Robtex

Up: 2a00:1450::/33
Can't show all results, try to descend to a more specific CIDR
Down left: 2a00:1450:4000::/35
Down right: 2a00:1450:6000::/35
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
2a00:1450:4001::6	A	r1.sn-4g5ednsy.c.2mdn.net
2a00:1450:4001::6	A	r1.sn-4g5ednsy.googlevideo.com
2a00:1450:4001::6	A	r1.sn-4g5ednsy.c.youtube.com
2a00:1450:4864:20::102	A+PTR	mail-lf1-x102.google.com
2a00:1450:4864:20::104	A+PTR	mail-lf1-x104.google.com
2a00:1450:4864:20::10c	A	mail-lf1-x10c.google.com
2a00:1450:4864:20::111	A	mail-lf1-x111.google.com