Robtex

Up: 137.189.88.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 137.189.92.0/23
Down right: 137.189.94.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
137.189.92.17	A+PTR	intranet.bme.cuhk.edu.hk
137.189.92.17	A+PTR	www.bme.cuhk.edu.hk
137.189.92.17	PTR	www3.bme.cuhk.edu.hk
137.189.94.1	A+PTR	eng-ser1.erg.cuhk.edu.hk
137.189.94.1	A	erg.cuhk.edu.hk
137.189.94.1	A	ns1.erg.cuhk.edu.hk
137.189.94.2	A+PTR	eng-ser2.erg.cuhk.edu.hk
137.189.94.56	A+PTR	appsvr2.cintec.cuhk.edu.hk
137.189.94.56	A	www.itsc.org.hk
137.189.94.57	PTR	www.erg.cuhk.edu.hk
137.189.94.57	A	eng57.erg.cuhk.edu.hk
137.189.94.63	A+PTR	mguard.erg.cuhk.edu.hk
137.189.94.72	A+PTR	pip.cintec.cuhk.edu.hk
137.189.94.72	A	mail.cintec.cuhk.edu.hk
137.189.94.72	A	ns2.itsc.org.hk
137.189.94.73	A+PTR	mail.cintec.cuhk.edu.hk
137.189.94.74	PTR	www2.erg.cuhk.edu.hk
137.189.94.93	A	onk.cintec.cuhk.edu.hk
137.189.94.94	A+PTR	www.cintec.cuhk.edu.hk
137.189.94.94	A	ns1.itsc.org.hk
137.189.94.193	A+PTR	vcon508.erg.cuhk.edu.hk
137.189.94.195	PTR	www2.erg.cuhk.edu.hk
137.189.94.204	A+PTR	eng204.erg.cuhk.edu.hk
137.189.95.174	A	sand.logitsco.cuhk.edu.hk
137.189.95.225	A	sky.aect.cuhk.edu.hk
137.189.95.226	A+PTR	earth.aect.cuhk.edu.hk
137.189.95.226	A	aect.cuhk.edu.hk
137.189.95.226	A	smoke.logitsco.cuhk.edu.hk