Robtex

Up: 210.31.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 210.31.32.0/21
Down right: 210.31.40.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.31.32.4	A+PTR	sdns.bipt.edu.cn
210.31.32.5	A+PTR	ftp.bipt.edu.cn
210.31.32.7	A+PTR	eeajt.bipt.edu.cn
210.31.32.7	A+PTR	www.bipt.edu.cn
210.31.32.7	PTR	bjaset.bipt.edu.cn
210.31.32.8	PTR	pdns.bipt.edu.cn
210.31.47.10	A	weblib.bipt.edu.cn