Robtex

Up: 203.55.230.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.55.231.0/25
Down right: 203.55.231.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.55.231.1	A	gateway-syd.chime.net.au
203.55.231.23	A	staff.ihug.com.au
203.55.231.23	A	mx.sydney.iinet.net.au
203.55.231.23	A	trinity.ihug.com.au
203.55.231.65	A+PTR	hpbx.iinet.net.au
203.55.231.88	A+PTR	nexthop.nsw.iinet.net.au
203.55.231.88	A	nexthop.nsw.ii.net
203.55.231.197	A+PTR	sip.nsw.iibusiness.net.au
203.55.231.197	A	sip.qld.iibusiness.net.au
203.55.231.200	A+PTR	sip.nsw.iinet.net.au
203.55.231.200	A	sip.qld.iinet.net.au
203.55.231.200	A	sip.sa.iinet.net.au
203.55.231.203	PTR	sip.nsw.iibusiness.net.au