Robtex

Up: 203.222.72.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.222.73.0/25
Down right: 203.222.73.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.222.73.47	A	73-47.dsl.connexus.net.au
203.222.73.178	PTR	73-178.dsl.connexus.net.au
203.222.73.180	A+PTR	73-180.dsl.connexus.net.au
203.222.73.180	A	www.pmassist.com
203.222.73.180	A	dns.elstar.com.au