Robtex

Up: 210.215.136.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 210.215.136.0/25
Down right: 210.215.136.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.215.136.6	A+PTR	mail.spectrumtech.com.au
210.215.136.6	A	mail.antonir.net
210.215.136.13	A	ns1.antonir.net
210.215.136.13	A	antonir.net
210.215.136.13	A	north.spectrumtech.com.au
210.215.136.14	A	north2.spectrumtech.com.au
210.215.136.14	A	ns2.antonir.net
210.215.136.14	A	ns2.triadgroup.com.au