Robtex

Up: 137.189.24.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 137.189.28.0/23
Down right: 137.189.30.0/23

IP	Type	Hostname
137.189.28.20	A	pc28020.itsc.cuhk.edu.hk
137.189.28.77	A+PTR	pc28077.itsc.cuhk.edu.hk
137.189.28.81	A	pc28081.itsc.cuhk.edu.hk
137.189.28.160	A	e2ka-itsc2.itsc.cuhk.edu.hk
137.189.28.168	PTR	pc28168.itsc.cuhk.edu.hk
137.189.28.168	A	e2k3b-itsc2.itsc.cuhk.edu.hk
137.189.28.233	PTR	pc28233.itsc.cuhk.edu.hk
137.189.29.10	A	msmail.cuhk.edu.hk
137.189.29.111	A	pc29111.itsc.cuhk.edu.hk
137.189.29.143	A	pc29143.itsc.cuhk.edu.hk