Robtex

Up: 203.23.144.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 203.23.152.0/22
Down right: 203.23.156.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.23.153.21	A	adsl-mel-2-21.ozonline.com.au
203.23.153.27	A+PTR	adsl-mel-2-27.ozonline.com.au
203.23.153.37	A	adsl-mel-2-37.ozonline.com.au
203.23.153.39	A	adsl-mel-2-39.ozonline.com.au
203.23.153.50	A+PTR	adsl-mel-2-50.ozonline.com.au
203.23.153.62	A	adsl-mel-2-62.ozonline.com.au
203.23.153.72	A+PTR	adsl-mel-2-72.ozonline.com.au
203.23.153.75	A+PTR	adsl-mel-2-75.ozonline.com.au
203.23.153.76	A	adsl-mel-2-76.ozonline.com.au
203.23.153.85	A	adsl-mel-2-85.ozonline.com.au
203.23.153.89	A+PTR	adsl-mel-2-89.ozonline.com.au
203.23.153.97	A+PTR	adsl-mel-2-97.ozonline.com.au
203.23.153.123	A+PTR	adsl-mel-2-123.ozonline.com.au
203.23.153.129	PTR	adsl-mel-2-129.ozonline.com.au
203.23.153.130	A+PTR	adsl-mel-2-130.ozonline.com.au
203.23.153.144	A+PTR	adsl-mel-2-144.ozonline.com.au
203.23.153.198	A	adsl-mel-2-198.ozonline.com.au
203.23.153.200	PTR	adsl-mel-2-200.ozonline.com.au
203.23.153.206	A	adsl-mel-2-206.ozonline.com.au
203.23.153.212	A	adsl-mel-2-212.ozonline.com.au
203.23.153.220	A	adsl-mel-2-220.ozonline.com.au
203.23.153.227	A+PTR	adsl-mel-2-227.ozonline.com.au
203.23.153.233	A+PTR	adsl-mel-2-233.ozonline.com.au
203.23.153.235	PTR	adsl-mel-2-235.ozonline.com.au
203.23.153.242	PTR	adsl-mel-2-242.ozonline.com.au
203.23.153.251	A+PTR	adsl-mel-2-251.ozonline.com.au
203.23.153.252	A	adsl-mel-2-252.ozonline.com.au
203.23.154.25	PTR	adsl-mel-1-25.ozonline.com.au
203.23.154.25	A	sheol.smith.dropbear.id.au
203.23.154.25	A	pamelaconder.com
203.23.154.175	A	mail.nylec.com.au
203.23.154.179	PTR	adsl-mel-1-179.ozonline.com.au
203.23.154.179	A	mail.smoothisland.com.au
203.23.154.199	A	mail.onemda.com.au
203.23.154.211	PTR	adsl-mel-1-211.ozonline.com.au
203.23.154.211	A	mail.southcentralcricket.org
203.23.155.1	A+PTR	botany.ozonline.com.au
203.23.155.1	A	mx2.ozonline.com.au
203.23.155.5	A	dns3.ozonline.com.au
203.23.155.252	A+PTR	cor-syd-1.ozonline.com.au
203.23.156.143	A	syd-156-143.ozonline.com.au
203.23.156.167	A	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
203.23.159.63	A	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	cor-mel-1.ozonline.com.au
203.23.159.188	A	cor-cityrd-1.ozonline.com.au
203.23.159.189	A	sw-cityrd-1.ozonline.com.au
203.23.159.190	A	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
203.23.159.199	A	ozonline.com.au
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	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	mel-2.lizzyhosting.com.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	A	www.australiaonline.net.au
203.23.159.247	A	lizzyinternet.com.au
203.23.159.247	A	lizzybroadband.net.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