Robtex

Up: 137.189.170.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 137.189.171.0/25
Down right: 137.189.171.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
137.189.171.88	A+PTR	udi.lib.cuhk.edu.hk
137.189.171.235	PTR	green.lib.cuhk.edu.hk
137.189.171.235	A	wes.sagepub.com.easyaccess1.lib.cuhk.edu.hk
137.189.171.235	A	easyaccess1.lib.cuhk.edu.hk
137.189.171.236	A+PTR	hkinchip.lib.cuhk.edu.hk
137.189.171.236	A	www.hkcan.net
137.189.171.236	A	hkcan.net