Robtex

Up: 221.5.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 221.5.80.0/23
Down right: 221.5.82.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
221.5.80.52	A	mx2.pxkd.com.cn
221.5.80.52	A	mx2.pjbest.com
221.5.81.226	A	*.gaoyao.gd.cn
221.5.81.226	A	ns.gaoyao.gd.cn
221.5.81.226	A	gdwj.com.cn
221.5.81.228	A	gyszb.com
221.5.81.228	A	www.gyszb.com
221.5.81.228	A	gynews.net.cn