Robtex

Up: 58.6.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 58.6.64.0/22
Down right: 58.6.68.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
58.6.64.90	A+PTR	dsl-58-6-64-90.vic.westnet.com.au
58.6.64.90	A	fw.canines.com.au
58.6.64.92	A	ns.canines.com.au
58.6.64.102	A	dsl-58-6-64-102.vic.westnet.com.au
58.6.64.106	PTR	dsl-58-6-64-106.vic.westnet.com.au
58.6.64.106	A	anakin.muirfield.com.au
58.6.64.106	A	f250spares.com
58.6.64.126	A	dsl-58-6-64-126.vic.westnet.com.au
58.6.64.179	PTR	remote.pmcdre.com.au
58.6.64.179	A	remote.sherylupton.com.au
58.6.64.179	A	mail.paulmcdonaldrealestate.com.au
58.6.65.25	PTR	dsl-58-6-65-25.vic.westnet.com.au
58.6.65.33	PTR	mail.wastech.com.au
58.6.65.42	A	gateway.tribal.com.au
58.6.65.62	A	dsl-58-6-65-62.vic.westnet.com.au
58.6.65.63	A	dsl-58-6-65-63.vic.westnet.com.au
58.6.65.64	PTR	net1.topology.org
58.6.65.65	PTR	moose.topology.org
58.6.65.66	PTR	goose.topology.org
58.6.65.74	PTR	dingo.topology.org
58.6.65.110	A	dsl-58-6-65-110.vic.westnet.com.au
58.6.65.118	A	sga.lauf.id.au
58.6.65.118	A	ns1.deltrixco.com
58.6.65.118	A	ns1.lauf.id.au
58.6.65.137	PTR	dsl-58-6-65-137.vic.westnet.com.au
58.6.65.137	A	vja.org.au
58.6.65.137	A	remote.vja.org.au
58.6.65.179	A	server.mym.com.au
58.6.65.203	A+PTR	dsl-58-6-65-203.vic.westnet.com.au
58.6.65.205	A	dsl-58-6-65-205.vic.westnet.com.au
58.6.65.212	A	mail.cwassoc.com.au
58.6.65.250	PTR	dsl-58-6-65-250.vic.westnet.com.au
58.6.66.13	A	dsl-58-6-66-13.vic.westnet.com.au
58.6.66.15	A	mail.austpac.com.au
58.6.66.45	A	dsl-58-6-66-45.vic.westnet.com.au
58.6.66.110	A	dsl-58-6-66-110.vic.westnet.com.au
58.6.66.114	PTR	dsl-58-6-66-114.vic.westnet.com.au
58.6.66.114	A	mx2.arpatubes.net
58.6.66.185	A	mail2.virtutech.com.au
58.6.66.211	A+PTR	dsl-58-6-66-211.vic.westnet.com.au
58.6.66.233	A+PTR	dsl-58-6-66-233.vic.westnet.com.au
58.6.66.235	A	dsl-58-6-66-235.vic.westnet.com.au
58.6.66.254	A	dsl-58-6-66-254.vic.westnet.com.au
58.6.67.5	A	dsl-58-6-67-5.vic.westnet.com.au
58.6.67.34	A+PTR	dsl-58-6-67-34.vic.westnet.com.au
58.6.67.41	A+PTR	dsl-58-6-67-41.vic.westnet.com.au
58.6.67.44	A	dsl-58-6-67-44.vic.westnet.com.au
58.6.67.99	PTR	dsl-58-6-67-99.vic.westnet.com.au
58.6.67.99	A	my-ta22.com
58.6.67.99	A	smtp1.muirfield.com.au
58.6.67.147	A+PTR	dsl-58-6-67-147.vic.westnet.com.au
58.6.67.176	A+PTR	dsl-58-6-67-176.vic.westnet.com.au
