Robtex

Up: 203.253.128.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 203.253.128.0/20
Down right: 203.253.144.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.253.128.2	PTR	ketopia.keti.kr
203.253.128.2	PTR	nuri.keti.re.kr
203.253.128.2	A+PTR	webmail.keti.re.kr
203.253.128.7	PTR	nuri0.keti.kr
203.253.128.7	PTR	nuri0.keti.re.kr
203.253.128.7	PTR	keti.re.kr.keti.re.kr
203.253.128.44	A+PTR	smf.keti.kr
203.253.128.44	A+PTR	smf.keti.re.kr
203.253.128.145	A	www.keti.kr
203.253.128.152	A	open-iot.net
203.253.128.152	A	www.iotocean.org
203.253.128.152	A	www.iotmobius.com
203.253.128.163	A	open-iot.net
203.253.128.163	A	www.open-iot.net
203.253.128.237	A+PTR	nuri1.keti.re.kr
203.253.128.238	PTR	nuri0.keti.re.kr
203.253.132.76	A+PTR	www01.gem.re.kr
203.253.132.76	A+PTR	www.pbsb.re.kr
203.253.132.87	A	sybirg.kribb.re.kr
203.253.132.95	A	eos.kribb.re.kr
203.253.132.105	A	protein.kribb.re.kr
203.253.132.136	A	lcs.kribb.re.kr
203.253.132.171	A	mcr1.kribb.re.kr
203.253.134.232	A	dev.kribb.re.kr
203.253.146.46	A	control.kau.ac.kr
203.253.146.99	A	radar.institute
203.253.146.106	A	nc.hau.ac.kr
203.253.146.106	A	nc.kau.ac.kr
203.253.146.140	A	formal.kau.ac.kr
203.253.150.3	A	kaum.kau.ac.kr
203.253.150.16	PTR	nisl.hau.ac.kr
203.253.150.16	PTR	rsplab.hau.ac.kr
203.253.150.16	PTR	aerocamp.kau.ac.kr
203.253.150.35	A	abeek.kau.ac.kr
203.253.150.41	A	mail.kau.ac.kr
203.253.150.56	PTR	www.xn--ob0bug3cs5yf81coa4j.xn--3e0b707e
203.253.150.56	PTR	www.xn--ob0bug3cs5yf81coa4j.kr
203.253.150.56	PTR	xn--ob0bug3cs5yf81coa4j.xn--3e0b707e
203.253.150.97	A	ems.kau.ac.kr
203.253.150.137	A+PTR	dns1.hau.ac.kr
203.253.150.137	A+PTR	dns1.kau.ac.kr
203.253.150.138	A	dns2.hau.ac.kr
203.253.150.140	A+PTR	mail.kau.ac.kr
203.253.150.140	A	mail.hau.ac.kr
203.253.159.242	A	kau.kr
203.253.159.250	A	dns1.kau.ac.kr
203.253.159.250	A	dns3.kau.ac.kr