Robtex

Up: 203.221.40.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.221.44.0/23
Down right: 203.221.46.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.221.44.35	PTR	203-221-44-35.tpgi.com.au
203.221.44.42	A	mail.trustedcloud.com.au
203.221.44.47	PTR	47.44.221.203.dsl.dynamic.lns01-waym-adl.comindico.com.au
203.221.44.47	A	ns1.trustedcloud.com.au
203.221.44.51	PTR	203-221-44-51.tpgi.com.au
203.221.44.52	PTR	203-221-44-52.tpgi.com.au
203.221.44.60	PTR	mx1.trustedcloud.com.au
203.221.44.60	A	mx1.tbh.com.au
203.221.44.60	A	tc1mx1.trustedcloud.com.au
203.221.44.63	PTR	63.44.221.203.dsl.dynamic.lns01-waym-adl.comindico.com.au
203.221.44.96	PTR	203-221-44-96.tpgi.com.au
203.221.44.114	PTR	114.44.221.203.dsl.dynamic.lns01-waym-adl.comindico.com.au
203.221.44.114	A	clickpos.biz
203.221.44.144	PTR	144.44.221.203.dsl.dynamic.lns01-waym-adl.comindico.com.au
203.221.44.200	PTR	200.44.221.203.static.comindico.com.au
203.221.44.200	A	cpurn.net
203.221.44.200	A	milura.com.au
203.221.44.209	PTR	203-221-44-209.tpgi.com.au
203.221.44.209	A	209.44.221.203.static.comindico.com.au
203.221.44.219	PTR	219.44.221.203.static.comindico.com.au
203.221.44.220	A	thelearningfactory.com.au
203.221.44.221	PTR	221.44.221.203.static.comindico.com.au
203.221.44.221	A	mx0.milura.com.au
203.221.45.7	A+PTR	ns1.bluefirems.com.au
203.221.45.9	A	smtp.bluefirems.com.au
203.221.45.16	PTR	203-221-45-16.tpgi.com.au
203.221.45.16	A	filter.bluefirems.com.au
203.221.45.30	PTR	203-221-45-30.tpgi.com.au
203.221.45.30	A	www.bluefirems.com.au
203.221.45.142	PTR	mail.anglicare.org.au
203.221.46.16	PTR	203-221-46-16.tpgi.com.au
203.221.46.16	A	16.46.221.203.static.comindico.com.au
203.221.46.18	A	abnex03.comscentre.net.au
203.221.46.19	PTR	203-221-46-19.tpgi.com.au
203.221.46.19	A	comscentre.net.au
203.221.46.19	A	comscentre.com.au
203.221.46.20	PTR	203-221-46-20.tpgi.com.au
203.221.46.20	A	abnew01.comscentre.net.au
203.221.46.20	A	smtp.ccnw.net.au
203.221.46.21	PTR	203-221-46-21.tpgi.com.au
203.221.46.23	PTR	23.46.221.203.static.comindico.com.au
203.221.46.62	PTR	203-221-46-62.tpgi.com.au
203.221.46.62	A	62.46.221.203.static.comindico.com.au
203.221.46.82	PTR	203-221-46-82.tpgi.com.au
203.221.46.129	PTR	dominos.com.au
203.221.46.185	A	mail.xtream.com.au
203.221.46.190	A+PTR	190.46.221.203.static.comindico.com.au
203.221.46.196	A	196.46.221.203.static.comindico.com.au
203.221.46.199	PTR	203-221-46-199.tpgi.com.au
203.221.46.199	A	199.46.221.203.static.comindico.com.au