Robtex

Up: 202.117.192.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 202.117.208.0/21
Down right: 202.117.216.0/21

IP	Type	Hostname
202.117.208.1	PTR	pc.xjtu.edu.cn
202.117.208.19	PTR	pc.xjtu.edu.cn
202.117.208.48	PTR	pc.xjtu.edu.cn
202.117.208.49	PTR	pc.xjtu.edu.cn
202.117.208.51	PTR	pc.xjtu.edu.cn
202.117.208.64	PTR	pc.xjtu.edu.cn
202.117.208.80	PTR	pc.xjtu.edu.cn
202.117.208.82	PTR	pc.xjtu.edu.cn
202.117.208.97	PTR	pc.xjtu.edu.cn
202.117.208.128	PTR	pc.xjtu.edu.cn
202.117.208.129	PTR	pc.xjtu.edu.cn
202.117.208.131	PTR	pc.xjtu.edu.cn
202.117.208.144	PTR	pc.xjtu.edu.cn
202.117.208.147	PTR	pc.xjtu.edu.cn
202.117.208.160	PTR	pc.xjtu.edu.cn
202.117.208.162	PTR	pc.xjtu.edu.cn
202.117.208.163	PTR	pc.xjtu.edu.cn
202.117.208.210	PTR	pc.xjtu.edu.cn
202.117.208.224	PTR	pc.xjtu.edu.cn
202.117.208.225	PTR	pc.xjtu.edu.cn
202.117.208.227	PTR	pc.xjtu.edu.cn
202.117.208.242	PTR	pc.xjtu.edu.cn
202.117.214.18	A	mail.thermodata.cn