Robtex

Up: 211.86.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 211.86.128.0/21
Down right: 211.86.136.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
211.86.128.1	A+PTR	dns.ahszu.edu.cn
211.86.128.1	A	dns.ahsztc.edu.cn
211.86.128.2	PTR	jjc.ahszu.edu.cn
211.86.128.2	PTR	ddh.ahszu.edu.cn
211.86.128.2	PTR	hsxy.ahszu.edu.cn
211.86.128.7	PTR	mail.ahszu.edu.cn
211.86.128.7	PTR	mail.ahsztc.edu.cn