Robtex

Up: 116.50.22.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 116.50.23.0/25
Down right: 116.50.23.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
116.50.23.26	A	mxfilter.pwh.com.au
116.50.23.26	A	filter1.dc1.per.fasthit.net.au
116.50.23.26	A	mx1.filter.dc1.per.fasthit.net.au
116.50.23.27	A	mx1.filter.dc1.per.fasthit.net.au
116.50.23.27	A	mx.filter.dc1.per.fasthit.net.au
116.50.23.27	A	filter2.dc1.per.fasthit.net.au
116.50.23.28	PTR	filter1-out.dc1.per.fasthit.net.au
116.50.23.28	A	mx.filter.dc1.per.fasthit.net.au
116.50.23.28	A	mxfilter2.pwh.com.au
116.50.23.29	A	mx.filter.dc1.per.fasthit.net.au
116.50.23.29	A	mx2.filter.dc1.per.fasthit.net.au
116.50.23.29	A	filter2-out.dc1.per.fasthit.net.au
116.50.23.34	A+PTR	vpn1.dc1.per.fasthit.net.au
116.50.23.218	A	relay.serverconnection.net
116.50.23.221	A	snow2water.com.au
116.50.23.222	PTR	www.watercorporation.com.au