Robtex

Up: 115.31.192.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 115.31.200.0/22
Down right: 115.31.204.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
115.31.200.2	PTR	notice.lilo.jp
115.31.200.2	A	noticesrv.notice.lilo.jp
115.31.200.8	PTR	115031200-8.lexues.net
115.31.200.9	PTR	115031200-9.lexues.net
115.31.200.10	PTR	115031200-10.lexues.net
115.31.200.27	PTR	115031200-27.lexues.net
115.31.200.35	PTR	115031200-35.lexues.net
115.31.200.58	PTR	115031200-58.lexues.net
115.31.200.63	PTR	115031200-63.lexues.net
115.31.200.76	PTR	115031200-76.lexues.net
115.31.200.79	PTR	115031200-79.lexues.net
115.31.200.85	PTR	115031200-85.lexues.net
115.31.200.88	PTR	115031200-88.lexues.net
115.31.200.94	PTR	cs-support-eid.fujifilm.co.jp
115.31.200.104	A+PTR	msgtims.fujifilm.co.jp
115.31.200.119	A	repo.fujifilm-software.co.jp
115.31.200.121	PTR	115031200-121.lexues.net
115.31.200.122	PTR	115031200-122.lexues.net
115.31.200.123	A+PTR	www.simple-sup.jp
115.31.200.194	PTR	gnz2.itc.kansai-u.ac.jp
115.31.200.195	PTR	115031200-195.lexues.net
115.31.200.209	PTR	115031200-209.lexues.net
115.31.200.210	PTR	115031200-210.lexues.net
115.31.200.210	A	ns02.pipesh.net
115.31.200.210	A	pipesh.co.jp
115.31.200.211	PTR	115031200-211.lexues.net
115.31.200.212	A	mail.chimeramusic.jp
115.31.200.218	PTR	115031200-218.lexues.net
115.31.200.224	PTR	115031200-224.lexues.net
115.31.200.225	PTR	115031200-225.lexues.net
115.31.200.242	PTR	115031200-242.lexues.net
115.31.200.251	PTR	115031200-251.lexues.net
115.31.201.17	A	mail.awavision.com
115.31.201.69	A	ksrg.org
115.31.201.69	A	rdb.lits-tr.org
115.31.201.69	A	cardiol-ph.com
115.31.201.91	A	nx.ct-portal.com
115.31.201.92	PTR	115031201-92.lexues.net
115.31.201.130	PTR	115031201-130.lexues.net
115.31.201.130	A	smtp.thinkware.jp
115.31.201.130	A	www.thinkware.jp
115.31.201.141	A	gd-ezure.jp
115.31.201.141	A	furi-kake.mobi
115.31.201.141	A	sengoku-mobile.net
115.31.201.143	PTR	115031201-143.lexues.net
115.31.201.146	PTR	115031201-146.lexues.net
115.31.201.146	A	ns.mailnavi.net
115.31.201.146	A	smtp1.mailnavi.net
115.31.201.147	PTR	115031201-147.lexues.net
115.31.201.148	PTR	115031201-148.lexues.net
115.31.201.153	PTR	115031201-153.lexues.net
115.31.201.153	A	mail.applyform.net
115.31.201.153	A	applyform.net
115.31.201.154	A	qrweb.jp
115.31.201.160	PTR	115031201-160.lexues.net
115.31.201.161	A	mail.yomippa.com
115.31.201.167	A	cinemastyle.jp
115.31.201.167	A	qlete.jp
115.31.201.171	PTR	115031201-171.lexues.net
115.31.201.171	A	iapp.hollywood-ch.com
115.31.201.171	A	hollywood-ch.com
115.31.201.176	A	52scoop.com
115.31.201.178	A	s-eiga.net
115.31.201.178	A	www.s-eiga.net
115.31.201.181	A	recipe.tabelatte.jp
115.31.201.184	A	okos.thinkware.jp
115.31.202.6	A	mail.ulfulclub.com
115.31.202.6	A	circletortoise.com
115.31.202.6	A	taisuke-faq.com
115.31.202.8	PTR	115031202-8.lexues.net
115.31.202.8	A	touyamamirei.com
115.31.202.8	A	mail.touyamamirei.com
115.31.202.9	PTR	115031202-9.lexues.net
115.31.202.9	A	mail.gackt-underland.jp
115.31.202.10	PTR	115031202-10.lexues.net
115.31.202.16	PTR	115031202-16.lexues.net
115.31.202.20	A	vixx.cjve.jp
115.31.202.24	PTR	115031202-24.lexues.net
115.31.202.25	PTR	115031202-25.lexues.net
115.31.202.33	PTR	115031202-33.lexues.net
115.31.202.35	PTR	115031202-35.lexues.net
115.31.202.42	PTR	115031202-42.lexues.net
115.31.202.43	PTR	115031202-43.lexues.net
115.31.202.48	PTR	115031202-48.lexues.net
115.31.202.64	PTR	115031202-64.lexues.net
115.31.202.65	PTR	115031202-65.lexues.net
115.31.202.65	A	www.mamastar.jp
115.31.202.65	A	mamastar.jp
115.31.202.66	A	p.mamastar.jp
115.31.202.66	A	amg.mamastar.jp
115.31.202.83	PTR	115031202-83.lexues.net
115.31.202.98	PTR	115031202-98.lexues.net
115.31.202.104	PTR	115031202-104.lexues.net
115.31.202.107	PTR	115031202-107.lexues.net
115.31.202.112	PTR	115031202-112.lexues.net
115.31.202.114	PTR	115031202-114.lexues.net
115.31.202.136	PTR	115031202-136.lexues.net
115.31.202.144	PTR	115031202-144.lexues.net
115.31.202.147	PTR	115031202-147.lexues.net
115.31.202.160	PTR	115031202-160.lexues.net
115.31.202.170	PTR	115031202-170.lexues.net
115.31.202.176	PTR	115031202-176.lexues.net
115.31.202.178	PTR	115031202-178.lexues.net
115.31.202.185	PTR	115031202-185.lexues.net
115.31.202.200	PTR	115031202-200.lexues.net
115.31.202.203	PTR	115031202-203.lexues.net
115.31.202.210	PTR	115031202-210.lexues.net
115.31.202.217	PTR	115031202-217.lexues.net
115.31.202.219	PTR	115031202-219.lexues.net
115.31.202.225	PTR	115031202-225.lexues.net
115.31.202.227	PTR	115031202-227.lexues.net
115.31.202.234	PTR	115031202-234.lexues.net
115.31.202.235	PTR	115031202-235.lexues.net