Robtex

Up: 115.64.51.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 115.64.51.0/26
Down right: 115.64.51.64/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
115.64.51.11	PTR	115-64-51-11.static.tpgi.com.au
115.64.51.11	A	www.mapcom.com.au
115.64.51.11	A	mail.mumscakes.com.au
115.64.51.51	A	115-64-51-51.static.tpgi.com.au
115.64.51.76	A+PTR	115-64-51-76.static.tpgi.com.au