Robtex

Up: 69.172.218.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 69.172.219.0/25
Down right: 69.172.219.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
69.172.219.4	PTR	ns2.astutehosting.com
69.172.219.4	A	ns3.stuckapart.com
69.172.219.4	A	ns1.jodor.org
69.172.219.5	PTR	ns4.astutehosting.com
69.172.219.5	A	ns4.ahsv.net
69.172.219.5	A	ns2.edgeofreason.org