E.g. Maxmind (commonly used for geoip lookups) support IPv6:<p><a href="https:&#x2F;&#x2F;www.maxmind.com&#x2F;en&#x2F;ipv6-information-and-faq" rel="nofollow">https:&#x2F;&#x2F;www.maxmind.com&#x2F;en&#x2F;ipv6-information-and-faq</a>