[utensil4778]

How does one even get access to that kind of information? Are ISPs just selling this stuff or what?

[reincoder]

We have 700 servers around the world and we run measurements over all of the usable internet space, including assigned IPv6 addresses.

I highly recommend reading some of our blog posts and community posts.

You can also checkout our IP data tags page: https://ipinfo.io/tags