Robtex

Up: 210.253.120.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 210.253.121.0/25
Down right: 210.253.121.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.253.121.1	PTR	gmo-hs-210-253-121-1seg24-isle48.interq.or.jp
210.253.121.45	PTR	climarks.com
210.253.121.51	PTR	big-score.com
210.253.121.51	A	lounge-r.com
210.253.121.51	A	mail.lounge-r.com
210.253.121.55	PTR	www2.m-cs.net
210.253.121.55	A	mail.hirooku.com
210.253.121.55	A	www.cyberquest.co.jp
210.253.121.57	A	j-cool.tv
210.253.121.59	A	mail.aeon-takasaki.com
210.253.121.69	A	mail.ac-mgr.com
210.253.121.69	A	jp.gmo-hs.jp
210.253.121.71	PTR	futsalsite.com
210.253.121.71	A	ns.acoustic-garden.com
210.253.121.71	A	mail.acoustic-garden.com
210.253.121.79	PTR	oshima.info
210.253.121.79	A	ceram-attaka.com
210.253.121.79	A	mail.ia-lab.jp
210.253.121.87	PTR	cu2.ideal-design.jp
210.253.121.99	PTR	capasite.jp
210.253.121.103	A+PTR	navit-mobile.jp
210.253.121.131	A	ns.theworks.jp
210.253.121.131	A	theworks.jp
210.253.121.131	A	mail.theworks.jp
210.253.121.133	PTR	x-mobile.jp
210.253.121.134	A	magt.jp
210.253.121.134	A	mail.magt.jp
210.253.121.134	A	ns.magt.jp
210.253.121.137	PTR	ats.co.jp
210.253.121.137	A	mail.perth-info.jp
210.253.121.137	A	mail.kuchikomi-australia.jp
210.253.121.143	A	mail.chakodamari.jp
210.253.121.147	PTR	highclick.jp
210.253.121.151	PTR	alltechnoprofessional.com
210.253.121.151	A	p-free.jp
210.253.121.151	A	mail.p-free.jp
210.253.121.153	PTR	b-ent.jp
210.253.121.155	A	navit-mobile-test.jp
210.253.121.157	PTR	architec.jp
210.253.121.157	A	media-tek.co.jp
210.253.121.197	PTR	ats-nz.jp
210.253.121.197	A	mail.ats-nz.jp
210.253.121.198	A+PTR	australia-rentacar.com
210.253.121.198	A	mail.australia-rentacar.com