Robtex

Up: 61.121.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 61.121.0.0/18
Down right: 61.121.64.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
61.121.0.0	PTR	ppp-net.infoweb.ne.jp
61.121.0.1	A+PTR	ntchba272001.chba.nt.ngn.ppp.infoweb.ne.jp
61.121.0.2	A+PTR	ntchba272002.chba.nt.ngn.ppp.infoweb.ne.jp
61.121.0.3	A+PTR	ntchba272003.chba.nt.ngn.ppp.infoweb.ne.jp
61.121.0.4	A	ntchba272004.chba.nt.ngn.ppp.infoweb.ne.jp
61.121.2.0	PTR	ppp-net.infoweb.ne.jp
61.121.2.2	A+PTR	nttkyo018002.tkyo.nt.isdn.ppp.infoweb.ne.jp
61.121.2.4	A	nttkyo018004.tkyo.nt.isdn.ppp.infoweb.ne.jp
61.121.2.7	A	nttkyo018007.tkyo.nt.isdn.ppp.infoweb.ne.jp
61.121.3.2	A	nttkyo019002.tkyo.nt.isdn.ppp.infoweb.ne.jp
61.121.6.2	A+PTR	nttkyo022002.tkyo.nt.isdn.ppp.infoweb.ne.jp
61.121.9.64	A	mail.ayabe.org
61.121.9.82	A	yakiishi.com
61.121.10.191	A	ntszok081191.szok.nt.ftth.ppp.infoweb.ne.jp
61.121.10.195	A	ntszok081195.szok.nt.ftth.ppp.infoweb.ne.jp
61.121.11.46	A	ntszok082046.szok.nt.ftth.ppp.infoweb.ne.jp
61.121.11.142	A	ntszok082142.szok.nt.ftth.ppp.infoweb.ne.jp
61.121.12.2	A+PTR	ntszok079002.szok.nt.ngn.ppp.infoweb.ne.jp
61.121.12.107	A	ntehme030107.ehme.nt.ngn2.ppp.infoweb.ne.jp
61.121.13.136	A	tkhc.net
61.121.14.56	A	ntfkok041056.fkok.nt.adsl.ppp.infoweb.ne.jp
61.121.14.86	A	ntfkok041086.fkok.nt.adsl.ppp.infoweb.ne.jp
61.121.15.190	A	ntfkok042190.fkok.nt.adsl.ppp.infoweb.ne.jp
61.121.16.2	A	nttkyo032002.tkyo.nt.adsl.ppp.infoweb.ne.jp
61.121.17.16	A	nttkyo033016.tkyo.nt.adsl.ppp.infoweb.ne.jp
61.121.17.28	A	nttkyo033028.tkyo.nt.adsl.ppp.infoweb.ne.jp
61.121.17.190	A	nttkyo033190.tkyo.nt.adsl.ppp.infoweb.ne.jp
61.121.17.210	A	nttkyo033210.tkyo.nt.adsl.ppp.infoweb.ne.jp
61.121.17.240	A	nttkyo033240.tkyo.nt.adsl.ppp.infoweb.ne.jp
61.121.18.7	A	nttkyo034007.tkyo.nt.adsl.ppp.infoweb.ne.jp
61.121.18.9	A	nttkyo034009.tkyo.nt.adsl.ppp.infoweb.ne.jp
61.121.18.15	A	nttkyo034015.tkyo.nt.adsl.ppp.infoweb.ne.jp
61.121.18.19	A	nttkyo034019.tkyo.nt.adsl.ppp.infoweb.ne.jp
61.121.18.132	A	nttkyo034132.tkyo.nt.adsl.ppp.infoweb.ne.jp
61.121.18.138	A	nttkyo034138.tkyo.nt.adsl.ppp.infoweb.ne.jp
61.121.18.139	A	nttkyo034139.tkyo.nt.adsl.ppp.infoweb.ne.jp
61.121.18.148	A	nttkyo034148.tkyo.nt.adsl.ppp.infoweb.ne.jp
61.121.19.2	A	nttkyo035002.tkyo.nt.adsl.ppp.infoweb.ne.jp
61.121.21.2	A+PTR	tcatgi149002.adsl.ppp.infoweb.ne.jp
61.121.25.166	A	ntchba193166.chba.nt.ngn.ppp.infoweb.ne.jp
61.121.25.182	A	ntchba193182.chba.nt.ngn.ppp.infoweb.ne.jp
61.121.26.2	A	tcatgi150002.adsl.ppp.infoweb.ne.jp
61.121.27.0	PTR	ppp-net.infoweb.ne.jp
61.121.28.166	A	tcatgi152166.adsl.ppp.infoweb.ne.jp
61.121.30.1	A	ntakta034001.akta.nt.ftth.ppp.infoweb.ne.jp
61.121.30.74	A	ntakta034074.akta.nt.ftth.ppp.infoweb.ne.jp
61.121.32.184	A	ntkyto101056.kyto.nt.ftth2.ppp.infoweb.ne.jp
61.121.32.230	A	ntkyto101102.kyto.nt.ftth2.ppp.infoweb.ne.jp
61.121.36.202	A	ntfkok044202.fkok.nt.adsl.ppp.infoweb.ne.jp
61.121.37.164	A	ntfkok045164.fkok.nt.adsl.ppp.infoweb.ne.jp
