Robtex

Up: 202.72.128.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 202.72.128.0/23
Down right: 202.72.130.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
202.72.128.1	PTR	mail.wn.com.au
202.72.128.1	A	mail.stepsyouthdance.com.au
202.72.128.1	A	mail.lawnshotel.com
202.72.128.4	PTR	outbound-relaysa01.westnet.com.au
202.72.128.7	PTR	outbound-relaysa02.westnet.com.au
202.72.128.33	PTR	bandicoot.wn.com.au
202.72.128.46	PTR	bandicoot.wn.com.au
202.72.128.70	PTR	mail.westnet.com.au
202.72.128.70	A	mail.radiantdayspa.com.au
202.72.128.71	PTR	bandicoot.wn.com.au
202.72.128.71	A	mail2.westnet.com.au
202.72.128.72	PTR	bandicoot.wn.com.au
202.72.128.74	PTR	bandicoot.wn.com.au
202.72.128.83	PTR	bandicoot.wn.com.au
202.72.128.85	PTR	bandicoot.wn.com.au
202.72.128.120	PTR	bandicoot.wn.com.au
202.72.128.120	A	home.it.net.au
202.72.129.11	A+PTR	bacchus.westnet.com.au
202.72.129.11	A	bacchus.wn.com.au
202.72.129.14	PTR	dewino.westnet.com.au
202.72.129.15	PTR	subterfuge.westnet.com.au
202.72.129.16	PTR	senator.westnet.com.au
202.72.129.67	PTR	dsp-202-72-129-67.perth.westnet.com.au
202.72.129.72	PTR	dsp-202-72-129-72.perth.westnet.com.au
202.72.129.73	PTR	dsp-202-72-129-73.perth.westnet.com.au
202.72.129.79	PTR	dsp-202-72-129-79.perth.westnet.com.au
202.72.129.82	PTR	dsp-202-72-129-82.perth.westnet.com.au
202.72.129.95	PTR	dsp-202-72-129-95.perth.westnet.com.au
202.72.129.99	PTR	dsp-202-72-129-99.perth.westnet.com.au
202.72.129.100	PTR	dsp-202-72-129-100.perth.westnet.com.au
202.72.129.102	PTR	dsp-202-72-129-102.perth.westnet.com.au
202.72.129.104	PTR	dsp-202-72-129-104.perth.westnet.com.au
202.72.129.110	PTR	dsp-202-72-129-110.perth.westnet.com.au
202.72.129.112	PTR	dsp-202-72-129-112.perth.westnet.com.au
202.72.129.113	PTR	dsp-202-72-129-113.perth.westnet.com.au
202.72.129.114	PTR	dsp-202-72-129-114.perth.westnet.com.au
202.72.129.115	PTR	dsp-202-72-129-115.perth.westnet.com.au
202.72.129.116	PTR	dsp-202-72-129-116.perth.westnet.com.au
202.72.129.119	PTR	dsp-202-72-129-119.perth.westnet.com.au
202.72.129.120	PTR	dsp-202-72-129-120.perth.westnet.com.au
202.72.129.123	PTR	dsp-202-72-129-123.perth.westnet.com.au
202.72.129.126	PTR	dsp-202-72-129-126.perth.westnet.com.au
202.72.129.127	PTR	dsp-202-72-129-127.perth.westnet.com.au
202.72.129.132	PTR	dsp-202-72-129-132.perth.westnet.com.au
202.72.129.136	PTR	dsp-202-72-129-136.perth.westnet.com.au
202.72.129.138	PTR	dsp-202-72-129-138.perth.westnet.com.au
202.72.129.142	PTR	webmail02.westnet.com.au
202.72.129.144	PTR	webmail04.westnet.com.au
202.72.129.155	PTR	dsp-202-72-129-155.perth.westnet.com.au
202.72.129.156	PTR	dsp-202-72-129-156.perth.westnet.com.au
202.72.129.161	PTR	dsp-202-72-129-161.perth.westnet.com.au
202.72.129.164	PTR	dsp-202-72-129-164.perth.westnet.com.au
202.72.129.168	PTR	dsp-202-72-129-168.perth.westnet.com.au
202.72.129.176	PTR	dsp-202-72-129-176.perth.westnet.com.au
202.72.129.177	PTR	dsp-202-72-129-177.perth.westnet.com.au
202.72.129.178	PTR	dsp-202-72-129-178.perth.westnet.com.au
202.72.129.182	PTR	dsp-202-72-129-182.perth.westnet.com.au
202.72.129.183	PTR	dsp-202-72-129-183.perth.westnet.com.au
202.72.129.187	PTR	dsp-202-72-129-187.perth.westnet.com.au
202.72.129.195	PTR	dsp-202-72-129-195.perth.westnet.com.au
