Robtex

Up: 203.80.232.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.80.232.0/23
Down right: 203.80.234.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.80.232.45	A	203080232045.static.ctinets.com
203.80.232.68	PTR	itmaster.itretex.com
203.80.232.238	A	kjprinting.com
203.80.233.22	A	clevertime.com.hk
203.80.233.22	A	mail.clevertime.com.hk
203.80.233.106	PTR	203080233106.static.ctinets.com
203.80.233.140	A	203080233140.static.ctinets.com
203.80.233.238	PTR	203080233238.static.ctinets.com
203.80.233.238	A	mail.b4g.org
203.80.233.238	A	b4g.org
203.80.235.42	PTR	203080235042.static.ctinets.com
203.80.235.42	A	mail.gectl.com
203.80.235.155	PTR	203080235155.static.ctinets.com