Robtex

Up: 123.203.16.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 123.203.18.0/24
Down right: 123.203.19.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
123.203.18.12	PTR	123203018012.ctinets.com
123.203.18.12	A	qqwong.com
123.203.18.12	A	prettyhealthystore.com
123.203.18.36	PTR	123203018036.ctinets.com
123.203.18.36	A	cybernetpro.com
123.203.18.36	A	hkclra.hk.st
123.203.18.89	A	123203018089.ctinets.com
123.203.18.196	A	123203018196.ctinets.com
123.203.19.1	A	123203019001.ctinets.com
123.203.19.17	A	123203019017.ctinets.com
123.203.19.41	A+PTR	123203019041.ctinets.com
123.203.19.89	A	123203019089.ctinets.com
123.203.19.100	A	123203019100.ctinets.com
123.203.19.124	A+PTR	123203019124.ctinets.com
123.203.19.168	A	123203019168.ctinets.com
123.203.19.169	A+PTR	123203019169.ctinets.com
123.203.19.169	A	dsechem.com
123.203.19.209	A	123203019209.ctinets.com
123.203.19.232	A	123203019232.ctinets.com