Robtex

Up: 123.51.122.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 123.51.122.0/25
Down right: 123.51.122.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
123.51.122.34	PTR	123-51-122-34.static.dsl.net.au
123.51.122.34	A	net01.blowup.com.au
123.51.122.34	A	williamselectronics.net
123.51.122.35	PTR	123-51-122-35.static.dsl.net.au
123.51.122.35	A	blowup.com.au
123.51.122.35	A	net02.blowup.com.au
123.51.122.42	PTR	123-51-122-42.static.dsl.net.au
123.51.122.42	A	mail.palmers.com.au
123.51.122.69	PTR	123-51-122-69.static.dsl.net.au
123.51.122.106	A	mail.maverick.com.au
123.51.122.113	A	go-llama.com
123.51.122.164	PTR	123-51-122-164.static.dsl.net.au
123.51.122.174	A	shepherdsbaypersonnel.com