Robtex

Up: 27.131.240.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 27.131.240.0/23
Down right: 27.131.242.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
27.131.240.14	A	ca0038.1000server.jp
27.131.240.17	A	365azure.net
27.131.240.17	A	mail.365azure.net
27.131.240.17	A	ca0041.1000server.jp
27.131.240.19	A	ca0043.1000server.jp
27.131.240.20	A	ca0046.1000server.jp
27.131.240.20	A	kg-server.com
27.131.240.22	A	ca0048.1000server.jp
27.131.240.23	A	ca0049.1000server.jp
27.131.240.24	A	ca0050.1000server.jp
27.131.240.25	A	ca0051.1000server.jp
27.131.240.26	PTR	ca0052.1000server.jp
27.131.240.26	A	mail.fxm1.com
27.131.240.26	A	mx1.pepperstone.jp
27.131.240.29	A	ca0055.1000server.jp
27.131.240.33	A+PTR	bp-g-ssl.jp
27.131.240.35	PTR	bridal-produce.co.jp
27.131.240.35	A	bp-members.com
27.131.240.35	A	weddingfesta.jp
27.131.240.41	A	ca0086.1000server.jp
27.131.240.42	A+PTR	ca0087.1000server.jp
27.131.240.48	A+PTR	mail.scale.co.jp
27.131.240.48	A	scale.co.jp
27.131.240.48	A	dns1.scale.co.jp
27.131.240.53	A	www.sk2-skig.co.jp
27.131.240.53	A	sk2-skig.co.jp
27.131.240.88	A	kenou-blog.jp
27.131.240.89	A+PTR	ca0160.1000server.jp
27.131.240.89	A	its.co.jp
27.131.240.110	A	www.mobinect.net
27.131.240.122	PTR	sv.frontpage.co.jp
27.131.240.122	A	zexceed.com
27.131.240.122	A	mail.okamuratakako.com
27.131.240.136	A	confluence.jp
27.131.240.149	A	machismail.com
27.131.240.150	A+PTR	acemail.jp
27.131.240.150	A	mx01.acemail.jp
27.131.240.150	A	www.acemail.jp
27.131.240.194	A	hosting01.smartrams.jp
27.131.240.194	A	maehara.ne.jp
27.131.240.194	A	migiude.co.jp
27.131.240.195	A	mail01.crust.ad.jp
27.131.240.197	A	mail.nap-network.com
27.131.240.214	PTR	mail.u-zo.jp
27.131.240.214	A	u-zo.com
27.131.240.214	A	ns03.u-zo.com
27.131.241.11	A	ns.horinouchi-soap.mobi
27.131.241.11	A	ns2.ha-s.jp
27.131.241.11	A	mail.el-y.co
27.131.241.12	A	domomo.jp
27.131.241.12	A	mail.domomo.jp
27.131.241.12	A	ns.domomo.jp
27.131.241.19	A	shiro0819.jp
27.131.241.25	A+PTR	mail.white-c.net
27.131.241.25	A	www.white-c.net
27.131.241.25	A	white-c.net
27.131.241.26	PTR	mail.accea.co.jp
27.131.241.28	A	asakusa.net
27.131.241.28	A	rakusaijin.com
27.131.241.28	A	www.asakusa.net
27.131.241.33	A	awachiku.mandala.ne.jp
27.131.241.33	A	art-shinseido.com
27.131.241.33	A	folk-gala-square.net
27.131.241.38	A	slozuva.com
27.131.241.44	A	simple-crm.net
27.131.241.52	A	www.jpca-graphica.jp
27.131.241.53	PTR	gazo-srv.jpca-graphica.jp