Robtex

Up: 203.87.50.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.87.51.0/25
Down right: 203.87.51.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.87.51.1	PTR	203-87-51-1.static.tpgi.com.au
203.87.51.5	PTR	5.51.87.203.static.tas.chariot.net.au
203.87.51.26	A+PTR	email.curvesecurities.com.au
203.87.51.43	A+PTR	smtp1.gsaib.com.au
203.87.51.43	A	smtp1.insuresme.com.au
203.87.51.44	PTR	44.51.87.203.static.tas.chariot.net.au
203.87.51.44	A	mail.brooklynunderwriting.com.au
203.87.51.65	A	helpdesk.armadasolutions.com.au
203.87.51.67	A	armadasolutions.com.au
203.87.51.67	A	www.armadasolutions.com.au
203.87.51.68	PTR	68.51.87.203.static.tas.chariot.net.au
203.87.51.68	A	mail.armadasolutions.com.au
203.87.51.68	A	webmail.armadasolutions.com.au
203.87.51.70	PTR	203-87-51-70.static.tpgi.com.au
203.87.51.70	A	mail.eisuper.com.au
203.87.51.72	PTR	203-87-51-72.static.tpgi.com.au
203.87.51.77	PTR	77.51.87.203.static.tas.chariot.net.au
203.87.51.79	PTR	79.51.87.203.static.tas.chariot.net.au
203.87.51.90	PTR	90.51.87.203.static.tas.chariot.net.au
203.87.51.98	PTR	98.51.87.203.static.tas.chariot.net.au
203.87.51.126	A+PTR	mail.btavantage.com.au
203.87.51.126	A	mail1.btavantage.com.au
203.87.51.150	PTR	203-87-51-150.static.tpgi.com.au
203.87.51.150	A	mx-59-167-167-97.theservicemanager.com
203.87.51.150	A	proware.com.au
203.87.51.158	PTR	203-87-51-158.static.tpgi.com.au
203.87.51.158	A	mail.bka.com.au
203.87.51.158	A	imap.bka.com.au
203.87.51.166	PTR	166.51.87.203.static.tas.chariot.net.au
203.87.51.170	A	mail.australianshareregistry.com
203.87.51.170	A	pulsemarkets.com.au
203.87.51.178	PTR	203-87-51-178.static.tpgi.com.au
203.87.51.178	A	mail.mobilecomputers.com.au
203.87.51.185	A+PTR	mail.lepagelawyers.com.au
203.87.51.185	A	remote.lepagesolicitors.com
203.87.51.185	A	remote.leviesonline.com
203.87.51.198	PTR	198.51.87.203.static.tas.chariot.net.au
203.87.51.198	A	mail.fbeu.net
203.87.51.198	A	gateway.fbeu.net
203.87.51.206	PTR	206.51.87.203.static.tas.chariot.net.au
203.87.51.206	A	mail.nccnsw.org.au
203.87.51.206	A	acacia.nccnsw.org.au
203.87.51.210	PTR	203-87-51-210.static.tpgi.com.au
203.87.51.210	A	york.npansw.org.au
203.87.51.210	A	mail.npansw.org.au
203.87.51.254	PTR	203-87-51-254.static.tpgi.com.au
203.87.51.254	A	havenlic.com
203.87.51.254	A	mail.havenlic.com