Robtex

Up: 27.96.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 27.96.16.0/22
Down right: 27.96.20.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
27.96.16.0	A+PTR	27-96-16-0.rat.jp
27.96.16.1	A+PTR	gw.rat.jp
27.96.16.10	PTR	prvsvr01.rat.jp
27.96.16.10	A	mail.aftercare.jp
27.96.16.10	A	www.aftercare.jp
27.96.16.14	A	mail.comi-choku.com
27.96.16.14	A	mail.navi-comi.com
27.96.16.26	A+PTR	27-96-16-26.rat.jp
27.96.16.26	A	ns1.media-wing.com
27.96.16.26	A	mailgw.cyberz.co.jp
27.96.16.27	PTR	27-96-16-27.rat.jp
27.96.16.32	PTR	27-96-16-32.rat.jp
27.96.16.32	A	mailgw.cosael.co.jp
27.96.16.32	A	cosael.co.jp
27.96.16.40	PTR	27-96-16-39.rat.jp
27.96.16.40	A	j-its.com
27.96.16.101	A	27-96-16-101.rat.jp
27.96.16.104	A+PTR	27-96-16-104.rat.jp
27.96.16.104	A	ml.integnet.jp
27.96.16.104	A	ns1.integnet.jp
27.96.16.105	PTR	27-96-16-105.rat.jp
27.96.16.105	A	ns02.integnet.jp
27.96.16.112	A+PTR	27-96-16-112.rat.jp
27.96.16.113	PTR	rat.jp
27.96.16.113	A	ngy.jp
27.96.16.113	A	cyt.jp
27.96.16.114	PTR	27-96-16-114.rat.jp
27.96.16.115	PTR	27-96-16-115.rat.jp
27.96.16.117	A	8x8.jp
27.96.16.120	A+PTR	27-96-16-120.rat.jp
27.96.16.120	A	www.adm.jp
27.96.16.120	A	adm.jp
27.96.16.121	A+PTR	27-96-16-121.rat.jp
27.96.16.122	PTR	27-96-16-122.rat.jp
27.96.16.123	PTR	27-96-16-123.rat.jp
27.96.16.142	A	8x8.jp
27.96.16.147	PTR	27-96-16-147.rat.jp
27.96.16.147	A	mail.fugusashi.jp
27.96.16.147	A	excellent-foods.jp
27.96.16.152	A+PTR	27-96-16-152.rat.jp
27.96.16.152	A	seigadoh.jp
27.96.16.152	A	syouki.net
27.96.16.153	PTR	27-96-16-153.rat.jp
27.96.16.161	PTR	27-96-16-161.rat.jp
27.96.16.161	A	siz.jp
27.96.16.161	A	mail.e-shinsei.info
27.96.16.170	PTR	27-96-16-170.rat.jp
27.96.16.170	A	www.protoleaf.com
27.96.16.176	A	27-96-16-176.rat.jp
27.96.16.205	A	atrg.jp
27.96.16.205	A	ns2.iwapt.org
27.96.16.205	A	iwapt.org
27.96.16.208	A+PTR	27-96-16-208.rat.jp
27.96.16.209	A+PTR	27-96-16-209.rat.jp
27.96.16.214	A	27-96-16-214.rat.jp
27.96.16.221	A	27-96-16-221.rat.jp
27.96.16.221	A	rimos.jp
27.96.16.235	A+PTR	27-96-16-235.rat.jp
27.96.16.235	A	ai-gakkai.or.jp
27.96.16.235	A	*.ai-gakkai.or.jp
27.96.16.241	PTR	27-96-16-241.rat.jp
27.96.16.241	A	tana-can.com
27.96.16.241	A	mail.comi-choku.com