Robtex

Up: 2001:12f8:4::/47
Can't show all results, try to descend to a more specific CIDR
Down left: 2001:12f8:4::/49
Down right: 2001:12f8:4:8000::/49

IP	Type	Hostname
2001:12f8:4::10	A+PTR	d.dns.br
2001:12f8:4:1::20	A+PTR	d1.d.dns.br
2001:12f8:4:1::22	A+PTR	d3.d.dns.br
2001:12f8:4:1::24	A	d5.d.dns.br
2001:12f8:4:d11::17	A	gw01.d.dns.br
2001:12f8:4:d11::20	A	d1.d.dns.br
2001:12f8:4:d11::21	A	d2.d.dns.br
2001:12f8:4:d11::22	A+PTR	d3.d.dns.br
2001:12f8:4:d11::24	A	d5.d.dns.br
2001:12f8:4:d12::33	A	gw01.d.dns.br
2001:12f8:4:d12::36	A	d1.d.dns.br
2001:12f8:4:d12::37	A	d2.d.dns.br
2001:12f8:4:d12::38	A	d3.d.dns.br
2001:12f8:4:d12::40	A	d5.d.dns.br