Robtex

Up: 61.121.192.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 61.121.208.0/21
Down right: 61.121.216.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
61.121.208.1	PTR	zns05.data-hotel.net
61.121.208.2	PTR	zns06.data-hotel.net
61.121.208.11	A	tftp.bitcat.ne.jp
61.121.208.97	A	kabuki-450-l.bitcat.net
61.121.209.70	A	uyono-19.bitcat.net
61.121.210.70	A	ns1.cerego.com
61.121.210.106	A	61-121-210-106.bitcat.net
61.121.211.98	A	61-121-211-98.bitcat.net
61.121.211.100	A	mail.mitsuikanri-kansai.co.jp
61.121.211.172	A	teamf2p.com
61.121.211.182	A	amosstyle-blog.com
61.121.211.182	A	shopblog.starvations.com
61.121.211.182	A	www.kh-shopblog.com
61.121.211.246	A	mids21ex.mitsui-kanri.co.jp
61.121.212.1	PTR	61-121-212-1.bitcat.net
61.121.212.3	A	mx.elematec.com
61.121.212.3	A	mx.takachiho.co.jp
61.121.212.5	A	mx2.takachiho.co.jp
61.121.212.6	A	diva.takachiho.co.jp
61.121.212.208	PTR	61-121-212-208.dh-connect.net
61.121.212.208	A	61-121-212-208.bitcat.net
61.121.212.209	A	61-121-212-209.bitcat.net
61.121.212.210	A	61-121-212-210.bitcat.net
61.121.212.211	A	61-121-212-211.bitcat.net
61.121.212.224	A	61-121-212-224.bitcat.net
61.121.212.225	A	61-121-212-225.bitcat.net
61.121.212.226	A	61-121-212-226.bitcat.net
61.121.212.227	A	61-121-212-227.bitcat.net
61.121.213.46	A	61-121-213-46.bitcat.net
61.121.214.17	A	61-121-214-17.bitcat.net
61.121.214.51	PTR	belford.mitsuihome.co.jp
61.121.214.51	A	mitsui-reform.co.jp
61.121.214.51	A	mitsuihome-gunma.com
61.121.214.52	PTR	61.121.214.52
61.121.214.83	A	ns.uip.co.jp
61.121.214.98	A	e2r.jp
61.121.214.98	A	alt.e2r.jp
61.121.214.98	A	portal.e2r.jp
61.121.214.99	A	opt.portal.e2r.jp
61.121.214.120	A	mail.e2r.jp
61.121.214.120	A	mail21.e2r.jp
61.121.214.123	A	e2r.jp
61.121.214.123	A	saiyou.jbic.go.jp
61.121.214.123	A	jobs-sekisuihouse.jp
61.121.214.154	A	icafe-mb.com
61.121.214.154	A	mail.icafe-mb.com
61.121.215.131	A	61-121-215-131.bitcat.net
61.121.216.16	A	61-121-216-16.bitcat.net
61.121.216.17	A	61-121-216-17.bitcat.net
61.121.216.18	A	61-121-216-18.bitcat.net
61.121.216.19	A	61-121-216-19.bitcat.net
61.121.216.32	A	61-121-216-32.bitcat.net
61.121.216.33	A	61-121-216-33.bitcat.net
61.121.216.34	A	61-121-216-34.bitcat.net
61.121.216.35	A	61-121-216-35.bitcat.net
61.121.216.48	A	61-121-216-48.bitcat.net
61.121.216.49	A	61-121-216-49.bitcat.net
61.121.216.50	A	61-121-216-50.bitcat.net
61.121.216.51	A	61-121-216-51.bitcat.net
61.121.216.80	A	61-121-216-80.bitcat.net
61.121.216.81	A	61-121-216-81.bitcat.net
61.121.216.82	A	61-121-216-82.bitcat.net
61.121.216.83	A	61-121-216-83.bitcat.net
61.121.216.128	A	61-121-216-128.bitcat.net
61.121.216.129	A	61-121-216-129.bitcat.net
61.121.216.130	A+PTR	61-121-216-130.bitcat.net
61.121.216.131	A	61-121-216-131.bitcat.net
61.121.216.152	A	61-121-216-152.bitcat.net
61.121.216.153	A	61-121-216-153.bitcat.net
61.121.216.154	A	61-121-216-154.bitcat.net
61.121.216.155	A	61-121-216-155.bitcat.net
61.121.216.160	A	61-121-216-160.bitcat.net
61.121.216.161	A	61-121-216-161.bitcat.net
61.121.216.162	A	61-121-216-162.bitcat.net
61.121.216.163	A	61-121-216-163.bitcat.net
61.121.216.176	A	61-121-216-176.bitcat.net
61.121.216.177	A	61-121-216-177.bitcat.net
61.121.216.178	A+PTR	61-121-216-178.bitcat.net
61.121.216.179	A	61-121-216-179.bitcat.net
61.121.217.18	A+PTR	ns.act.ne.jp
61.121.217.18	A	act-is.co.jp
61.121.217.18	A	act.ne.jp
61.121.217.24	A	sapienza.jp
61.121.217.35	PTR	61-121-217-35.bitcat.net
61.121.217.38	A	koubai.granvista.co.jp
61.121.217.39	A	isvw.granvista.co.jp
61.121.217.66	PTR	61-121-217-66.bitcat.net
61.121.217.74	A	gccmail03.dihkj.or.jp
61.121.217.74	A	mx.dihkj.or.jp
61.121.217.75	A	gccmail02.dihkj.or.jp
61.121.217.80	PTR	jmrlsi.co.jp
61.121.217.115	A	61-121-217-115.bitcat.net
61.121.217.246	PTR	61-121-217-246.dh-connect.net
61.121.218.198	A	61-121-218-198.bitcat.net
61.121.220.52	A	61-121-220-52.bitcat.net
61.121.220.121	A	61-121-220-121.bitcat.net
61.121.221.236	A	61-121-221-236.bitcat.net
61.121.222.23	A	upfields.net
61.121.222.23	A	upfields.org
61.121.222.23	A	upfields.jp
61.121.223.66	A	61-121-223-66.bitcat.net
61.121.223.83	PTR	61-121-223-83.bitcat.net
61.121.223.83	A	mail.medc.co.jp
61.121.223.83	A	dns.medc.co.jp
61.121.223.85	A	test.medc.jp
61.121.223.102	A	rce.jp
61.121.223.107	A	sakanaction.com
61.121.223.225	PTR	61-121-223-225.dh-connect.net
61.121.223.225	A	zeke.jp
61.121.223.225	A	ns.koto-nara.com