Robtex

Up: 180.131.2.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 180.131.2.0/25
Down right: 180.131.2.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
180.131.2.5	A	mail.dltc.co.kr
180.131.2.5	A	elitedoor.co.kr
180.131.2.5	A	k-team.co.kr
180.131.2.6	PTR	mail.gdsys.co.kr
180.131.2.6	A+PTR	mail.lawfirm.co.kr
180.131.2.6	A+PTR	hpmailkr.pelzer.co.kr
180.131.2.12	A	www.webclon.co.kr
180.131.2.12	A	webclon.co.kr
180.131.2.12	A	clonix.co.kr
180.131.2.13	A	narshasoft.com
180.131.2.13	A	myzec.com
180.131.2.13	A	comeonlink.com
180.131.2.14	A	kpdsoft.net
180.131.2.14	A	ulsanpilot.co.kr
180.131.2.14	A	www.ulsanpilot.co.kr
180.131.2.15	A	www.ibu.or.kr
180.131.2.17	A	ahatouch.com
180.131.2.17	A	www.ki75.com
180.131.2.17	A	www.lawfirm.co.kr
180.131.2.18	A	jeflex.co.kr
180.131.2.18	A	3dproducts.co.kr
180.131.2.18	A	okuicorp.com
180.131.2.22	A	www.eduwalks.com
180.131.2.23	A	inyenja.com
180.131.2.24	A	www.ki75.com
180.131.2.24	A	cielid.com
180.131.2.24	A	ki75.com
180.131.2.29	A	www.cnst.co.kr
180.131.2.30	A	www.webclon.co.kr
180.131.2.30	A	webclon.co.kr
180.131.2.30	A	clonix.net
180.131.2.32	A	www.ttaja.com
180.131.2.32	A	*.mooan.co.kr
180.131.2.32	A	ttaja.com
180.131.2.37	PTR	mail.enth.co.kr
180.131.2.37	PTR	mail.visionlaw.co.kr
180.131.2.37	PTR	mail.wiseroad.co.kr
180.131.2.40	A	koreaboxoffice.com
180.131.2.46	A	www.sebong.co.kr
180.131.2.46	A	soguri.pe.kr
180.131.2.46	A	soguri.org
180.131.2.48	A	hello-care.com
180.131.2.48	A	www.hello-care.com
180.131.2.53	A	byforlab.com
180.131.2.53	A	codeon.com
180.131.2.53	A	chaewool.com
180.131.2.62	A	airkorea.biz
180.131.2.62	A	www.airkorea.biz
180.131.2.71	A	spam.igm.or.kr
180.131.2.72	A+PTR	mail.igm.or.kr
180.131.2.73	A	negoschool.com
180.131.2.73	A	www.whatigm.com
180.131.2.73	A	whatigm.com
180.131.2.80	A+PTR	mail.rightbrain.co.kr
180.131.2.80	A	mail1.rightbrain.co.kr
180.131.2.80	A	webmail.rightbrain.co.kr
180.131.2.90	A+PTR	mail.ahainc.co.kr
180.131.2.132	PTR	mx.jakorea.org