58.6.67.176	A	mail.phillips.id.au
58.6.67.176	A	phillips.id.au
58.6.67.192	A+PTR	dsl-58-6-67-192.vic.westnet.com.au
58.6.67.209	PTR	dsl-58-6-67-209.vic.westnet.com.au
58.6.67.233	A+PTR	dsl-58-6-67-233.vic.westnet.com.au
58.6.68.90	A	dsl-58-6-68-90.vic.westnet.com.au
58.6.68.98	PTR	mail.hydrix.com
58.6.68.112	A	dsl-58-6-68-112.vic.westnet.com.au
58.6.68.178	PTR	mail.workshoparch.com.au
58.6.68.193	PTR	dsl-58-6-68-193.vic.westnet.com.au
58.6.68.193	A	spamfilter.mgbarnes.com.au
58.6.69.1	A	server.premierpr.com.au
58.6.69.6	A	dsl-58-6-69-6.vic.westnet.com.au
58.6.69.43	PTR	fallshaw.com.au
58.6.69.162	PTR	pbj.com.au
58.6.69.171	PTR	dsl-58-6-69-171.vic.westnet.com.au
58.6.69.183	A	theavatarscave.net
58.6.69.183	A	mail.chalmerscryptographic.com
58.6.69.183	A	mail.theavatarscave.net
58.6.70.28	A	sudan.com.au
58.6.70.104	PTR	igneous.hypersynergy.net
58.6.70.113	A	mail.chimeraracing.com
58.6.71.7	A	dsl-58-6-71-7.vic.westnet.com.au
58.6.71.19	A+PTR	dsl-58-6-71-19.vic.westnet.com.au
58.6.71.19	A	adprint.com.au
58.6.71.19	A	www.adprint.com.au
58.6.71.29	A	dsl-58-6-71-29.vic.westnet.com.au
58.6.71.35	A+PTR	dsl-58-6-71-35.vic.westnet.com.au
58.6.71.42	A+PTR	dsl-58-6-71-42.vic.westnet.com.au
58.6.71.42	A	ns1.geoinnovations.com
58.6.71.42	A	mail.geoinnovations.com.au
58.6.71.49	A+PTR	dsl-58-6-71-49.vic.westnet.com.au
58.6.71.74	A+PTR	dsl-58-6-71-74.vic.westnet.com.au
58.6.71.84	A	dsl-58-6-71-84.vic.westnet.com.au
58.6.71.92	A	dsl-58-6-71-92.vic.westnet.com.au
58.6.71.126	A	dsl-58-6-71-126.vic.westnet.com.au
58.6.71.128	A+PTR	dsl-58-6-71-128.vic.westnet.com.au
58.6.71.128	A	mail.prdwerribee.com.au
58.6.71.131	A+PTR	dsl-58-6-71-131.vic.westnet.com.au
58.6.71.138	A+PTR	dsl-58-6-71-138.vic.westnet.com.au
58.6.71.141	A	dsl-58-6-71-141.vic.westnet.com.au
58.6.71.145	A+PTR	mail.keatingco.com.au
58.6.71.163	A+PTR	dsl-58-6-71-163.vic.westnet.com.au
58.6.71.175	A	dsl-58-6-71-175.vic.westnet.com.au
58.6.71.181	A	dsl-58-6-71-181.vic.westnet.com.au
58.6.71.191	A	dsl-58-6-71-191.vic.westnet.com.au
58.6.71.206	A	mail.lagosmallgoods.com.au
58.6.71.211	A+PTR	dsl-58-6-71-211.vic.westnet.com.au
58.6.71.218	A+PTR	dsl-58-6-71-218.vic.westnet.com.au
58.6.71.221	A	dsl-58-6-71-221.vic.westnet.com.au
58.6.71.225	A+PTR	mail.mists.com.au
58.6.71.233	A+PTR	dsl-58-6-71-233.vic.westnet.com.au
58.6.71.251	A+PTR	dsl-58-6-71-251.vic.westnet.com.au