Robtex

Up: 203.253.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 203.253.128.0/21
Down right: 203.253.136.0/21
(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
203.253.128.155	PTR	www.motor-tech.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