Robtex

Up: 163.44.192.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 163.44.208.0/21
Down right: 163.44.216.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
163.44.217.126	PTR	www.cocoal.jp
163.44.220.160	A+PTR	digital-faq.olympus.co.jp
163.44.220.162	PTR	sakura-admin.cb-faq.com
163.44.222.115	A+PTR	ios-dl.atok.com
163.44.222.190	A+PTR	beatjam.justsystem.co.jp
163.44.222.190	A	beatjam.jp
163.44.222.224	A	www.justmystage.com
163.44.222.229	PTR	staging-j-survey.fast-ask.com
163.44.222.243	A+PTR	betatest.atok.com
163.44.223.3	A+PTR	dl.justsystems.com
163.44.223.5	A	jsboard.com
163.44.223.8	A	atok.com
163.44.223.8	A	www.justsystem.co.jp
163.44.223.8	A	www.atok.com
163.44.223.20	A	faq.willcom-inc.com
163.44.223.23	A	www.idiskasp.com
163.44.223.24	A	www2.internetdisk.biz
163.44.223.27	A	www.shintentsushin.com
163.44.223.114	A+PTR	dns1.justsystems.com
163.44.223.114	A	a.mx.idc.justsystems.com
163.44.223.114	A	dns11.justsystems.com
163.44.223.115	PTR	dns2.justsystems.com
163.44.223.156	A	a.mx.fast-ask.com
163.44.223.183	A	jmsmlmagagw28.justmyshop.com
163.44.223.192	PTR	support.justsystems.com
163.44.223.193	A	support.justsystem.co.jp
163.44.223.194	A+PTR	faq.justsystem.co.jp
163.44.223.195	A+PTR	searchqa.justsystem.co.jp
163.44.223.209	A	subscribe.justsystems.com
163.44.223.218	A	atok.com
163.44.223.218	A	www.atok.com
163.44.223.224	A+PTR	account.justsystems.com
163.44.223.225	A+PTR	kantan-access.com
163.44.223.226	PTR	tracker.kantan-access.com
163.44.223.227	A+PTR	www.justsystems.com
163.44.223.227	A	justsystems.com
163.44.223.240	A+PTR	edi.justsystem.co.jp
163.44.223.241	A+PTR	activation.justsystems.com