Robtex

Up: 124.158.16.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 124.158.18.0/24
Down right: 124.158.19.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
124.158.18.35	A	lo0.svgx02hpsw01.netfilter.com.au
124.158.18.35	A	svgx02hpsw01.netfilter.com.au
124.158.18.84	PTR	nsw.netfilter.com.au
124.158.18.85	PTR	nsw.netfilter.com.au
124.158.18.86	PTR	nsw.netfilter.com.au
124.158.18.92	PTR	start
124.158.18.95	PTR	end
124.158.18.96	PTR	start
124.158.18.111	PTR	end
124.158.18.112	PTR	start
124.158.18.140	PTR	ironport-mail-in.netfilter.com.au
124.158.18.141	A	ironport-out.netfilter.com.au
124.158.18.141	A	ironport-mail-out.netfilter.com.au
124.158.18.144	A+PTR	filter01nsw.netfilter.com.au
124.158.18.144	A	ironport-mail-in.netfilter.com.au
124.158.18.144	A	ironport-in.netfilter.com.au
124.158.18.145	PTR	filter02nsw.isnet.net.au
124.158.18.145	A	ironport-mail-in.netfilter.com.au
124.158.18.145	A	ironport-in.netfilter.com.au
124.158.18.150	PTR	buildhost.netfilter.com.au
124.158.18.152	A+PTR	ns1.netfilter.com.au
124.158.18.153	A+PTR	ns2.netfilter.com.au
124.158.18.156	A+PTR	virtualhost-1.netfilter.com.au
124.158.18.156	A	crimecity.com.au
124.158.18.156	A	tarsa.edu.au
124.158.18.157	PTR	ironport-logs.netfilter.com.au
124.158.18.187	PTR	hosted.theservicemanager.com
124.158.18.187	A	mx-59-167-167-97.theservicemanager.com
124.158.18.200	A+PTR	outlook.mbsydney.com.au
124.158.18.201	A+PTR	outlook.mbsydney.com.au
124.158.18.201	A	mbbrisbane.com.au
124.158.18.230	A+PTR	zscaler.nsw.netfilter.com.au
124.158.19.10	PTR	gi0-0-104.rt4.nsw.netfilter.com.au
124.158.19.20	A	au-gbl1-vmh1.rackcorp.com
124.158.19.21	PTR	au-gbl1-vhost2.rackcorp.com
124.158.19.21	A	burson.com.au
124.158.19.21	A	tolsonrural.com.au
124.158.19.25	PTR	124-158-19-25.rackcorp.com
124.158.19.26	PTR	api.rackcorp.net
124.158.19.28	PTR	www.rackcorp.com
124.158.19.30	PTR	secure.payandgo.com.au
124.158.19.32	PTR	rackcorp.com
124.158.19.33	PTR	rackcorp.com
124.158.19.44	A	barracuda.trundletray.com.au
124.158.19.44	A	barracuda.teralba.com
124.158.19.44	A	barracuda.altro.net.au
124.158.19.71	PTR	vivant-vctest1.rackcorp.com
124.158.19.73	A	au-gbl1-vhost3.rackcorp.com
124.158.19.74	A	lowjo.com.au
124.158.19.74	A	au-gbl1-vhost4.rackcorp.com
124.158.19.75	PTR	au-gbl1-vhost5.rackcorp.com
124.158.19.77	PTR	au-gbl1-mail1.rackcorp.com
124.158.19.127	PTR	rackcorp.com
124.158.19.134	A+PTR	mail.heartland.com.au
124.158.19.195	A	www.stpatrickscollegenews.nsw.edu.au
124.158.19.195	A	stpatrickscollegenews.nsw.edu.au
124.158.19.249	A+PTR	gi0-3-250.rt1.nsw.netfilter.com.au