Robtex

Up: 137.189.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 137.189.144.0/21
Down right: 137.189.152.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
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
137.189.145.22	A	smhs.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
137.189.151.17	A	bear.csu.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
137.189.152.24	A	newweb.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