Cox's IPv6 DNS server doesn't appear to work for all IPv6 domains.
Cox's IPv6 DNS server,
doesn't do all IPv6 DNS lookups.
Does Cox have an IPv6 DNS server that does do IPv6 DNS lookups?
The following lookup doesn't return an AAAA (IPv6) record:
dig @2600:8800:3300:14d::1 aaaa aaaa.v6ns.test-ipv6.com
Maybe it's something wrong with that specific server, because, e.g., this does return an AAAA record:
dig @2600:8800:3300:14d::1 aaaa ipv6.google.com
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