Robtex

Up: 202.13.128.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 202.13.136.0/22
Down right: 202.13.140.0/22

IP	Type	Hostname
202.13.138.50	A+PTR	dns.meijigakuin.ac.jp
202.13.138.64	A+PTR	msmail.meijigakuin.ac.jp
202.13.138.67	A+PTR	gyoseki.meijigakuin.ac.jp
202.13.138.88	A+PTR	mswwedu.meijigakuin.ac.jp
202.13.138.163	A+PTR	mgmail.jp
202.13.138.192	A+PTR	mgda.meijigakuin.ac.jp
202.13.140.60	A	atrcall.meijigakuin.ac.jp