Robtex

Up: 210.55.198.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 210.55.198.0/25
Down right: 210.55.198.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.55.198.2	PTR	server1.nil.net.nz
210.55.198.2	A	server1.npe.net.nz
210.55.198.2	A	devicetesting.co.nz
210.55.198.10	A+PTR	ns1.nil.net.nz
210.55.198.11	A+PTR	ns2.nil.net.nz
210.55.198.51	A	webauth.nil.net.nz
210.55.198.66	A	ddi-mail.nil.net.nz