61.121.39.212	A	ntchba194212.chba.nt.ngn.ppp.infoweb.ne.jp
61.121.40.85	A	ns1.zutchi.com
61.121.41.149	A	ntchba196149.chba.nt.ngn.ppp.infoweb.ne.jp
61.121.46.66	A	ntnara026066.nara.nt.ftth.ppp.infoweb.ne.jp
61.121.46.187	A	ntnara026187.nara.nt.ftth.ppp.infoweb.ne.jp
61.121.54.33	A	mail.planetsint.com
61.121.56.188	A	nthygo009188.hygo.nt.isdn.ppp.infoweb.ne.jp
61.121.56.241	A	nthygo009241.hygo.nt.isdn.ppp.infoweb.ne.jp
61.121.60.23	A	ntiwte035023.iwte.nt.ftth.ppp.infoweb.ne.jp
61.121.60.31	A	ntiwte035031.iwte.nt.ftth.ppp.infoweb.ne.jp
61.121.60.254	A	ntiwte035254.iwte.nt.ftth.ppp.infoweb.ne.jp
61.121.62.242	A	nthrsm039242.hrsm.nt.ngn.ppp.infoweb.ne.jp
61.121.63.0	PTR	ppp-net.infoweb.ne.jp
61.121.63.1	A	nthrsm040001.hrsm.nt.ngn2.ppp.infoweb.ne.jp
61.121.63.14	A	nthrsm040014.hrsm.nt.ngn2.ppp.infoweb.ne.jp
61.121.63.23	A	nthrsm040023.hrsm.nt.ngn2.ppp.infoweb.ne.jp
61.121.69.0	PTR	ppp-net.infoweb.ne.jp
61.121.71.207	A	eatkyo06207.adsl.ppp.infoweb.ne.jp
61.121.77.149	A	*.ef65.com
61.121.90.16	A	nthygo057016.hygo.nt.adsl.ppp.infoweb.ne.jp
61.121.90.181	A	nthygo057181.hygo.nt.adsl.ppp.infoweb.ne.jp
61.121.91.55	A	mail.ykhm.net
61.121.94.3	A	nttkyo320003.tkyo.nt.ftth3.ppp.infoweb.ne.jp
61.121.94.34	A	nttkyo320034.tkyo.nt.ftth3.ppp.infoweb.ne.jp
61.121.94.42	A	nttkyo320042.tkyo.nt.ftth3.ppp.infoweb.ne.jp
61.121.94.52	A	nttkyo320052.tkyo.nt.ftth3.ppp.infoweb.ne.jp
61.121.94.148	A	matanweb.com
61.121.95.201	A	hamai.biz
61.121.95.201	A	nttcgi042009.tcgi.nt.ftth2.ppp.infoweb.ne.jp
61.121.95.201	A	mail.hamai.biz
61.121.98.81	A	hwm602.hosting.nifty.com
61.121.98.82	A	hcbz601.hosting.nifty.com
61.121.98.140	PTR	mail.mcdcrew.jp
61.121.98.140	A	www.mcdcrew.jp
61.121.98.143	PTR	hde503.rx.nifty.ad.jp
61.121.98.143	A	mail.w.mdj.jp
61.121.98.146	A	mcdonalds.co.jp
61.121.98.146	A	w.mcdonalds.co.jp
61.121.100.19	A	blog509.cocolog-nifty.com
61.121.100.50	A	blog510.cocolog-nifty.com
61.121.100.51	A+PTR	blog511.cocolog-nifty.com
61.121.100.52	A	blog512.cocolog-nifty.com
61.121.100.222	A	authlog501.nifty.com
61.121.102.77	A	ids2.advantest.co.jp
61.121.102.97	A	acs-web.advantest.co.jp
61.121.102.100	A	mx1.advantest.com
61.121.102.100	A	mx1.advantest.co.jp
61.121.102.132	A	ufjnicos-loan.jp
61.121.102.132	A	smartplus.jp
61.121.102.132	A	593593.jp
61.121.103.50	A	www.nippon-sapuri.com
61.121.103.50	A	nippon-sapuri.com
61.121.103.67	A	chut-intimates.net
61.121.103.158	A	felib-vrf.fujielectric.co.jp
61.121.104.34	A+PTR	ns01.ad-hzm.co.jp
61.121.104.34	A	ns01.aoyamakiko.co.jp
61.121.104.34	A	ns01.ad-hzmkg.co.jp
61.121.104.37	A	sf01.ad-hzmkg.co.jp
61.121.104.139	A	dns01.supercals.jp
61.121.104.172	A	dns03.supercals.jp
61.121.104.183	A	ns1.e-hyogo.jp
61.121.104.196	A	dns31.supercals.jp
61.121.105.0	PTR	service-net.infoweb.ne.jp
61.121.105.86	A	nets.nichiryu.co.jp
61.121.105.100	A	haken-excel.panasonic.co.jp
61.121.105.134	A	gw.suzuken.co.jp
61.121.105.137	A	mail.suzuken.co.jp
61.121.105.137	A	mail.kksanki.co.jp
