Robtex

Up: 211.66.64.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 211.66.64.0/25
Down right: 211.66.64.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
211.66.64.8	A+PTR	dns.gzhmt.edu.cn
211.66.64.8	A	webmail.gzhmt.edu.cn
211.66.64.8	A	mail.gzhmt.edu.cn
211.66.64.9	A+PTR	sea.gzhmt.edu.cn
211.66.64.34	PTR	unknow.gzhmt.edu.cn
211.66.64.37	PTR	unknow.gzhmt.edu.cn
211.66.64.78	PTR	unknow.gzhmt.edu.cn
211.66.64.83	PTR	unknow.gzhmt.edu.cn
211.66.64.93	PTR	unknow.gzhmt.edu.cn
211.66.64.104	PTR	unknow.gzhmt.edu.cn
211.66.64.110	A	gzhmt.edu.cn
211.66.64.115	PTR	unknow.gzhmt.edu.cn
211.66.64.117	PTR	unknow.gzhmt.edu.cn
211.66.64.117	A	441jjj.net
211.66.64.123	PTR	unknow.gzhmt.edu.cn
211.66.64.127	PTR	unknow.gzhmt.edu.cn
211.66.64.131	PTR	unknow.gzhmt.edu.cn
211.66.64.158	PTR	unknow.gzhmt.edu.cn
211.66.64.174	PTR	unknow.gzhmt.edu.cn
211.66.64.188	PTR	unknow.gzhmt.edu.cn
211.66.64.188	A	mm164.info
211.66.64.188	A	41vv.com
211.66.64.206	PTR	unknow.gzhmt.edu.cn
211.66.64.209	PTR	unknow.gzhmt.edu.cn
211.66.64.215	PTR	unknow.gzhmt.edu.cn
211.66.64.223	PTR	unknow.gzhmt.edu.cn
211.66.64.236	PTR	unknow.gzhmt.edu.cn