Robtex

Up: 203.31.48.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.31.48.0/25
Down right: 203.31.48.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.31.48.1	A+PTR	bdr-cbr-1.netspeed.com.au
203.31.48.5	PTR	www2.austcolled.com.au
203.31.48.5	PTR	hosting3.netspeed.com.au
203.31.48.5	A	nonoisesharing.com.au
203.31.48.6	A+PTR	www.irun.com.au
203.31.48.6	A	irun.com.au
203.31.48.7	A+PTR	ns1.netspeed.com.au
203.31.48.7	A	ns1.lei.net.au
203.31.48.7	A	ns1.apex.net.au
203.31.48.8	PTR	203-31-48-8.static.netspeed.com.au.48.31.203.in-addr.arpa
203.31.48.9	PTR	hosting2.netspeed.com.au
203.31.48.9	A	pynfall.com
203.31.48.9	A	dwalker.id.au
203.31.48.10	PTR	webmail.netspeed.com.au
203.31.48.11	A+PTR	ns3.netspeed.com.au
203.31.48.11	A	ns4.netspeed.com.au
203.31.48.11	A	smartpacific.com.au
203.31.48.12	PTR	news.the-edge.net.au
203.31.48.12	A	mail.bayhuntercharters.com
203.31.48.12	A	mail.islamicbanknotes.com
203.31.48.14	A	ta.netspeed.com.au
203.31.48.18	PTR	203-31-48-18.static.netspeed.com.au.48.31.203.in-addr.arpa
203.31.48.19	PTR	203-31-48-19.static.netspeed.com.au.48.31.203.in-addr.arpa
203.31.48.22	PTR	hosting1.netspeed.com.au
203.31.48.22	A	amberfs.com.au
203.31.48.22	A	wae.com.au
203.31.48.24	PTR	203-31-48-24.static.netspeed.com.au.48.31.203.in-addr.arpa
203.31.48.33	PTR	mailhost.netspeed.com.au
203.31.48.33	A	mail.hearingawarenessweek.org.au
203.31.48.42	PTR	203-31-48-42.static.netspeed.com.au
203.31.48.47	PTR	203-31-48-47.static.netspeed.com.au
203.31.48.52	PTR	203-31-48-52.static.netspeed.com.au
203.31.48.58	PTR	203-31-48-58.static.netspeed.com.au
203.31.48.66	PTR	203-31-48-66.static.netspeed.com.au
203.31.48.68	PTR	203-31-48-68.static.netspeed.com.au
203.31.48.70	PTR	203-31-48-70.static.netspeed.com.au
203.31.48.72	PTR	203-31-48-72.static.netspeed.com.au
203.31.48.73	PTR	203-31-48-73.static.netspeed.com.au
203.31.48.84	PTR	203-31-48-84.static.netspeed.com.au
203.31.48.94	PTR	203-31-48-94.static.netspeed.com.au
203.31.48.98	PTR	203-31-48-98.static.netspeed.com.au
203.31.48.105	PTR	203-31-48-105.static.netspeed.com.au
203.31.48.131	A+PTR	mediaproxy.netspeed.com.au
203.31.48.132	PTR	203-31-48-132.static.netspeed.com.au
203.31.48.144	PTR	203-31-48-144.static.netspeed.com.au
203.31.48.145	PTR	203-31-48-145.static.netspeed.com.au
203.31.48.149	PTR	ws149.netspeed.com.au
203.31.48.149	A	merlinprints.com.au
203.31.48.149	A	captrophysports.com.au
203.31.48.159	PTR	mail.netspeed.com.au
203.31.48.160	PTR	203-31-48-160.static.netspeed.com.au
203.31.48.163	A	mailstor.netspeed.com.au
203.31.48.164	PTR	mail.outwardbound.com.au
203.31.48.174	PTR	203-31-48-174.static.netspeed.com.au
203.31.48.174	A	www.the-edge.net.au
203.31.48.174	A	mail.itconnect.net.au
203.31.48.175	PTR	ws175.netspeed.com.au
203.31.48.175	A	hutchinson.com.au
203.31.48.175	A	fireclay.com.au
203.31.48.184	PTR	ws8.netspeed.com.au
203.31.48.184	A	hutchinson.com.au
203.31.48.184	A	ecowise-services.com.au
203.31.48.185	PTR	www.atrconstructions.com.au
203.31.48.185	A+PTR	ws9.netspeed.com.au
203.31.48.185	A	fireclay.com.au
203.31.48.187	PTR	ws11.netspeed.com.au
203.31.48.187	A	wordsworth.com.au
203.31.48.187	A	solander.com.au
203.31.48.203	A+PTR	mx2.netspeed.com.au
203.31.48.243	PTR	203-31-48-243.static.netspeed.com.au
203.31.48.253	PTR	mailstor-02.netspeed.com.au
203.31.48.253	A	ns4.netspeed.com.au