Robtex

Up: 203.2.192.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.2.192.0/23
Down right: 203.2.194.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.2.192.0	PTR	net1.ip.ozemail.com.au
203.2.192.34	A+PTR	baymgr.ozemail.com.au
203.2.192.34	A+PTR	bayopt.ozemail.com.au
203.2.192.37	A+PTR	nocol.ozemail.com.au
203.2.192.58	PTR	stl0srv15.syd.ops.au.ozemail.net
203.2.192.66	PTR	mail.mel.aone.net.au
203.2.192.66	A	intermail.mel.aone.net.au
203.2.192.76	PTR	mail.ozemail.com.au
203.2.192.76	A	mail.au.uu.net
203.2.192.82	A+PTR	mta02.mail.au.uu.net
203.2.192.83	A+PTR	mta03.mail.au.uu.net
203.2.192.84	A+PTR	mta04.mail.au.uu.net
203.2.192.85	PTR	webmail.uunet.com.au
203.2.192.92	PTR	mail.uunet.co.nz
203.2.192.92	A	southernimplants.co.nz
203.2.192.92	A	cheapbeds.co.nz
203.2.192.93	A	oldmail.a1.com.au
203.2.192.94	PTR	ns1.mel.aone.net.au
203.2.192.95	PTR	ns0.mel.aone.net.au
203.2.192.100	A+PTR	penguin.senet.com.au
203.2.192.100	A	thor.senet.com.au
203.2.192.101	PTR	mail.senet.com.au
203.2.192.101	A	pluto.senet.com.au
203.2.192.101	A	gadzooks.com.au
203.2.192.104	A+PTR	secure04.ozemail.com.au
203.2.192.109	A+PTR	mta15.mail.au.uu.net
203.2.192.113	PTR	oznet19.ozemail.com.au
203.2.192.124	PTR	auth310.ns.uu.net
203.2.192.124	A	ogn.aust.com
203.2.192.124	A	ballet.aust.com
203.2.192.138	PTR	maxhob2.gw.ozemail.com.au
203.2.192.169	PTR	www.australian.aust.com
203.2.192.177	PTR	www.home.aone.net.au
203.2.192.180	PTR	clivetiki.ozemail.com.au
203.2.192.180	A	www.a2.com.au
203.2.192.180	A	a2.com.au
203.2.193.67	A+PTR	cache350.ns.uu.net
203.2.193.68	A+PTR	cache351.ns.uu.net
203.2.193.69	PTR	nnrp1.ozemail.com.au
203.2.193.100	A+PTR	gateway.senet.com.au
203.2.193.100	A	kurgan.senet.com.au
203.2.193.100	A	connor.senet.com.au
203.2.193.123	A+PTR	ns2.syd.aone.net.au
203.2.193.124	A+PTR	auth311.ns.uu.net
203.2.193.124	A	oznet.ozemail.com.au
203.2.193.144	A+PTR	oznet10we1.ozemail.com.au
203.2.193.148	PTR	secure04we1.ozemail.com.au
203.2.193.151	A+PTR	diskserv.ozemail.com.au
203.2.194.7	PTR	private6.mail.ozemail.net
203.2.195.47	A	cssladmn.ozemail.com.au
203.2.195.48	A	intemel.ozemail.com.au
203.2.195.53	A	rsmmelb.ozemail.com.au
203.2.195.55	A	petefell.ozemail.com.au
203.2.195.85	A	parkside.ozemail.com.au
203.2.195.93	A+PTR	bassmelb.ozemail.com.au
203.2.195.102	A	smithlew.ozemail.com.au
203.2.195.104	A	pali.ozemail.com.au
203.2.195.112	A	amradpb2.ozemail.com.au
203.2.195.245	A	glee.ozemail.com.au
203.2.195.247	A	ianf.ozemail.com.au
203.2.195.253	PTR	brendank.ozemail.com.au