Robtex

Up: 203.59.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.59.52.0/23
Down right: 203.59.54.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.59.52.55	PTR	203-59-52-55.dyn.iinet.net.au
203.59.52.59	A+PTR	203-59-52-59.dyn.iinet.net.au
203.59.52.75	A+PTR	203-59-52-75.dyn.iinet.net.au
203.59.52.79	PTR	203-59-52-79.dyn.iinet.net.au
203.59.52.127	A	mail.vowles.biz
203.59.52.127	A	vowles.biz
203.59.52.185	A	203-59-52-185.dyn.iinet.net.au
203.59.52.236	PTR	203-59-52-236.dyn.iinet.net.au
203.59.53.48	A+PTR	203-59-53-48.dyn.iinet.net.au
203.59.53.82	A+PTR	203-59-53-82.dyn.iinet.net.au
203.59.53.97	PTR	203-59-53-97.dyn.iinet.net.au
203.59.53.165	A	ozlane.net
203.59.53.208	A+PTR	203-59-53-208.dyn.iinet.net.au
203.59.54.2	PTR	mail.leeuwinestate.com.au
203.59.54.3	A	gateway.triniteq.com
203.59.54.3	A	gateway.palmteq.com
203.59.54.5	A	mail.professionalswellsteadteam.com.au
203.59.54.7	PTR	mail.balancelegal.com.au
203.59.54.7	A	gazbe.iinet.net.au
203.59.54.9	PTR	lesperth.iinet.net.au
203.59.54.9	A	blukatindustries.com
203.59.54.9	A	mail.jl-photography.net
203.59.54.15	A+PTR	eastasia.iinet.net.au
203.59.54.22	PTR	lakeland.iinet.net.au
203.59.54.22	A	mail.esia.org.au
203.59.54.24	PTR	thehouse.com.au
203.59.54.24	A	omniware.com.au
203.59.54.24	A	mail.omniware.com.au
203.59.54.26	PTR	mail.commandit.com.au
203.59.54.26	A	mail.globalgrowth.com.au
203.59.54.33	PTR	timesheets.atteris.com.au
203.59.54.33	A	panda.iinet.net.au
203.59.54.34	PTR	atteris.com.au
203.59.54.38	A+PTR	bluering.iinet.net.au
203.59.54.38	A	mail.bluering.iinet.net.au
203.59.54.38	A	dittodigital.com
203.59.54.43	PTR	hobbes.iinet.net.au
203.59.54.44	A+PTR	rawadial.iinet.net.au
203.59.54.45	PTR	midas.ela.com.au
203.59.54.45	A	mail.hotelplanet.com.au
203.59.54.45	A	mail.ela.com.au
203.59.54.46	A	bambara.iinet.net.au
203.59.54.48	A	mail.nmtprojects.com.au
203.59.54.50	A+PTR	remote.panaceum.com.au
203.59.54.50	A	mail.unimedi.com.au
203.59.54.50	A	mail.panaceum.com.au
203.59.54.52	PTR	sdis.com.au
203.59.54.52	A	neerigen.iinet.net.au
203.59.54.55	PTR	nautronix.com.au
203.59.54.55	A	smith-gander.com
203.59.54.57	A	sericin.com.au
203.59.54.58	A	mail.contraflow.com.au
203.59.54.65	PTR	moorediesel.com
203.59.54.65	A	mail.mercurymetal.com.au
203.59.54.69	A+PTR	pvs04.iinet.net.au
203.59.54.78	A	pvs07.iinet.net.au
203.59.54.81	PTR	mail.mets.net.au
203.59.54.85	A+PTR	iline.iinet.net.au
203.59.54.87	PTR	grnl.com.au
203.59.54.87	A	sparktower.com.au
203.59.54.89	PTR	abbotts.com.au
203.59.54.89	A	tandcwa.net
203.59.54.89	A	dns.tandcwa.net
203.59.54.94	A+PTR	spectrum.iinet.net.au
203.59.54.95	PTR	prok.com.au
203.59.54.100	PTR	winthropps.wa.edu.au
203.59.54.107	PTR	psarospropertygroup.com
203.59.54.107	A	mail.defrancesch.com.au
203.59.54.120	PTR	westcoasteagles.com.au
203.59.54.123	PTR	mail.holidayplanet.com.au
203.59.54.123	A	mail.hotelplanet.com.au
203.59.54.125	PTR	mcx.com.au
203.59.54.128	A+PTR	mail.elevatorsales.com.au
203.59.54.128	A	mail.grantelevators.com.au
203.59.54.135	PTR	mtp.com.au
203.59.54.136	A	mail.antiskid.com.au
203.59.54.137	A+PTR	mail.turbotech.com.au
203.59.54.137	A	tsspl.com.au
203.59.54.137	A	mail.turboaustralia.com.au
203.59.54.143	A+PTR	fme.iinet.net.au
203.59.54.144	A	mail.boxt.com.au
203.59.54.150	PTR	diversifiedservices.com.au
203.59.54.151	A+PTR	mail.assay.ammtec.com.au
203.59.54.151	A	assay.ammtec.com.au
203.59.54.152	A	worldenglish.iinet.net.au
203.59.54.157	A+PTR	graylands.iinet.net.au
203.59.54.160	PTR	kisa.com
203.59.54.161	A	mail.fivestaronline.com.au
203.59.54.163	PTR	vos.com.au
203.59.54.164	PTR	data.net.au
203.59.54.164	A	mail.ecopg.com.au
203.59.54.167	A+PTR	mail.curtainworld.net.au
203.59.54.172	PTR	celt.iinet.net.au
203.59.54.180	PTR	truexpro.com
203.59.54.180	A	truexpro.com.au
203.59.54.181	PTR	truexpro.com
203.59.54.181	A	mail.db-engineers.com.au
203.59.54.181	A	mail.truexpro.com
203.59.54.184	PTR	westcs.com.au
203.59.54.184	A	mail.gam.org.au
203.59.54.186	A	anfwa.iinet.net.au
203.59.54.188	PTR	mail.bosspeople.com.au
203.59.54.190	PTR	workfocus.com
203.59.54.191	PTR	mail.wellard.com.au
203.59.54.191	A	mail.sofixit.com.au
203.59.54.192	PTR	peelhc.com.au
203.59.54.197	A+PTR	mail.westernlock.com.au
203.59.54.204	A	mail.idc-online.com
203.59.54.212	PTR	pct.com.au
203.59.54.214	PTR	portal.skycom.net.au
203.59.54.214	A	mail.maxpro.com.au
203.59.54.219	PTR	broad.com.au
203.59.54.220	PTR	ifp.net.au
203.59.54.223	A	bates.iinet.net.au
203.59.54.224	A	mail.tommotek.com
203.59.54.226	A+PTR	mail.roc.vivaphotography.com
203.59.54.231	A+PTR	sive.iinet.net.au
203.59.54.233	PTR	orixon.com.au
203.59.54.239	PTR	canasta.dalkeith.perth.anglican.org
203.59.54.239	A	mail.citynetwork.org.au
203.59.54.239	A	mail.dalkeithanglican.com
203.59.54.247	A+PTR	jenyjenk.iinet.net.au
203.59.55.177	PTR	mdc.wa.edu.au
203.59.55.209	PTR	lycopodium.com.au
203.59.55.212	PTR	lycopodium.com.au
203.59.55.241	PTR	icwa.wa.gov.au
203.59.55.243	PTR	icwa.wa.gov.au