Robtex

Up: 203.173.8.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.173.8.0/25
Down right: 203.173.8.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.173.8.1	PTR	203-173-8-1.perm.iinet.net.au
203.173.8.12	PTR	203-173-8-12.perm.iinet.net.au
203.173.8.57	PTR	203-173-8-57.perm.iinet.net.au
203.173.8.57	A	abmelec.com.au
203.173.8.57	A	www.abmelec.com.au
203.173.8.58	PTR	203-173-8-58.perm.iinet.net.au
203.173.8.58	A	mlandc.com.au
203.173.8.59	PTR	203-173-8-59.perm.iinet.net.au
203.173.8.59	A	mail.abmelec.com.au
203.173.8.61	A+PTR	waterfrontcottages.com.au
203.173.8.61	A	mail.waterfrontcottages.com.au
203.173.8.62	PTR	203-173-8-62.perm.iinet.net.au
203.173.8.62	A	myvirtualaccountant.com.au
203.173.8.66	PTR	203-173-8-66.perm.iinet.net.au
203.173.8.66	A	mail.ttarchitecture.com.au
203.173.8.81	A+PTR	203-173-8-81.perm.iinet.net.au
203.173.8.100	PTR	203-173-8-100.perm.iinet.net.au
203.173.8.100	A	iqon.com.au
203.173.8.100	A	mail.iqon.com.au
203.173.8.114	A+PTR	203-173-8-114.perm.iinet.net.au
203.173.8.114	A	gcubed.com
203.173.8.114	A	cama.net.au
203.173.8.130	PTR	203-173-8-130.perm.iinet.net.au
203.173.8.130	A	mail.ascentconsulting.com.au
203.173.8.130	A	ascentconsulting.com.au
203.173.8.132	A	mail-gw.dwsolutions.com.au
203.173.8.152	A	203-173-8-152.perm.iinet.net.au
203.173.8.154	PTR	203-173-8-154.perm.iinet.net.au
203.173.8.163	PTR	203-173-8-163.perm.iinet.net.au
203.173.8.163	A	mail.austethical.com
203.173.8.173	PTR	test.dotnetsolutions.com.au
203.173.8.173	A	beautybeds.com.au
203.173.8.194	A+PTR	mail.kjblaw.com.au
203.173.8.209	A	mail-gw.argentina.org.au
203.173.8.217	A	mail.sageadvice.com.au
203.173.8.230	A+PTR	mail.diabetesaustralia.com.au
203.173.8.230	A	ns1.diabetesaustralia.com.au