202.72.129.197	PTR	dsp-202-72-129-197.perth.westnet.com.au
202.72.129.200	PTR	dsp-202-72-129-200.perth.westnet.com.au
202.72.129.206	PTR	dsp-202-72-129-206.perth.westnet.com.au
202.72.129.214	PTR	dsp-202-72-129-214.perth.westnet.com.au
202.72.129.221	PTR	dsp-202-72-129-221.perth.westnet.com.au
202.72.129.222	PTR	dsp-202-72-129-222.perth.westnet.com.au
202.72.129.223	PTR	dsp-202-72-129-223.perth.westnet.com.au
202.72.129.229	PTR	dsp-202-72-129-229.perth.westnet.com.au
202.72.129.230	PTR	dsp-202-72-129-230.perth.westnet.com.au
202.72.129.234	PTR	dsp-202-72-129-234.perth.westnet.com.au
202.72.129.235	PTR	dsp-202-72-129-235.perth.westnet.com.au
202.72.129.239	PTR	dsp-202-72-129-239.perth.westnet.com.au
202.72.129.243	PTR	dsp-202-72-129-243.perth.westnet.com.au
202.72.129.251	PTR	dsp-202-72-129-251.perth.westnet.com.au
202.72.129.254	PTR	dsp-202-72-129-254.perth.westnet.com.au
202.72.130.2	A+PTR	dip-202-72-130-2.wa.westnet.com.au
202.72.130.4	A+PTR	dip-202-72-130-4.wa.westnet.com.au
202.72.130.6	A+PTR	dip-202-72-130-6.wa.westnet.com.au
202.72.130.10	A+PTR	dip-202-72-130-10.wa.westnet.com.au
202.72.130.11	A+PTR	dip-202-72-130-11.wa.westnet.com.au
202.72.130.18	PTR	dip-202-72-130-18.wa.westnet.com.au
202.72.130.18	A	quokka.wn.com.au
202.72.130.19	A+PTR	dip-202-72-130-19.wa.westnet.com.au
202.72.130.20	A	ironportmx02.sahg.com.au
202.72.130.21	A	ironportmx01.sahg.com.au
202.72.130.23	A+PTR	dip-202-72-130-23.wa.westnet.com.au
202.72.130.25	PTR	dsp-202-72-130-25.perth.westnet.com.au
202.72.130.27	A+PTR	dip-202-72-130-27.wa.westnet.com.au
202.72.130.30	PTR	dip-202-72-130-30.wa.westnet.com.au
202.72.130.46	PTR	mail.sjpgroup.com.au
202.72.130.46	A	mail.redinkinteriors.com.au
202.72.130.64	PTR	mail.swanexhibitions.com.au
202.72.130.67	PTR	dip-202-72-130-67.wa.westnet.com.au
202.72.130.78	PTR	dip-202-72-130-78.wa.westnet.com.au
202.72.130.84	A+PTR	dip-202-72-130-84.wa.westnet.com.au
202.72.130.88	PTR	dip-202-72-130-88.wa.westnet.com.au
202.72.130.89	PTR	gw.chittering.wa.gov.au
202.72.130.90	PTR	lulu.marketunited.com
202.72.130.93	PTR	dip-202-72-130-93.wa.westnet.com.au
202.72.130.97	A+PTR	dip-202-72-130-97.wa.westnet.com.au
202.72.130.98	A+PTR	bbmail.blackboxcontrol.com.au
202.72.130.98	A	mail.bbxmsg.com
202.72.130.98	A	mail.blackboxcontrol.com.au
202.72.130.100	A	dip-202-72-130-100.wa.westnet.com.au
202.72.130.104	A+PTR	dip-202-72-130-104.wa.westnet.com.au
202.72.130.105	A+PTR	dip-202-72-130-105.wa.westnet.com.au
202.72.130.106	PTR	advante.com.au
202.72.130.108	PTR	webequip.com.au
202.72.130.109	PTR	mail.sthballajura.wa.edu.au
202.72.130.110	PTR	mx2.tanami.com.au
202.72.130.116	PTR	mail.sjsmoora.wa.edu.au
202.72.130.126	PTR	mail.diabeteswa.com.au
202.72.130.133	A	aibt.net.au
202.72.130.134	A+PTR	external.westnet.com.au
202.72.130.150	PTR	gi3-1-0.lns4.perth.westnet.com.au
202.72.130.157	PTR	gi4-23.per-core.wa.westnet.com.au
202.72.130.158	PTR	gi3-1-0.dsl-lns3.wa.westnet.com.au
202.72.130.174	PTR	gi3-0-0.dsl-lns3.wa.westnet.com.au
202.72.130.178	PTR	mail.compubiz.com.au
202.72.130.196	PTR	mail.dehaas.com.au
202.72.130.197	PTR	mail.dfl.com.au
202.72.130.200	A+PTR	dip-202-72-130-200.wa.westnet.com.au
202.72.130.212	PTR	mail.wongan.wa.gov.au