Robtex

Up: 2620:0:30::/45
Can't show all results, try to descend to a more specific CIDR
Down left: 2620:0:30::/47
Down right: 2620:0:32::/47
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
2620:0:30::53	A+PTR	ns1.msft.net
2620:0:30::53	A	ns1-205.msecnd.net.msft.info
2620:0:30::53	A	ns1-205.onenote.net.msft.info
2620:0:32::53	PTR	ns2.msft.net
2620:0:32::53	A	ns2-01.mono-for-android.net.msftnet.org
2620:0:32::53	A	ns2-205.s-msn.com.msftnet.org