Robtex

Up: 203.80.96.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.80.96.0/25
Down right: 203.80.96.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.80.96.6	PTR	80_96user6.ctimail.com
203.80.96.6	A	ichannel.com.hk
203.80.96.7	A+PTR	proxy.ctimail.com
203.80.96.7	PTR	meeting.ctinets.com
203.80.96.8	A+PTR	ns5o.ctihk.com
203.80.96.8	PTR	ns1.hkbn.net
203.80.96.8	A	ns1o.ctimail.com
203.80.96.9	PTR	ns2o.ctimail.com
203.80.96.10	PTR	ns1o.ctihk.com
203.80.96.11	PTR	ns11o.ctihk.com
203.80.96.14	PTR	mx1.hkbn.com.hk
203.80.96.14	A	popo.hkbn.net
203.80.96.17	A	action.ctihk.com
203.80.96.20	A+PTR	mailgate01.ctimail.com
203.80.96.20	A	mx20.ctimail.com
203.80.96.22	A	203080096022.ctinets.com
203.80.96.23	A	203080096023.ctinets.com
203.80.96.26	A	dev04.ctimail.com
203.80.96.28	A+PTR	203080096028.ctinets.com
203.80.96.28	A	www.incnets.net
203.80.96.28	A	es.hkbn.net
203.80.96.29	A	replica1.ctimail.com
203.80.96.30	A+PTR	fax2mail04.hkbn.net
203.80.96.32	A+PTR	vfsgw02.incnets.com
203.80.96.33	A+PTR	bmgw02.hkbn.net
203.80.96.34	A+PTR	rspam-in2.hkbn.net
203.80.96.34	A	mx20.ctimail.com
203.80.96.34	A	mx10.ctimail.com
203.80.96.35	A	mrtg.corp.hkbn.net
203.80.96.40	A	vm2em.hkbn.net
203.80.96.42	A	203080096042.ctinets.com
203.80.96.57	A+PTR	ns2-lin1.ctimail.com
203.80.96.57	A+PTR	cti1-faste1-0-0.ctinets.com
203.80.96.58	A	ctireport.ctinets.com
203.80.96.59	A+PTR	cnr.ctimail.com
203.80.96.97	A	batman.ctinets.com
203.80.96.124	A+PTR	cti2-faste0-0.ctinets.com
203.80.96.151	PTR	smtp3.ctimail3.com
203.80.96.155	A	tel91.hkbn.net
203.80.96.168	A+PTR	www1.my.ctimail.com
203.80.96.168	A	my.ctimail.com
203.80.96.168	A	smtp.my.ctimail.com
203.80.96.171	A+PTR	outguard04.hkbn.net
203.80.96.184	PTR	203080096184.ctinets.com
203.80.96.184	A	www.musicone.hkbn.net