Robtex

Up: 203.185.30.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.185.30.0/25
Down right: 203.185.30.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.185.30.39	PTR	203185030039.static.ctinets.com
203.185.30.39	A	mail.csci.com.hk
203.185.30.43	A+PTR	203185030043.static.ctinets.com
203.185.30.43	A	mail.cohl.com
203.185.30.43	A	webmail.cohl.com
203.185.30.65	A	203185030065.static.ctinets.com
203.185.30.69	PTR	203185030069.static.ctinets.com
203.185.30.69	A	www.dlshk.com
203.185.30.69	A	*.acqshk.com
203.185.30.121	A+PTR	203185030121.static.ctinets.com
203.185.30.121	A	ifax.tungshing.com.hk
203.185.30.146	A	203185030146.static.ctinets.com
203.185.30.155	PTR	203185030155.static.ctinets.com
203.185.30.155	A	mail.lana.com.hk
203.185.30.155	A	server1.lana.com.hk
203.185.30.168	A	203185030168.static.ctinets.com
203.185.30.202	PTR	203185030202.static.ctinets.com
203.185.30.202	A	mail.tsingyan.net
203.185.30.205	PTR	203185030205.static.ctinets.com
203.185.30.205	A	tsingyan.net
203.185.30.212	PTR	mail.craigwood.com.hk
203.185.30.212	A	www.marcino.com
203.185.30.212	A	marcino.com
203.185.30.215	A	203185030215.static.ctinets.com
203.185.30.239	A	203185030239.static.ctinets.com
203.185.30.240	A	203185030240.static.ctinets.com
203.185.30.242	A+PTR	203185030242.static.ctinets.com
203.185.30.242	A	mail.alkf.com
203.185.30.242	A	mail.alkf-arch.com
203.185.30.246	PTR	203185030246.static.ctinets.com
203.185.30.246	A	dns1.yes.com.hk
203.185.30.248	A+PTR	203185030248.static.ctinets.com
203.185.30.248	A	forum.yesmagazine.com.hk
203.185.30.248	A	www.yesmagazine.com.hk
203.185.30.249	A	203185030249.static.ctinets.com