Robtex

Up: 203.12.4.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.12.4.0/25
Down right: 203.12.4.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.12.4.21	PTR	xeonous.iazen.com
203.12.4.23	PTR	mt1.make-tracks.com
203.12.4.23	A	mattsplat.com
203.12.4.23	A	jca.com.au
203.12.4.28	PTR	mt-syd-28.make-tracks.com
203.12.4.32	PTR	mt-syd-32.make-tracks.com
203.12.4.33	PTR	mt-syd-33.make-tracks.com
203.12.4.34	PTR	mt-syd-34.make-tracks.com
203.12.4.35	PTR	mt-syd-35.make-tracks.com
203.12.4.42	PTR	mt-syd-42.make-tracks.com
203.12.4.47	A	persephoneinvestments.com.au
203.12.4.47	A	persephoneinvestments.com
203.12.4.50	PTR	mt-syd-50.make-tracks.com
203.12.4.58	PTR	mt-syd-58.make-tracks.com
203.12.4.65	PTR	mt-syd-65.make-tracks.com
203.12.4.138	PTR	203-12-4-138.dyn.launtel.net.au
203.12.4.138	A	admin-bne.contiki.com
203.12.4.156	A+PTR	mail.autoonline.com.au
203.12.4.156	A	moradshahi.com.au
203.12.4.156	A	positivesupport.com.au
203.12.4.161	PTR	abedge.com.au
203.12.4.165	PTR	203-12-4-165.dyn.launtel.net.au
203.12.4.165	A	glenhasselman.com
203.12.4.166	A	hostmaster.xbrlgloballedger.com
203.12.4.166	A	xbrlgloballedger.com
203.12.4.167	A	smallbusinesspayrollservices.com.au
203.12.4.168	PTR	jarra2.sublimeip.com
203.12.4.168	A	smartfreightcloud.com
203.12.4.168	A	smartfreight.com
203.12.4.169	PTR	jarra3.sublimeip.com
203.12.4.169	A	smartfreightexpress.com.au
203.12.4.169	A	smartfreightexpress.ie
203.12.4.175	A+PTR	syd-testnode.cwie.net
203.12.4.186	PTR	post.yipyip.net
203.12.4.188	PTR	debut.yipyip.net
203.12.4.200	A	piman.sublimeip.com
203.12.4.201	A+PTR	miso.sublimeip.com
203.12.4.201	A	brisbane.dialix.com.au
203.12.4.201	A	gw-syd.justnet.info
203.12.4.202	A	justnet.co.nz
203.12.4.202	A	justnet.info
203.12.4.203	A	justin.justnet.com.au
203.12.4.203	A	justin.id.au
203.12.4.205	PTR	203-12-4-205.dyn.launtel.net.au
203.12.4.205	A	godomains.co.nz
203.12.4.205	A	pinku.sublimeip.com