Robtex

Up: 203.221.48.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 203.221.50.0/24
Down right: 203.221.51.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.221.50.2	PTR	203-221-50-2.tpgi.com.au
203.221.50.131	A	qtecsystems.net.au
203.221.50.131	A	qtecsystems.com.au
203.221.50.131	A	infoscape.com.au
203.221.50.149	A+PTR	mail.patties.com.au
203.221.50.183	PTR	www.resolvesoftware.com.au
203.221.50.183	A	resolvesoftwaregroup.net.au
203.221.50.183	A	resolvesoftwaregroup.net.nz
203.221.50.194	A	woofer.qtec.com.au
203.221.50.194	A	auscorefit.net.au
203.221.50.194	A	profloors.com.au
203.221.51.16	PTR	16.51.221.203.static.comindico.com.au
203.221.51.48	A	48.51.221.203.static.comindico.com.au
203.221.51.67	A	67.51.221.203.static.comindico.com.au
203.221.51.72	A+PTR	72.51.221.203.static.comindico.com.au
203.221.51.80	A+PTR	80.51.221.203.static.comindico.com.au
203.221.51.82	PTR	203-221-51-82.tpgi.com.au
203.221.51.86	PTR	203-221-51-86.tpgi.com.au
203.221.51.86	A	86.51.221.203.static.comindico.com.au
203.221.51.94	PTR	postoffice.oakhill.nsw.edu.au
203.221.51.128	PTR	203-221-51-128.tpgi.com.au
203.221.51.128	A	128.51.221.203.static.comindico.com.au
203.221.51.173	A+PTR	173.51.221.203.static.comindico.com.au
203.221.51.192	PTR	203-221-51-192.tpgi.com.au
203.221.51.192	A	192.51.221.203.static.comindico.com.au
203.221.51.198	A+PTR	198.51.221.203.static.comindico.com.au
203.221.51.212	A	212.51.221.203.static.comindico.com.au
203.221.51.214	A	214.51.221.203.static.comindico.com.au
203.221.51.217	A	217.51.221.203.static.comindico.com.au
203.221.51.250	PTR	203-221-51-250.tpgi.com.au