Robtex

Up: 2600:2000:1000::/48
Can't show all results, try to descend to a more specific CIDR
Down left: 2600:2000:1000::/50
Down right: 2600:2000:1000:4000::/50

IP	Type	Hostname
2600:2000:1000::3	A+PTR	nettica-red-ns.myriad.dyndns.com
2600:2000:1000::5	A+PTR	wix-red-ns.myriad.dyndns.com
2600:2000:1000::7	A+PTR	ns01.brandshelter.com
2600:2000:1000::9	A+PTR	anycast1.dnsres.net