Robtex

Up: 27.90.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 27.90.0.0/17
Down right: 27.90.128.0/17
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
27.90.0.6	A	kd027090000006.ppp-bb.dion.ne.jp
27.90.0.25	A	kd027090000025.ppp-bb.dion.ne.jp
27.90.0.30	A	kd027090000030.ppp-bb.dion.ne.jp
27.90.0.32	A	kd027090000032.ppp-bb.dion.ne.jp
27.90.1.1	A+PTR	kd027090001001.ppp-bb.dion.ne.jp
27.90.1.5	A	kd027090001005.ppp-bb.dion.ne.jp
27.90.1.6	A	kd027090001006.ppp-bb.dion.ne.jp
27.90.1.10	A	kd027090001010.ppp-bb.dion.ne.jp
27.90.10.2	A	kd027090010002.ppp-bb.dion.ne.jp
27.90.12.168	A	kd027090012168.ppp-bb.dion.ne.jp
27.90.12.187	A	kd027090012187.ppp-bb.dion.ne.jp
27.90.28.251	A+PTR	kd027090028251.ppp-bb.dion.ne.jp
27.90.33.236	A+PTR	kd027090033236.ppp-bb.dion.ne.jp
27.90.34.0	A+PTR	kd027090034000.ppp-bb.dion.ne.jp
27.90.53.2	A+PTR	kd027090053002.ppp-bb.dion.ne.jp
27.90.53.8	A	kd027090053008.ppp-bb.dion.ne.jp
27.90.53.10	A	kd027090053010.ppp-bb.dion.ne.jp
27.90.53.24	A	kd027090053024.ppp-bb.dion.ne.jp
27.90.54.4	A+PTR	kd027090054004.ppp-bb.dion.ne.jp
27.90.54.30	A	kd027090054030.ppp-bb.dion.ne.jp
27.90.54.87	A	kd027090054087.ppp-bb.dion.ne.jp
27.90.54.158	A	kd027090054158.ppp-bb.dion.ne.jp
27.90.65.2	A+PTR	kd027090065002.ppp-bb.dion.ne.jp
27.90.65.3	A+PTR	kd027090065003.ppp-bb.dion.ne.jp
27.90.65.9	A	kd027090065009.ppp-bb.dion.ne.jp
27.90.65.10	A	kd027090065010.ppp-bb.dion.ne.jp
27.90.68.4	A+PTR	kd027090068004.ppp-bb.dion.ne.jp
27.90.68.76	A	kd027090068076.ppp-bb.dion.ne.jp
27.90.68.106	A	kd027090068106.ppp-bb.dion.ne.jp
27.90.68.108	A	kd027090068108.ppp-bb.dion.ne.jp
27.90.72.54	A+PTR	kd027090072054.ppp-bb.dion.ne.jp
27.90.74.55	A	kd027090074055.ppp-bb.dion.ne.jp
27.90.74.89	A	kd027090074089.ppp-bb.dion.ne.jp
27.90.74.104	A	kd027090074104.ppp-bb.dion.ne.jp
27.90.74.106	A	kd027090074106.ppp-bb.dion.ne.jp
27.90.85.91	A+PTR	kd027090085091.ppp-bb.dion.ne.jp
27.90.104.8	A	kd027090104008.ppp-bb.dion.ne.jp
27.90.104.9	A	kd027090104009.ppp-bb.dion.ne.jp
27.90.104.13	A	kd027090104013.ppp-bb.dion.ne.jp
27.90.104.18	A	kd027090104018.ppp-bb.dion.ne.jp
27.90.134.2	PTR	chyisn002.bb.kddi.ne.jp
27.90.141.140	A	r1.sn-3qqp-ioqey.googlevideo.com
27.90.143.50	A	1xbet-zerkalo-rabochee.ru
27.90.165.86	A+PTR	sdp04.ezweb.ne.jp
27.90.165.113	A	tws.auone.jp
27.90.165.194	A+PTR	post-gate.kddi.com
27.90.165.195	A	athena2.kddi.com
27.90.168.12	A	r1---sn-3qqp-ioql6.googlevideo.com
27.90.168.12	A	r1.sn-3qqp-ioql6.googlevideo.com
27.90.168.13	A	r2.sn-3qqp-ioql6.googlevideo.com
27.90.168.13	A	r2---sn-3qqp-ioql6.googlevideo.com
27.90.189.10	A	kinkyumail.kddi.ne.jp
27.90.189.26	A	kinkyumail.kddi.ne.jp
27.90.189.37	A	kinkyumailtest.kddi.ne.jp
27.90.189.42	A	kinkyumailtest.kddi.ne.jp
27.90.191.210	PTR	tm4bbac02.bb.kddi.ne.jp
27.90.191.222	PTR	tm4bbac01.bb.kddi.ne.jp
27.90.191.226	PTR	tm4bbac02.bb.kddi.ne.jp
27.90.191.238	PTR	tm4bbac01.bb.kddi.ne.jp
27.90.196.14	A	app.search.ezweb.ne.jp
27.90.196.19	A+PTR	s019196090027.userreverse.cloud-platform.kddi.ne.jp
27.90.196.19	A	smtp.anicall.net
27.90.196.24	PTR	s024196090027.userreverse.cloud-platform.kddi.ne.jp
27.90.196.24	A	mail2.ims2.kddi.ne.jp
27.90.196.47	PTR	s047196090027.userreverse.cloud-platform.kddi.ne.jp
27.90.196.53	PTR	s053196090027.userreverse.cloud-platform.kddi.ne.jp
27.90.199.9	A	www.fgl.co.jp
27.90.199.22	A	s022199090027.userreverse.cloud-platform.kddi.ne.jp
27.90.199.56	PTR	s056199090027.userreverse.cloud-platform.kddi.ne.jp
27.90.199.56	A	dns2.recruit-km.co.jp
27.90.199.56	A	dns1.recruit-km.co.jp
27.90.200.17	A+PTR	s017200090027.seint-userreverse.kddi.ne.jp
27.90.200.129	A+PTR	s129200090027.seint-userreverse.kddi.ne.jp
27.90.201.33	A+PTR	s033201090027.seint-userreverse.kddi.ne.jp
27.90.201.188	A	mail.hzqexpo.com
27.90.205.72	A	fushinsha.ibk.ed.jp
27.90.205.74	PTR	s074205090027.userreverse.cloud-platform.kddi.ne.jp
27.90.205.74	A	www.tougei.museum.ibk.ed.jp
27.90.205.74	A	www.c-seinen.gakusyu.ibk.ed.jp
27.90.205.89	PTR	s089205090027.userreverse.cloud-platform.kddi.ne.jp
27.90.205.160	PTR	s160205090027.userreverse.cloud-platform.kddi.ne.jp
27.90.206.129	A+PTR	fpoym3-vezb1pro01.ezweb.ne.jp
27.90.207.1	A+PTR	fpoym3-vezb1pro01-s.ezweb.ne.jp
27.90.207.10	A	fpoym3-vezb1pro10-s.ezweb.ne.jp
27.90.207.13	A	fpoym3-vezb1pro13-s.ezweb.ne.jp
27.90.207.14	A	fpoym3-vezb1pro14-s.ezweb.ne.jp