This -- this has me a bit frustrated and I'll eventually email them about it.

I haven't contacted them about it but that makes sense sadly. So they're getting a /64 from their upstream and just sharing that out to everyone. This isn't IPv4, they need to make this right.

Vultr, OTOH, gives each HOST a /64. I've been doing most of my work on Vultr right now so I can use more than 16 IPs on a single host. I was/am hoping that providers would standardize somewhere in the middle: Every customer account in each datacenter gets a /64. I wouldn't mind all of my hosts having their own /64 to subdivide.