Robtex

Up: 203.188.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 203.188.128.0/21
Down right: 203.188.136.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.188.128.1	A+PTR	ns2.perthix.net
203.188.128.1	A	ns1.melbourneix.net
203.188.128.2	PTR	melnt.melbourneix.net
203.188.128.4	PTR	mail.melbourneix.net
203.188.128.5	PTR	virtual.melbourneix.net
203.188.128.31	PTR	mel-pdg-switch01.melbourneix.net
203.188.128.32	PTR	mel-pdg-switch02.melbourneix.net
203.188.128.61	PTR	mel-pdg-ce01.melbourneix.net
203.188.128.151	PTR	mel-pdg-nas01.melbourneix.net
203.188.128.152	PTR	mel-pdg-nas02.melbourneix.net
203.188.128.181	PTR	mel-pdg-apc01.melbourneix.net
203.188.128.182	PTR	mel-pdg-apc02.melbourneix.net
203.188.128.183	PTR	mel-pdg-kv01.melbourneix.net
203.188.128.252	PTR	mel-pdg-bdr02.melbourneix.net
203.188.128.253	PTR	mel-pdg-bdr01.melbourneix.net
203.188.128.254	PTR	mel-pdg-bdr.melbourneix.net
203.188.134.1	PTR	whatever.infobahn.com.au
203.188.137.7	A	mx1-in.snapnet.com.au
203.188.138.3	PTR	blue.iping.net.au
203.188.138.3	A	ns1.iping.net.au
203.188.138.3	A	architecturallink.com.au
203.188.138.4	PTR	mx2.iping.net.au
203.188.138.4	A	littlewix.com
203.188.138.4	A	sbpe.net.au
203.188.138.5	PTR	webmail.iping.net.au
203.188.138.6	PTR	mx1.iping.net.au
203.188.138.17	A	diamondscaffolding.com.au
203.188.138.25	A	lcocentral.com
203.188.138.26	A	mail.lcocentral.com
203.188.138.27	A	enablerecruit.com
203.188.138.83	A	ipdat.com
203.188.138.83	A	dpcad.com
203.188.138.83	A	mail.ipdat.com
203.188.138.94	PTR	sentinelgroup.com.au
203.188.138.98	A	mail.kailisorganic.com
203.188.141.1	PTR	whatever.infobahn.com.au