Robtex

Up: 1.224.186.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 1.224.187.0/25
Down right: 1.224.187.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
1.224.187.2	PTR	spam.cykanholdings.com
1.224.187.2	PTR	smf.nanoin.com
1.224.187.2	PTR	spam.varavon.com
1.224.187.12	A+PTR	mail.duzon.co.jp
1.224.187.12	PTR	test.duzon.co.jp
1.224.187.12	PTR	www.douzone.co.jp
1.224.187.14	A+PTR	mail.samchullyamc.com
1.224.187.14	A	mail.sig-fund.com
1.224.187.24	PTR	myfmc.or.kr
1.224.187.24	A	mail.myfmc.or.kr
1.224.187.36	A+PTR	yhenc.net
1.224.187.36	A+PTR	www.yhenc.net
1.224.187.37	A+PTR	mail.yhenc.com
1.224.187.39	A+PTR	yhenc.com
1.224.187.39	A+PTR	www.yhenc.com
1.224.187.42	PTR	mail.synex.co.kr
1.224.187.42	A	cas2.synex.co.kr
1.224.187.44	A	mail.synex.co.kr
1.224.187.45	PTR	oocom.net
1.224.187.45	A+PTR	www.oocom.net
1.224.187.58	PTR	mail.visionsemicon.co.kr
1.224.187.58	PTR	mail.visionsemicon.com
1.224.187.66	A+PTR	mail.mccable.com
1.224.187.67	PTR	bestin.icontrols.co.kr
1.224.187.67	PTR	bestin1.icontrols.co.kr
1.224.187.67	PTR	econ.icontrols.co.kr
1.224.187.68	PTR	wblock.icontrols.co.kr
1.224.187.72	PTR	m.dst.co.kr
1.224.187.72	PTR	mail.dst.co.kr
1.224.187.72	PTR	webmail.dst.co.kr
1.224.187.74	A+PTR	mail.pankor.kr
1.224.187.74	A	mail.hwanwoong.co.kr
1.224.187.75	A	www.wise.co.kr
1.224.187.75	A	wise.co.kr
1.224.187.86	PTR	luken.co.kr
1.224.187.87	PTR	luken.co.kr
1.224.187.89	A	portal.hdit.co.kr
1.224.187.92	A+PTR	mail.hyundaiit.com
1.224.187.92	A	mail.hyundait.com
1.224.187.92	A	mail.hdit.co.kr
1.224.187.96	A+PTR	spam.hyundaiit.com
1.224.187.96	PTR	spam.hdit.co.kr
1.224.187.96	A	spam.hyundait.co.kr
1.224.187.105	PTR	samsungsvc.co.kr
1.224.187.105	A	smartfilter.samsungsvc.co.kr
1.224.187.117	A	mail.cjfmc.or.kr
1.224.187.144	PTR	gw.gwanggyo.biz
1.224.187.144	A	gw.verygoodsign.com
1.224.187.144	A	mail36524.net
1.224.187.148	A	myfitcloud.com
1.224.187.152	A	ansgkrroqkf.com
1.224.187.162	PTR	ewootax.com
1.224.187.162	PTR	samiklaw.com
1.224.187.162	PTR	m.55ssem.com
1.224.187.168	A	joseilbo.kr
1.224.187.168	A	www.joseilbo.kr
1.224.187.168	A	joseilbo.co.kr
1.224.187.169	A+PTR	runbyrun.net
1.224.187.169	A+PTR	www.runbyrun.net
1.224.187.172	PTR	mail.ewootax.com
1.224.187.172	PTR	mail.joseilbo.com
1.224.187.172	A	mail.hanvitac.com
1.224.187.179	A	mail.joseilbo.kr
1.224.187.180	A	joseilbo.com
1.224.187.180	A	mail.xn--jj0b06zt9cm3h.com
1.224.187.180	A	mail.xn--on3b11frxg31a.com
1.224.187.181	A	mail.schoolsafe.or.kr
1.224.187.184	A	nsmartpos.co.kr
1.224.187.184	A	ksmartpos.com
1.224.187.184	A	www.nicesmartpos.com
1.224.187.187	A+PTR	stax.duzon.com
1.224.187.188	A+PTR	mail2.thezone4u.com
1.224.187.198	A	mail.gjfmc.or.kr