Robtex

Up: 138.44.64.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 138.44.64.0/23
Down right: 138.44.66.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
138.44.64.90	A+PTR	mail.vlc.vic.edu.au
138.44.64.122	PTR	autodiscover.clarendon.vic.edu.au
138.44.64.122	A+PTR	bcc.clarendon.vic.edu.au
138.44.64.122	PTR	bccballau1.clarendon.vic.edu.au
138.44.65.9	A+PTR	mail02.nossalhs.vic.edu.au
138.44.65.82	A+PTR	mail.kardinia.vic.edu.au
138.44.65.82	A	kicswimschool.com
138.44.65.83	A	kardinia.vic.edu.au
138.44.65.83	A	www.kardinia.vic.edu.au
138.44.65.84	A	webmail.kardinia.vic.edu.au
138.44.65.89	PTR	mail2.kardinia.vic.edu.au
138.44.65.89	A	fishwell.com.au
138.44.65.188	A+PTR	mail.sjc.vic.edu.au
138.44.65.210	A+PTR	clarendon.vic.edu.au
138.44.65.210	A	www.clarendon.vic.edu.au
138.44.65.212	PTR	autodiscover.clarendon.vic.edu.au
138.44.65.212	A+PTR	bcc.clarendon.vic.edu.au
138.44.65.212	A+PTR	bccballau1.clarendon.vic.edu.au
138.44.65.213	PTR	autodiscover.clarendon.vic.edu.au
138.44.65.213	A+PTR	bcc.clarendon.vic.edu.au
138.44.65.213	A+PTR	bccballau1.clarendon.vic.edu.au
138.44.66.113	A	webmail.marcusoldham.vic.edu.au
138.44.66.158	A	crlt-zm-mmr1.aarnet.net.au
138.44.66.197	A	mx1.kingswoodcollege.vic.edu.au
138.44.66.226	A+PTR	vic-crlt-vcse1.aarnet.edu.au