Pulling IP addresses back from the rainforests of South America

I got some IPv6 blocks in RIPE, and the previous owner, for some reason, had his entire IP block littered in random locations around South America. Since I'm using that block mostly in Europe and I am tired of random CDNs DNS-Routing me to an obscure PoP tens of thousands of miles away, I decided to make this list of "links to go to for correcting IP geolocation".

Most of this will only work if you change something in the Whois of your IP block, so don't expect to pull Vultr or Buyvm's IP into Antarctica and declare yourself an Antarctican Explorer.