Robtex

Up: 123.203.0.0/21
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Down left: 123.203.4.0/23
Down right: 123.203.6.0/23

IP	Type	Hostname
123.203.4.13	A+PTR	123203004013.ctinets.com
123.203.4.24	A+PTR	123203004024.ctinets.com
123.203.4.30	A+PTR	123203004030.ctinets.com
123.203.4.32	A+PTR	123203004032.ctinets.com
123.203.4.42	A	123203004042.ctinets.com
123.203.4.52	A+PTR	123203004052.ctinets.com
123.203.4.57	A	123203004057.ctinets.com
123.203.4.67	A+PTR	123203004067.ctinets.com
123.203.4.74	A	123203004074.ctinets.com
123.203.4.90	A+PTR	123203004090.ctinets.com
123.203.4.144	A	123203004144.ctinets.com
123.203.4.162	A+PTR	123203004162.ctinets.com
123.203.4.175	A+PTR	123203004175.ctinets.com
123.203.4.196	A	123203004196.ctinets.com
123.203.4.235	A+PTR	123203004235.ctinets.com
123.203.4.244	A+PTR	123203004244.ctinets.com
123.203.4.250	A	123203004250.ctinets.com
123.203.4.252	A+PTR	123203004252.ctinets.com
123.203.5.43	A	123203005043.ctinets.com
123.203.5.52	A+PTR	123203005052.ctinets.com
123.203.5.53	A	123203005053.ctinets.com
123.203.5.56	A	123203005056.ctinets.com
123.203.5.71	A	123203005071.ctinets.com
123.203.5.91	A	123203005091.ctinets.com
123.203.5.116	A	123203005116.ctinets.com
123.203.5.117	A	123203005117.ctinets.com
123.203.5.120	A	123203005120.ctinets.com
123.203.5.126	A	123203005126.ctinets.com
123.203.5.158	A	123203005158.ctinets.com
123.203.5.161	A	123203005161.ctinets.com
123.203.5.175	A	123203005175.ctinets.com
123.203.5.188	A	123203005188.ctinets.com
123.203.5.221	A	123203005221.ctinets.com
123.203.5.239	A	123203005239.ctinets.com
123.203.6.2	A	123203006002.ctinets.com
123.203.6.36	A	123203006036.ctinets.com
123.203.6.82	A	123203006082.ctinets.com
123.203.6.99	A	123203006099.ctinets.com
123.203.6.120	A	123203006120.ctinets.com
123.203.6.141	A	123203006141.ctinets.com
123.203.6.242	A	123203006242.ctinets.com
123.203.6.254	A	123203006254.ctinets.com