Robtex

Up: 121.53.192.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 121.53.200.0/22
Down right: 121.53.204.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
121.53.201.97	A	kakaointelligence.com
121.53.201.97	A	kakaoenterprisesolution.com
121.53.201.97	A	kakaoenterprise.com
121.53.201.195	A	shoppinghow.gl.kakao.com
121.53.201.207	A	stlog1-local.kakao.com
121.53.201.213	A	drawer-api.gl.kakao.com
121.53.201.215	A	commerce-sentry.kakao.com
121.53.201.216	A	place.map.kakao.com
121.53.201.236	A	t1.int.daumcdn.net
121.53.201.243	A	mx2.kakao.com
121.53.201.249	A	gargoyle.kakao.com
121.53.202.193	A	t1.int.kakaocdn.net
121.53.202.196	A	hades-proxy.v.gl.kakao.com
121.53.202.197	A	navisdk-api.gl.kakao.com
121.53.202.200	A	accounts.g.daum.net
121.53.202.205	A	sandbox-kakaonavi-wguide.kakao.com
121.53.202.210	A	www.kakaocommerce.com
121.53.202.219	A	realty.daum.net
121.53.202.227	A	adserver.rockwell.gl.kakao.com
121.53.202.238	A	t1.int.daumcdn.net
121.53.202.239	A	auto-api.daum.net
121.53.202.246	A	map.kakao.com
121.53.202.252	A	sandbox-smtp.kakao.com
121.53.202.254	A	project100.kakao.com
121.53.203.68	A	calendar-api.gl.kakao.com
121.53.203.73	A	makers-gateway.kakao.com
121.53.203.82	A	page-billing-web.kakao.com
121.53.203.83	A	brandsearch.ad.g.daum.net
121.53.203.84	A	cmail.kakao.com
121.53.203.92	A	display.ad.g.daum.net
121.53.203.197	A	webtalk.gl.kakao.com
121.53.204.131	A	blogproxy.daum.net
121.53.204.134	A	taxi-gateway.kakao.com
121.53.204.138	A	magazine.daum.net
121.53.204.144	A	gateway.webtoon.daum.net
121.53.204.146	A	nvpf-resource-8u5xvjoz.kgslb.com
121.53.204.159	A	navisdk-api.gl.kakao.com
121.53.204.160	A	push-tracker.kakao.com
121.53.204.162	A	brandsearch.kakao.com
121.53.205.196	A	alex-ws.daum.net
121.53.205.205	A	blog.daum.net
121.53.205.216	A	solar-middle.search.daum.net
121.53.205.226	A	story-wwyq1rml.kgslb.com
121.53.205.240	A	t1.int.kakaocdn.net