Robtex

Up: 222.31.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 222.31.0.0/22
Down right: 222.31.4.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
222.31.0.1	A	dns.tynu.edu.cn
222.31.1.3	A	jifei.tynu.edu.cn
222.31.2.241	A	wlzx.tynu.edu.cn
222.31.2.241	A	clxy.tynu.edu.cn
222.31.2.241	A	wlxy.tynu.edu.cn
222.31.3.15	A+PTR	www2.tynu.edu.cn
222.31.3.100	A	nhce.tynu.edu.cn
222.31.3.102	A	gzcx.tynu.edu.cn
222.31.3.105	A	mov.tynu.edu.cn
222.31.3.150	A	kxfzg.tynu.edu.cn
222.31.3.244	PTR	suncms.tynu.edu.cn
222.31.3.244	PTR	wsus.tynu.edu.cn
222.31.4.200	A	lib.tynu.edu.cn