Robtex

Up: 218.195.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 218.195.16.0/22
Down right: 218.195.20.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
218.195.18.66	A	37ub.com
218.195.23.168	A+PTR	mail.xafa.edu.cn
218.195.23.205	A+PTR	dns.xafa.edu.cn
218.195.23.205	A	dnsb.xafa.edu.cn
218.195.23.205	A	dnsc.xafa.edu.cn
218.195.23.223	PTR	fz.xafa.edu.cn
218.195.23.223	PTR	peixun.xafa.edu.cn
218.195.23.223	PTR	zs.xafa.edu.cn
218.195.23.233	PTR	dangbanold.afa.edu.cn
218.195.23.233	PTR	banhua.xafa.edu.cn
218.195.23.233	PTR	dangbannew.xafa.edu.cn