Robtex

Up: 137.189.128.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 137.189.128.0/20
Down right: 137.189.144.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
137.189.128.3	A+PTR	med.cuhk.edu.hk
137.189.128.3	A+PTR	mailserv.med.cuhk.edu.hk
137.189.128.3	A+PTR	ruby.med.cuhk.edu.hk
137.189.128.190	A+PTR	iceberg.med.cuhk.edu.hk
137.189.131.237	A+PTR	serverd-law.law.cuhk.edu.hk
137.189.133.132	PTR	entmailsvr.ent.cuhk.edu.hk
137.189.133.132	A	heartalk.org
137.189.133.140	A	meow-server.ent.cuhk.edu.hk
137.189.134.7	A+PTR	carrier.sph.cuhk.edu.hk
137.189.135.130	A	cctmail2.cct.cuhk.edu.hk
137.189.135.146	A	cctmail.cct.cuhk.edu.hk
137.189.136.161	A+PTR	mdp161.lib.cuhk.edu.hk
137.189.136.169	A	mdp169.lib.cuhk.edu.hk
137.189.136.201	A	mds201.lib.cuhk.edu.hk
137.189.136.214	A	mdcir001.lib.cuhk.edu.hk
137.189.136.224	A+PTR	mds224.lib.cuhk.edu.hk
137.189.138.37	A	hkcpath.org
137.189.138.37	A	www.hkcpath.org
137.189.139.77	A	www.obg.cuhk.edu.hk
137.189.139.85	A	www.fetalmedicine.hk
137.189.139.88	A	gynaeoncology.hk
137.189.139.172	A	hkivf.com
137.189.139.172	A	www.hkivf.com
137.189.139.182	A	apcmfm.hk
137.189.140.3	A	www.esurg.net
137.189.140.9	A+PTR	surex.surgery.cuhk.edu.hk
137.189.140.9	A	surgery.cuhk.edu.hk
137.189.140.10	A	mail.surgery.cuhk.edu.hk
137.189.140.46	A	emailgw.surgery.cuhk.edu.hk
137.189.140.46	A	esurg.net
137.189.140.46	A	videourology2012.com
137.189.141.1	A+PTR	aic-server1.aic.cuhk.edu.hk
137.189.141.1	A	aic.cuhk.edu.hk
137.189.141.2	A	web8.aic.cuhk.edu.hk
137.189.141.3	A+PTR	mail.hkca.edu.hk
137.189.141.191	A	www.droid.cuhk.edu.hk
137.189.141.191	A	droidweb.droid.cuhk.edu.hk
137.189.142.5	A	www.digestion.hk
137.189.142.92	A	medproteomics.org
137.189.142.92	A	hkproteomics.org
137.189.144.6	A	emailgw.clo.cuhk.edu.hk
137.189.144.18	A+PTR	clo-mail2.clo.cuhk.edu.hk
137.189.144.18	A	mail2.clo.cuhk.edu.hk
137.189.145.1	A+PTR	sgreen.ort.cuhk.edu.hk
137.189.145.1	A	ort.cuhk.edu.hk
137.189.145.1	A	ortntserver1.ort.cuhk.edu.hk
137.189.145.2	PTR	www.2016icors.org
137.189.145.2	PTR	www.coso.org.hk
137.189.145.2	PTR	call-list.ort.cuhk.edu.hk
137.189.145.3	PTR	ortdns.ort.cuhk.edu.hk
137.189.145.4	PTR	syellow.ort.cuhk.edu.hk
137.189.145.6	A	siren.ort.cuhk.edu.hk
137.189.145.8	A	ort.cuhk.edu.hk
137.189.145.52	A	siren.ort.cuhk.edu.hk
137.189.145.52	A	mail3.ort.cuhk.edu.hk
137.189.145.65	PTR	qinling-pc.ort.cuhk.edu.hk
137.189.145.71	PTR	ais.ort.cuhk.edu.hk
137.189.145.217	A	www.hkcos.org.hk
137.189.145.217	A	mail.hkcos.org.hk
137.189.149.3	A+PTR	notary.med.cuhk.edu.hk
137.189.150.12	PTR	mail.cct.cuhk.edu.hk
137.189.150.31	A	standone.standtallchina.org
137.189.150.36	A+PTR	mail.standtallchina.org
137.189.150.36	A	standslave.standtallchina.org
137.189.150.55	PTR	droidweb.droid.cuhk.edu.hk
137.189.151.5	A+PTR	weber.med.cuhk.edu.hk
137.189.151.5	A	www.med.cuhk.edu.hk
137.189.151.6	PTR	pigeon.med.cuhk.edu.hk
137.189.151.6	A	www.csu.med.cuhk.edu.hk
137.189.151.6	A	hkfrdd.org
137.189.151.17	PTR	bear.mit.cuhk.edu.hk
137.189.151.82	A+PTR	lyra.med.cuhk.edu.hk
137.189.151.82	A	www.medicine-on-line.com
137.189.151.82	A	www.hedc.med.cuhk.edu.hk
137.189.152.3	A+PTR	lin092.arch.cuhk.edu.hk
137.189.152.5	A	lin09.arch.cuhk.edu.hk
137.189.152.11	A	arch.cuhk.edu.hk
137.189.152.24	A	www.arch.cuhk.edu.hk
137.189.152.32	A	08svrcl2-fp2.arch.cuhk.edu.hk
137.189.152.97	A+PTR	daiqun.arch.cuhk.edu.hk
137.189.156.178	A	chinesemoodle.com