Robtex

Up: 203.221.216.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.221.216.0/23
Down right: 203.221.218.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.221.216.38	A	essentiallydelicious.com.au
203.221.216.66	PTR	gw.warringah.nsw.gov.au
203.221.216.178	A	mail.nikkiandrews.com
203.221.216.190	A	190.216.221.203.static.comindico.com.au
203.221.216.246	A	mail2.australbricks.com.au
203.221.217.0	A	0.217.221.203.static.comindico.com.au
203.221.217.81	PTR	81.217.221.203.static.comindico.com.au
203.221.217.81	A	musichead.com.au
203.221.217.81	A	emi.com.au
203.221.217.162	PTR	mail.pogo.com.au
203.221.217.163	A+PTR	163.217.221.203.static.comindico.com.au
203.221.217.163	A	mail.mactofront.com.au
203.221.217.163	A	ns.bwrs.org.au
203.221.217.168	A+PTR	168.217.221.203.static.comindico.com.au
203.221.217.173	A	bwrs.org.au
203.221.217.177	A+PTR	177.217.221.203.static.comindico.com.au
203.221.217.177	A	mail.bwrs.org.au
203.221.217.180	PTR	180.217.221.203.static.comindico.com.au
203.221.217.180	A	mail.bwrs.org.au
203.221.217.180	A	ns.mactofront.com.au
203.221.217.227	A	mail.leagueonline.com.au
203.221.217.230	A+PTR	230.217.221.203.static.comindico.com.au
203.221.218.69	PTR	hinet.net.au
203.221.218.90	PTR	hinet.net.au
203.221.218.94	PTR	hinet.net.au
203.221.218.99	PTR	hinet.net.au
203.221.218.122	PTR	hinet.net.au
203.221.218.140	PTR	hinet.net.au
203.221.218.147	PTR	hinet.net.au
203.221.218.187	PTR	hinet.net.au