Robtex

Up: 203.57.242.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.57.242.0/25
Down right: 203.57.242.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.57.242.3	PTR	kingbrown.geo.net.au
203.57.242.3	A	blacksauctions.com.au
203.57.242.3	A	ns1.altu.net.au
203.57.242.4	PTR	taipan.geo.net.au
203.57.242.7	A+PTR	mail.geo.net.au
203.57.242.7	A	mx1.geomedia.com.au
203.57.242.20	A+PTR	laptop.geo.net.au