Robtex

Up: 211.97.96.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 211.97.104.0/22
Down right: 211.97.108.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
211.97.104.129	PTR	cache-fz.fj133165.com
211.97.104.195	PTR	pix.fjfz.cnuninet.net
211.97.104.238	A	smtp1.fj133165.com
211.97.104.245	PTR	smtp.fj133165.com
211.97.104.245	A	fj.133165.com
211.97.104.246	PTR	mail.fj133165.com
211.97.104.246	PTR	pop.fj133165.com
211.97.104.246	PTR	pop3.fj133165.com
211.97.105.238	A	fj.chinaunicom.com