Robtex

Up: 123.243.174.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 123.243.175.0/25
Down right: 123.243.175.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
123.243.175.5	A+PTR	123-243-175-5.static.tpgi.com.au
123.243.175.8	A+PTR	123-243-175-8.static.tpgi.com.au
123.243.175.11	A+PTR	123-243-175-11.static.tpgi.com.au
123.243.175.15	A+PTR	123-243-175-15.static.tpgi.com.au
123.243.175.21	A+PTR	123-243-175-21.static.tpgi.com.au
123.243.175.33	A+PTR	123-243-175-33.static.tpgi.com.au
123.243.175.39	A+PTR	123-243-175-39.static.tpgi.com.au
123.243.175.40	A+PTR	123-243-175-40.static.tpgi.com.au
123.243.175.46	A+PTR	123-243-175-46.static.tpgi.com.au
123.243.175.49	PTR	home.caspianjvc.com
123.243.175.51	A	123-243-175-51.static.tpgi.com.au
123.243.175.54	A+PTR	123-243-175-54.static.tpgi.com.au
123.243.175.57	A+PTR	123-243-175-57.static.tpgi.com.au
123.243.175.61	A+PTR	123-243-175-61.static.tpgi.com.au
123.243.175.62	A+PTR	123-243-175-62.static.tpgi.com.au
123.243.175.66	A	123-243-175-66.static.tpgi.com.au
123.243.175.70	A+PTR	123-243-175-70.static.tpgi.com.au
123.243.175.73	A+PTR	123-243-175-73.static.tpgi.com.au
123.243.175.74	A+PTR	123-243-175-74.static.tpgi.com.au
123.243.175.79	A+PTR	123-243-175-79.static.tpgi.com.au
123.243.175.84	A+PTR	123-243-175-84.static.tpgi.com.au
123.243.175.91	A+PTR	123-243-175-91.static.tpgi.com.au
123.243.175.93	A+PTR	123-243-175-93.static.tpgi.com.au
123.243.175.98	A+PTR	123-243-175-98.static.tpgi.com.au
123.243.175.101	A+PTR	123-243-175-101.static.tpgi.com.au
123.243.175.103	A+PTR	123-243-175-103.static.tpgi.com.au
123.243.175.107	A+PTR	123-243-175-107.static.tpgi.com.au
123.243.175.115	A+PTR	123-243-175-115.static.tpgi.com.au
123.243.175.117	A+PTR	123-243-175-117.static.tpgi.com.au
123.243.175.119	A+PTR	123-243-175-119.static.tpgi.com.au
123.243.175.126	A+PTR	123-243-175-126.static.tpgi.com.au
123.243.175.127	A+PTR	123-243-175-127.static.tpgi.com.au
123.243.175.128	A+PTR	123-243-175-128.static.tpgi.com.au
123.243.175.131	A+PTR	123-243-175-131.static.tpgi.com.au
123.243.175.133	A+PTR	123-243-175-133.static.tpgi.com.au
123.243.175.135	A+PTR	123-243-175-135.static.tpgi.com.au
123.243.175.137	A+PTR	123-243-175-137.static.tpgi.com.au
123.243.175.141	A+PTR	123-243-175-141.static.tpgi.com.au
123.243.175.143	A+PTR	123-243-175-143.static.tpgi.com.au
123.243.175.145	A+PTR	123-243-175-145.static.tpgi.com.au
123.243.175.146	A+PTR	123-243-175-146.static.tpgi.com.au
123.243.175.150	PTR	mx2.actrix.net
123.243.175.150	A	mail.propellor-network.net
123.243.175.150	A	mx1.actrix.net
123.243.175.157	PTR	123-243-175-157.static.tpgi.com.au
123.243.175.177	A+PTR	123-243-175-177.static.tpgi.com.au
123.243.175.178	A+PTR	123-243-175-178.static.tpgi.com.au
123.243.175.181	A+PTR	123-243-175-181.static.tpgi.com.au
123.243.175.185	A+PTR	123-243-175-185.static.tpgi.com.au
123.243.175.186	A+PTR	123-243-175-186.static.tpgi.com.au
123.243.175.192	A+PTR	123-243-175-192.static.tpgi.com.au
123.243.175.194	A+PTR	123-243-175-194.static.tpgi.com.au
123.243.175.198	A+PTR	123-243-175-198.static.tpgi.com.au
123.243.175.201	A+PTR	123-243-175-201.static.tpgi.com.au
123.243.175.202	A+PTR	123-243-175-202.static.tpgi.com.au
123.243.175.203	A+PTR	123-243-175-203.static.tpgi.com.au
123.243.175.205	A+PTR	123-243-175-205.static.tpgi.com.au
123.243.175.207	A+PTR	123-243-175-207.static.tpgi.com.au
123.243.175.214	A+PTR	123-243-175-214.static.tpgi.com.au
123.243.175.215	A+PTR	123-243-175-215.static.tpgi.com.au
123.243.175.219	A+PTR	123-243-175-219.static.tpgi.com.au
123.243.175.221	A+PTR	123-243-175-221.static.tpgi.com.au
123.243.175.223	A+PTR	123-243-175-223.static.tpgi.com.au
123.243.175.231	A+PTR	123-243-175-231.static.tpgi.com.au
123.243.175.234	A+PTR	123-243-175-234.static.tpgi.com.au
123.243.175.235	A+PTR	123-243-175-235.static.tpgi.com.au
123.243.175.239	A+PTR	123-243-175-239.static.tpgi.com.au
123.243.175.241	A+PTR	123-243-175-241.static.tpgi.com.au
123.243.175.245	A+PTR	123-243-175-245.static.tpgi.com.au
123.243.175.251	A+PTR	123-243-175-251.static.tpgi.com.au
123.243.175.254	A+PTR	123-243-175-254.static.tpgi.com.au
123.243.175.255	A+PTR	123-243-175-255.static.tpgi.com.au