Robtex

Up: 203.23.152.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.23.156.0/23
Down right: 203.23.158.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.23.156.102	PTR	syd-156-102.ozonline.com.au
203.23.156.143	A+PTR	syd-156-143.ozonline.com.au
203.23.156.167	A+PTR	syd-156-167.ozonline.com.au
203.23.156.202	A	syd-156-202.ozonline.com.au
203.23.157.1	A+PTR	as-syd-7-1.ozonline.com.au
203.23.159.1	PTR	ipphone1.ozonline.com.au
203.23.159.11	PTR	ipphone11.ozonline.com.au
203.23.159.26	PTR	ipphone26.ozonline.com.au
203.23.159.52	PTR	vm-52.ozonline.com.au
203.23.159.63	A+PTR	vm-63.ozonline.com.au
203.23.159.172	A	ozonline.com.au
203.23.159.173	A	www.australiaonline.net.au
203.23.159.182	A	sw-bur-1.ozonline.com.au
203.23.159.188	A+PTR	cor-cityrd-1.ozonline.com.au
203.23.159.188	A	cor-mel-1.ozonline.com.au
203.23.159.189	A	sw-cityrd-1.ozonline.com.au
203.23.159.190	A+PTR	bdr-cityrd-1.ozonline.com.au
203.23.159.193	A	lizzyinternet.com.au
203.23.159.193	A	lizzybroadband.net.au
203.23.159.193	A	lizzybroadband.com
203.23.159.194	PTR	coloc-gw.ozonline.com.au
203.23.159.196	A	lnstwe-vic-2.ozonline.com.au
203.23.159.197	A	lns-aaptdsl-1.ozonline.com.au
203.23.159.199	PTR	oldwiki.ozonline.com.au
203.23.159.199	A	ozonline.com.au
203.23.159.199	A	1300easyisp.net
203.23.159.201	A+PTR	wills.ozonline.com.au
203.23.159.201	A	greentelevision.com
203.23.159.205	A	accel.ozonline.com.au
203.23.159.206	A+PTR	horde.ozonline.com.au
203.23.159.206	A	horde.lizzy.com.au
203.23.159.209	A	sw-mel-6.ozonline.com.au
203.23.159.210	A+PTR	ss3.ozonline.com.au
203.23.159.212	A	cor-mel-2.ozonline.com.au
203.23.159.214	A+PTR	mel-2.lizzyhosting.com.au
203.23.159.214	A	ns2.lizzyhosting.com.au
203.23.159.214	A	ns2.scot.net.au
203.23.159.217	A+PTR	mailscanner3.ozonline.com.au
203.23.159.218	A+PTR	dcc.ozonline.com.au
203.23.159.226	A	mailscanner1.ozonline.com.au
203.23.159.231	A	as-mel-4.ozonline.com.au
203.23.159.232	A	sw-mel-4.ozonline.com.au
203.23.159.233	A	con-mel-1.ozonline.com.au
203.23.159.235	A	woomera.ozonline.com.au
203.23.159.237	A	as-mel-2.ozonline.com.au
203.23.159.240	A	sw003.ozonline.com.au
203.23.159.241	A	sw001.ozonline.com.au
203.23.159.243	A	ar010.ozonline.com.au
203.23.159.244	A	pabx-com-1.ozonline.com.au
203.23.159.247	PTR	sharedwww2.ozonline.com.au
203.23.159.247	A	www.australiaonline.net.au
203.23.159.247	A	lizzyinternet.com.au
203.23.159.250	PTR	sharedwww.ozonline.com.au
203.23.159.250	A	designplus.com.au
203.23.159.250	A	vinmarque.com.au