Robtex

Up: 121.200.230.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 121.200.231.0/25
Down right: 121.200.231.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
121.200.231.1	PTR	c-21809-4301-vaies-309-382.pr1.mlcn.nxg.net.au
121.200.231.2	A	vpn.crkennedy.com.au
121.200.231.13	A+PTR	mail.crkennedy.com.au
121.200.231.13	A	imap.crkennedy.com.au
121.200.231.17	PTR	c-21809-3087-vaies-304-350.pr1.melb.nxg.net.au
121.200.231.18	PTR	www.crkennedy.com.au
121.200.231.18	A	lgcctv.co.nz
121.200.231.18	A	sigmaphoto.co.nz
121.200.231.19	A	mail1.crkennedy.com.au
121.200.231.20	A+PTR	mail.smartnetaus.com
121.200.231.20	A	smartausnet.com.au
121.200.231.20	A	smartausnet.com
121.200.231.22	A	crkennedy.net
121.200.231.22	A	proamphoto.com.au
121.200.231.22	A	elmo.com.au
121.200.231.49	A	hwlebsworths.com
121.200.231.49	A	abbotttout.com.au
121.200.231.49	A	hwlebsworths.com.au
121.200.231.90	PTR	mail1.vicurban.vic.gov.au
121.200.231.90	A	mail.places.vic.gov.au
121.200.231.90	A	mail.vicurban.com
121.200.231.106	A+PTR	mail.readings.com.au
121.200.231.129	A	c-22431-2366-vaies-302-718.pr2.melb.nxg.net.au
121.200.231.130	A+PTR	vpn.healthecare.net.au
121.200.231.131	PTR	mail.healthecare.com.au
121.200.231.131	A	mail2.healthecare.com.au
121.200.231.131	A	mail.healthecare.net.au
121.200.231.154	A	right-from-home.com.au
121.200.231.198	A+PTR	mx1.elbitsystems-au.com
121.200.231.210	PTR	pm2.nms.melb.nn.com.au
121.200.231.214	A+PTR	vm3.dmz3.nxg.net.au
121.200.231.218	A	vpn-test.nxg.net.au
121.200.231.232	A	mail.colesfinancialservices.com.au
121.200.231.236	A+PTR	mail1.colesfinancialservices.com.au
121.200.231.237	A+PTR	mail2.colesfinancialservices.com.au