Robtex

Up: 203.58.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 203.58.0.0/22
Down right: 203.58.4.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.58.0.0	PTR	203-58-0-000.static.tpgi.com.au
203.58.0.2	PTR	203-58-0-002.static.tpgi.com.au
203.58.0.34	A	mail.maple-brownabbott.com
203.58.0.34	A	mail.maple-brownabbott.com.au
203.58.0.34	A	mail2.maple-brownabbott.com
203.58.0.75	PTR	ironport.catholicmission.org.au
203.58.0.75	A	mx1.catholicmission.org.au
203.58.0.114	PTR	203-58-0-114.static.tpgi.com.au
203.58.0.122	PTR	mail.mozi.com.au
203.58.0.122	A	mx1.mozi.com.au
203.58.0.122	A	mail.bestandless.net.au
203.58.0.155	A+PTR	203-58-0-155.static.tpgi.com.au
203.58.0.155	A	pacificbmg.com.au
203.58.0.170	PTR	203-58-0-170.static.tpgi.com.au
203.58.0.170	A	ns3.rhomberg.com
203.58.0.211	A	mail.willoughbyleisure.com.au
203.58.0.220	A	victoriawalk.com.au
203.58.1.2	A	203-58-1-2.static.tpgi.com.au
203.58.1.34	A	mail.macanz.com
203.58.1.98	A+PTR	203-58-1-98.static.tpgi.com.au
203.58.1.130	A+PTR	203-58-1-130.static.tpgi.com.au
203.58.1.163	PTR	203-58-1-163.static.tpgi.com.au
203.58.1.163	A	blogs.ludus.me
203.58.1.163	A	mail.ludus.me
203.58.1.198	A	203-58-1-198.static.tpgi.com.au
203.58.1.226	PTR	mail.ridbc.org.au
203.58.1.226	PTR	webmail.ridbc.org.au
203.58.3.3	PTR	203-58-3-3.tpgi.com.au
203.58.3.3	A	champmbo.com
203.58.3.26	PTR	203-58-3-26.tpgi.com.au
203.58.3.68	A	mail.mid-tech.net
203.58.3.102	A	gateway.dmsmaritime.com
203.58.3.104	A+PTR	203-58-3-104.tpgi.com.au
203.58.3.109	A	essencemedia.com.au
203.58.3.115	A+PTR	203-58-3-115.tpgi.com.au
203.58.3.134	A	203-58-3-134.tpgi.com.au
203.58.3.137	PTR	203-58-3-137.tpgi.com.au
203.58.3.137	A	mail.dmsmaritime.com
203.58.3.139	A	acvamps.dmsmaritime.com
203.58.3.141	A	203-58-3-141.tpgi.com.au
203.58.3.154	A+PTR	203-58-3-154.tpgi.com.au
203.58.3.192	PTR	203-58-3-192.tpgi.com.au
203.58.3.226	PTR	mail.songzu.com
203.58.3.245	A	203-58-3-245.tpgi.com.au
203.58.3.252	A	203-58-3-252.tpgi.com.au
203.58.4.2	PTR	mail.bowenlegal.com.au
203.58.4.76	A	www.smokeball.com.my
203.58.4.96	PTR	203-58-4-96.static.tpgi.com.au
203.58.4.115	A	mail.fived.com.au
203.58.4.124	A	203-58-4-124.static.tpgi.com.au
203.58.4.154	PTR	mail.autosportsprestige.com.au
203.58.4.162	PTR	203-58-4-162.static.tpgi.com.au
203.58.4.164	A	203-58-4-164.static.tpgi.com.au
203.58.4.184	PTR	203-58-4-184.static.tpgi.com.au
203.58.4.210	A+PTR	203-58-4-210.static.tpgi.com.au
203.58.4.218	A+PTR	203-58-4-218.static.tpgi.com.au
203.58.6.217	PTR	mail.quay-shipping.com
203.58.6.217	PTR	mail.quay-solutions.com
203.58.7.40	PTR	203-58-7-040.static.tpgi.com.au
203.58.7.70	A	dkm.safenetbox.biz
203.58.7.78	A	mail.nutrifresh.com.au
203.58.7.78	A	mail.teamoshea.com
203.58.7.78	A	mail.tricare.com.au
