Robtex

Up: 203.80.96.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 203.80.96.0/23
Down right: 203.80.98.0/23
(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	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	PTR	rspam-in2.hkbn.net
203.80.96.34	A	mx20.ctimail.com
203.80.96.34	A	mx10.ctimail.com
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
203.80.97.5	A+PTR	203080097005.ctinets.com
203.80.97.9	A+PTR	203080097009.ctinets.com
203.80.97.12	A+PTR	203080097012.ctinets.com
203.80.97.15	A	203080097015.ctinets.com
203.80.97.16	A+PTR	203080097016.ctinets.com
203.80.97.18	A+PTR	203080097018.ctinets.com
203.80.97.19	A+PTR	203080097019.ctinets.com
203.80.97.23	A	203080097023.ctinets.com
203.80.97.24	A+PTR	203080097024.ctinets.com
203.80.97.26	A+PTR	203080097026.ctinets.com
203.80.97.27	A+PTR	203080097027.ctinets.com
203.80.97.31	A+PTR	203080097031.ctinets.com
203.80.97.33	A+PTR	203080097033.ctinets.com
203.80.97.35	A	203080097035.ctinets.com
203.80.97.40	A+PTR	203080097040.ctinets.com
203.80.97.41	A+PTR	203080097041.ctinets.com
203.80.97.46	A+PTR	203080097046.ctinets.com
203.80.97.47	A+PTR	203080097047.ctinets.com
203.80.97.49	A+PTR	203080097049.ctinets.com
203.80.97.58	A+PTR	203080097058.ctinets.com
203.80.97.61	A+PTR	203080097061.ctinets.com
203.80.97.64	A+PTR	203080097064.ctinets.com
203.80.97.66	A+PTR	203080097066.ctinets.com
203.80.97.74	A+PTR	203080097074.ctinets.com
203.80.97.79	A+PTR	203080097079.ctinets.com
203.80.97.82	A+PTR	203080097082.ctinets.com
203.80.97.90	A	203080097090.ctinets.com
203.80.97.94	A+PTR	203080097094.ctinets.com
203.80.97.95	A+PTR	203080097095.ctinets.com
203.80.97.97	A+PTR	203080097097.ctinets.com
203.80.97.99	A+PTR	203080097099.ctinets.com
203.80.97.106	A	203080097106.ctinets.com
203.80.97.109	A+PTR	203080097109.ctinets.com
203.80.97.110	A	203080097110.ctinets.com
203.80.97.117	A+PTR	dd1.ichannel.com.hk
203.80.97.125	A	203080097125.ctinets.com
203.80.97.133	A+PTR	203080097133.ctinets.com
203.80.97.135	A	203080097135.ctinets.com
203.80.97.136	A+PTR	203080097136.ctinets.com
203.80.97.166	A	203080097166.ctinets.com
203.80.97.173	A+PTR	203080097173.ctinets.com
203.80.97.177	A+PTR	203080097177.ctinets.com
203.80.97.180	A+PTR	203080097180.ctinets.com
203.80.97.186	A+PTR	203080097186.ctinets.com
203.80.97.189	A	203080097189.ctinets.com
203.80.97.195	A+PTR	203080097195.ctinets.com
203.80.97.211	A	203080097211.ctinets.com
203.80.97.228	A	203080097228.ctinets.com
203.80.97.236	A+PTR	203080097236.ctinets.com
203.80.98.1	A+PTR	203080098001.ctinets.com
203.80.98.13	A+PTR	mailer34-6.incnets.com
203.80.99.17	A	203080099017.ctinets.com
203.80.99.198	A	203080099198.ctinets.com