Robtex

Up: 210.90.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 210.91.0.0/17
Down right: 210.91.128.0/17
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.91.4.12	A	dwdfs.co.kr
210.91.5.170	A+PTR	mail.sejongpac.or.kr
210.91.5.170	A	mail.smmusical.or.kr
210.91.5.220	A	classicsafari.or.kr
210.91.5.220	A	www.sejongstory.or.kr
210.91.8.2	PTR	210-91-8-2.youiwe.co.kr
210.91.8.50	A	mail.inwel.org
210.91.8.57	A	hosungtex.com
210.91.8.57	A	www.hosungtex.com
210.91.10.161	PTR	semikor.com
210.91.11.130	A	ns.ganaart.com
210.91.11.130	A	ns.ganaartgallery.com
210.91.11.130	A	ns2.ganaart.com
210.91.14.65	PTR	comedu.co.kr
210.91.14.225	A	ns.toudaimon.co.kr
210.91.16.5	A+PTR	vw.segye.com
210.91.16.5	PTR	vw.sportsworldi.com
210.91.16.5	A	vw.segyefinance.co.kr
210.91.16.15	PTR	segye.com
210.91.19.35	A	phuketmaps.info
210.91.19.35	A	eumcom.net
210.91.23.167	A	ktspc.co.kr
210.91.29.85	A	sorez.co.kr
210.91.30.141	A	ns1.kadoption.or.kr
210.91.30.142	A	ns2.kadoption.or.kr
210.91.30.148	A	kcare.or.kr
210.91.30.149	A	mail.kcare.or.kr
210.91.31.11	A+PTR	mail.hani.co.kr
210.91.31.11	A	mail.hani.com
210.91.31.22	A	www.magazine21.co.kr
210.91.31.22	A	magazine21.co.kr
210.91.32.93	PTR	sunjin21.co.kr
210.91.32.97	A+PTR	mailserver.panpacific.co.kr
210.91.32.97	A	webmail.panpacific.co.kr
210.91.32.97	A	mail.panpacific.co.kr
210.91.32.98	PTR	sniper.panpacific.co.kr
210.91.35.17	A	cller.com
210.91.35.28	PTR	mail.zalman.co.kr
210.91.35.147	A	lfit.co.kr
210.91.35.147	A	www.lfit.co.kr
210.91.36.200	A	giyeon.net
210.91.40.11	A	hbsc188.com
210.91.40.11	A	rms188.com
210.91.40.11	A	sxsc588.com
210.91.41.80	A	autopion.com
210.91.42.1	A	unidus.com.sg
210.91.43.118	A	anggo.net
210.91.47.35	A	anygate.com
210.91.47.35	A	www.anygate.com
210.91.47.35	A	powerscene.net
210.91.50.70	A	fihkdc.com
210.91.50.70	A	fihtk.com
210.91.50.250	A	mail.gctsemicon.com
210.91.50.250	A	mail.gctsi.com
210.91.52.197	A	gopowernet.com
210.91.52.197	A	www.gopowernet.com
210.91.56.157	A	yumisam.com
210.91.56.157	A	hooniyoon.net
210.91.56.157	A	mylostworld.co.kr
210.91.59.176	A	mail.dooriworld.com
210.91.59.176	A	mail.globalwatch.co.kr
210.91.70.136	A	i-bricks.co.kr
210.91.70.136	A	www.i-bricks.co.kr
210.91.70.142	A	www.utopsoft.co.kr
210.91.70.142	A	utopsoft.co.kr
210.91.76.160	A+PTR	lakecc.co.kr
210.91.76.181	A	lakehillscc.co.kr
210.91.76.181	A	lakehills.co.kr
210.91.76.181	A	www.lakehillscc.co.kr
210.91.76.187	PTR	mail.lakehills.co.kr
210.91.78.193	A	ns.brassone.com
210.91.78.193	A	ns.brasone.com
210.91.78.202	A	mail.insteel.co.kr