203.58.7.80	PTR	mail.landpartners.com.au
203.58.7.81	PTR	mail.landpartners.com.au
203.58.7.82	PTR	mail.landpartners.com.au
203.58.7.83	PTR	mail.landpartners.com.au
203.58.7.88	A+PTR	mail.landpartners.com.au
203.58.7.89	PTR	mail.landpartners.com.au
203.58.7.91	PTR	mail.landpartners.com.au
203.58.7.96	PTR	203-58-7-096.static.tpgi.com.au
203.58.7.102	A	203-58-7-102-gra-ts1-2600.tpgi.com.au
203.58.7.102	A	203-58-7-102.static.tpgi.com.au
203.58.7.103	A	203-58-7-103-gra-ts1-2600.tpgi.com.au
203.58.7.111	A	203-58-7-111-gra-ts1-2600.tpgi.com.au
203.58.7.112	A	203-58-7-112-gra-ts1-2600.tpgi.com.au
203.58.7.114	PTR	203-58-7-114.static.tpgi.com.au
203.58.7.124	A	203-58-7-124-gra-ts1-2600.tpgi.com.au
203.58.7.126	A	203-58-7-126-gra-ts1-2600.tpgi.com.au
203.58.7.127	A	203-58-7-127-gra-ts1-2600.tpgi.com.au
203.58.7.129	A	gra-gw.tpgi.com.au
203.58.7.137	A	203-58-7-137-gra-ts1-2600.tpgi.com.au
203.58.7.138	A	gra-pwr1.tpgi.com.au
203.58.7.143	A	203-58-7-143-gra-ts1-2600.tpgi.com.au
203.58.7.145	PTR	dkm.safenetbox.biz
203.58.7.145	PTR	mail.dkm.com.au
203.58.7.145	PTR	mx1.dkm.com.au
203.58.7.146	A	203-58-7-146-gra-ts1-2600.tpgi.com.au
203.58.7.147	A+PTR	203-58-7-147.static.tpgi.com.au
203.58.7.152	PTR	203-58-7-152.static.tpgi.com.au
203.58.7.152	A	203-58-7-152-gra-ts1-2600.tpgi.com.au
203.58.7.158	A	203-58-7-158-gra-ts1-2600.tpgi.com.au
203.58.7.159	A	203-58-7-159-gra-ts1-2600.tpgi.com.au
203.58.7.160	A	203-58-7-160-gra-ts1-2600.tpgi.com.au
203.58.7.162	PTR	mail.comscentre.com
203.58.7.162	A	comindico-link.comscentre.com
203.58.7.166	A	ns2.comscentre.net.au
203.58.7.166	A	abnex02.comscentre.net.au
203.58.7.171	A	203-58-7-171-gra-ts1-2600.tpgi.com.au
203.58.7.173	A	203-58-7-173-gra-ts1-2600.tpgi.com.au
203.58.7.182	A	203-58-7-182-gra-ts1-2600.tpgi.com.au
203.58.7.191	A	203-58-7-191-gra-ts1-2600.tpgi.com.au
203.58.7.200	PTR	203-58-7-200.static.tpgi.com.au
203.58.7.201	A	203-58-7-201-gra-ts1-2600.tpgi.com.au
203.58.7.202	A	203-58-7-202-gra-ts1-2600.tpgi.com.au
203.58.7.206	A	203-58-7-206-gra-ts1-2600.tpgi.com.au
203.58.7.207	A	203-58-7-207-gra-ts1-2600.tpgi.com.au
203.58.7.211	PTR	203-58-7-211.static.tpgi.com.au
203.58.7.211	A	203-58-7-211-gra-ts1-2600.tpgi.com.au
203.58.7.212	A	203-58-7-212-gra-ts1-2600.tpgi.com.au
203.58.7.214	A	203-58-7-214-gra-ts1-2600.tpgi.com.au
203.58.7.216	A	203-58-7-216-gra-ts1-2600.tpgi.com.au
203.58.7.224	PTR	203-58-7-224.static.tpgi.com.au
203.58.7.224	A	203-58-7-224-gra-ts1-2600.tpgi.com.au
203.58.7.228	A	203-58-7-228-gra-ts1-2600.tpgi.com.au
203.58.7.229	A	203-58-7-229-gra-ts1-2600.tpgi.com.au
203.58.7.237	A	203-58-7-237-gra-ts1-2600.tpgi.com.au
203.58.7.246	A	203-58-7-246-gra-ts1-2600.tpgi.com.au
203.58.7.250	PTR	mail.dreamfarm.com
203.58.7.250	A	mail.dreamfarm.eu