.

For most non-4.10 allocations only your original request needs to have been in good faith, after that utilization only factors into new resource requests.

For 4.10 the community wanted more restrictions to maximize availability for new networks.