Robtex

Up: 123.243.200.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 123.243.200.128/26
Down right: 123.243.200.192/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
123.243.200.128	A+PTR	123-243-200-128.static.tpgi.com.au
123.243.200.129	A+PTR	123-243-200-129.static.tpgi.com.au
123.243.200.134	A+PTR	123-243-200-134.static.tpgi.com.au
123.243.200.135	A+PTR	123-243-200-135.static.tpgi.com.au
123.243.200.135	A	mail2.ptac.com.au
123.243.200.135	A	mail.ptac.com.au
123.243.200.138	A+PTR	123-243-200-138.static.tpgi.com.au
123.243.200.139	A	mx.whatsmydns.zone
123.243.200.142	PTR	123-243-200-142.static.tpgi.com.au
123.243.200.144	A+PTR	123-243-200-144.static.tpgi.com.au
123.243.200.150	A+PTR	123-243-200-150.static.tpgi.com.au
123.243.200.151	A+PTR	123-243-200-151.static.tpgi.com.au
123.243.200.152	PTR	123-243-200-152.tpgi.com.au
123.243.200.154	A+PTR	123-243-200-154.static.tpgi.com.au
123.243.200.158	A+PTR	123-243-200-158.static.tpgi.com.au
123.243.200.162	A+PTR	123-243-200-162.static.tpgi.com.au
123.243.200.163	A+PTR	123-243-200-163.static.tpgi.com.au
123.243.200.164	A+PTR	123-243-200-164.static.tpgi.com.au
123.243.200.170	A+PTR	123-243-200-170.static.tpgi.com.au
123.243.200.175	A+PTR	123-243-200-175.static.tpgi.com.au
123.243.200.179	A+PTR	123-243-200-179.static.tpgi.com.au
123.243.200.180	A	123-243-200-180.static.tpgi.com.au
123.243.200.185	A+PTR	123-243-200-185.static.tpgi.com.au
123.243.200.186	A+PTR	123-243-200-186.static.tpgi.com.au
123.243.200.187	A+PTR	123-243-200-187.static.tpgi.com.au
123.243.200.190	A+PTR	123-243-200-190.static.tpgi.com.au
123.243.200.195	A+PTR	123-243-200-195.static.tpgi.com.au
123.243.200.198	A+PTR	123-243-200-198.static.tpgi.com.au
123.243.200.203	A+PTR	123-243-200-203.static.tpgi.com.au
123.243.200.207	A+PTR	123-243-200-207.static.tpgi.com.au
123.243.200.221	A+PTR	123-243-200-221.static.tpgi.com.au
123.243.200.227	A+PTR	123-243-200-227.static.tpgi.com.au
123.243.200.230	A+PTR	123-243-200-230.static.tpgi.com.au
123.243.200.235	A+PTR	123-243-200-235.static.tpgi.com.au
123.243.200.236	A+PTR	123-243-200-236.static.tpgi.com.au
123.243.200.241	A+PTR	123-243-200-241.static.tpgi.com.au
123.243.200.242	A+PTR	123-243-200-242.static.tpgi.com.au
123.243.200.245	A+PTR	123-243-200-245.static.tpgi.com.au
123.243.200.245	A	ns1.icicimov.com
123.243.200.245	A	icicimov.com
123.243.200.248	A+PTR	123-243-200-248.static.tpgi.com.au
123.243.200.253	A+PTR	123-243-200-253.static.tpgi.com.au