61.121.105.137	A	mail.shoyaku.com
61.121.107.2	A	www.e-kessai.com
61.121.107.17	A	seibi-sharyou.nittsushoji.co.jp
61.121.107.23	A	sekiyu.nittsushoji.co.jp
61.121.107.29	A	www6.nittsushoji.co.jp
61.121.107.168	PTR	extra.ushio.co.jp
61.121.107.195	A+PTR	spcxmail.secpac.jp
61.121.107.197	A	home.secpac.jp
61.121.107.198	A	spmail1.secpac.jp
61.121.107.199	A	www.secpac.jp
61.121.108.0	PTR	service-net.infoweb.ne.jp
61.121.108.123	A	ns.yensai.com
61.121.108.124	A	ns2.yensai.com
61.121.108.131	A	shopping-travel.com
61.121.108.131	A	crsinter.shopping-travel.com
61.121.108.132	A	crswk01.shopping-travel.com
61.121.108.140	A	crswk03.shopping-travel.com
61.121.110.0	PTR	service-net.infoweb.ne.jp
61.121.110.49	A	dns.remcs.net
61.121.110.129	A	ns1.moneykit.net
61.121.110.131	A+PTR	ns2.moneykit.net
61.121.110.138	A	sec.moneykit.net
61.121.110.164	A	mail.sonybank.net
61.121.112.113	A+PTR	mail3.suzuken.co.jp
61.121.112.113	A	mail3.shoyaku.com
61.121.112.114	A+PTR	mail4.suzuken.co.jp
61.121.112.114	A	mail4.shoyaku.com
61.121.112.178	A	003003.jp
61.121.112.179	A	200777.jp
61.121.113.0	PTR	service-net.infoweb.ne.jp
61.121.113.67	A	tinker01.jpdata.net
61.121.113.67	A	nsdk1.nsc.ac.jp
61.121.113.71	A	nozzeneo.com
61.121.113.71	A	kkatsu.com
61.121.113.130	A	mcimx01.mitsui-chem.co.jp
61.121.113.130	A	mcimx01.j-comp.co.jp
61.121.113.131	A+PTR	mcimx02.mitsui-chem.co.jp
61.121.113.131	A	mcimx02.j-comp.co.jp
61.121.114.33	A	ext01.mitsui-chem.co.jp
61.121.114.37	A	www.precs.mitsui-chem.co.jp
61.121.114.105	A	nhgsui03.iwaicosmo.co.jp
61.121.114.106	A	nhgsui04.iwaicosmo.co.jp
61.121.114.163	A	www.ja-kyosai.or.jp
61.121.114.242	A	oyama-tcg.ed.jp
61.121.114.242	A	ns.oyama-tcg.ed.jp
61.121.114.243	A	mail.oyama-tcg.ed.jp
61.121.115.0	PTR	service-net.infoweb.ne.jp
61.121.115.32	A	ticket.johnnys-web.com
61.121.115.114	A	mail01.eplus.jp
61.121.115.116	A	mail.eplus.jp
61.121.116.37	PTR	z-mail.intercrus.jp
61.121.116.67	A	www.siyaku.com
61.121.116.67	A	siyakusv1.siyaku.com
61.121.116.77	A	web01-22.reagent-r.com
61.121.116.203	PTR	pocky.jp
61.121.116.237	A	fmjal.interport.ne.jp
61.121.116.239	A	fmjalmx.interport.ne.jp
61.121.116.245	A	fmjalpx2.interport.ne.jp
61.121.116.247	A	fmjalpx.interport.ne.jp
61.121.118.82	A	orijinfro.store.sony.jp
61.121.118.103	A	qa.support.sony.jp
61.121.118.108	A	vcl.vaio.sony.co.jp
61.121.118.195	A	ns.toto.co.jp
61.121.118.226	A	fw.yomeishu.co.jp
61.121.118.227	A	ns.yomeishu.jp
61.121.118.227	A	ns.yomeishu.co.jp
61.121.119.0	PTR	service-net.infoweb.ne.jp
61.121.119.130	A	internavi.jp
61.121.119.142	A	m1.internavi.jp
61.121.120.0	PTR	service-net.infoweb.ne.jp
61.121.120.7	A	ns1.ken1-toto-dream.com
61.121.120.7	A	ns.ken1-toto-dream.com
61.121.120.8	A	ns2.ken1-toto-dream.com
61.121.120.164	A	front.f-intra.jp
61.121.120.166	A	outgw.f-intra.jp
61.121.120.186	A	ns-t.f-intra.jp
61.121.120.234	A	ns1.em.circleksunkus.jp
61.121.123.101	A	ttb6-ip101.user.xsp.fenics.jp
61.121.123.121	A	www.tokyo-kosha.or.jp