Robtex

Up: 2600:3c02::/33
Can't show all results, try to descend to a more specific CIDR
Down left: 2600:3c02::/35
Down right: 2600:3c02:2000::/35

IP	Type	Hostname
2600:3c02::2	A+PTR	resolver01.atlanta.linode.com
2600:3c02::3	PTR	resolver02.atlanta.linode.com
2600:3c02::5	A+PTR	resolver04.atlanta.linode.com
2600:3c02::7	A	resolver06.atlanta.linode.com
2600:3c02::8	A	resolver07.atlanta.linode.com