210.91.78.209	PTR	mail.brasone.com
210.91.78.209	A	mail.essentech.co.kr
210.91.78.214	PTR	mail1.brasone.com
210.91.82.99	A	mail.dgcosmo.com
210.91.84.30	PTR	iji.co.kr
210.91.84.106	PTR	st21.co.kr
210.91.84.139	PTR	property21.co.kr
210.91.89.1	PTR	gw.danam.co.kr
210.91.89.1	PTR	danam.co.kr
210.91.95.46	A	century21cc.co.kr
210.91.95.61	A	century21cc.co.kr
210.91.95.61	A	www.century21cc.co.kr
210.91.108.3	A	mail.youho.co.kr
210.91.108.3	A	pc-server.youho.co.kr
210.91.108.3	A	youho.co.kr
210.91.108.5	A	www.youho.co.kr
210.91.109.134	A	arguseye.com
210.91.110.137	A+PTR	group.wooyang.co.kr
210.91.110.138	A+PTR	spam.wooyang.co.kr
210.91.117.200	A	open-air.co.kr
210.91.117.200	A	www.open-air.co.kr
210.91.117.220	PTR	banpotech.com
210.91.117.220	A	www.banpotech.com
210.91.117.242	A	mail.ctlinc.co.kr
210.91.124.204	A	steelbuy.com
210.91.124.204	A	hanilsteel.co.kr
210.91.124.204	A	www.coilcenter.co.kr
210.91.125.250	A	cheonwon.net
210.91.125.253	A	mail.cheonwon.net
210.91.125.253	A	mail.cheonwon.org
210.91.133.138	A	mail.netcodi.com
210.91.133.138	A	ns.netcodi.com
210.91.133.138	A	netcodi.com
210.91.134.2	A+PTR	mail.sindok.co.kr
210.91.145.10	A	mail.samkwang.com
210.91.145.10	A	edi.samkwang.com
210.91.146.205	A	sunghwakumdo.com
210.91.146.205	A	taeaschool.com
210.91.146.206	A	organic2me.com
210.91.146.206	A	ns.hi4989.com
210.91.152.33	A	car.daegu.go.kr
210.91.157.138	A	helpline.co.kr
210.91.165.182	A	www.regia.or.kr
210.91.165.182	A	regia.or.kr
210.91.165.184	A	cathms.kr
210.91.165.184	A	www.cathms.or.kr
210.91.177.184	PTR	dubinet.com
210.91.179.211	A	bloodcat.com
210.91.188.197	A	questsw.co.kr
210.91.194.2	A	jjan.kr
210.91.194.2	A	jeonbukilbo.com
210.91.194.2	A	ns.jeonbukilbo.co.kr
210.91.194.242	PTR	mail.jjan.co.kr
210.91.206.84	PTR	www.sppyce.com
210.91.206.86	PTR	mail.sppyce.com
210.91.206.86	PTR	sppyceex.sppyce.com
210.91.217.3	A	www.cjsisul.or.kr
210.91.217.3	A	cjmokryeon.net
210.91.217.3	A	www.cjmokryeon.net
210.91.217.210	PTR	ns.ad-tech.co.kr
210.91.218.103	A	controlsystem.co.kr
210.91.218.103	A	s1.controlsystem.co.kr
210.91.223.240	A	youshindang.com
210.91.225.66	A	xn--hy1b875ae7l.com
210.91.225.164	A	sepratek.com
210.91.225.164	A	mail.sepratek.com
210.91.225.195	A	esentech.kr
210.91.226.5	A	fw.lightron.co.kr
210.91.226.6	A	www.lightron.co.kr
210.91.226.6	A	lightron.co.kr
210.91.226.6	A	lightronus.com
210.91.226.10	PTR	mail.lightron.co.kr
210.91.237.1	A	www.ine.co.kr
210.91.237.1	A	ine.co.kr
210.91.237.2	A	mail.ine.co.kr
210.91.237.2	A	mail2.ine.co.kr