Robtex

Up: 210.181.136.0/21
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Down left: 210.181.136.0/23
Down right: 210.181.138.0/23

IP	Type	Hostname
210.181.136.1	PTR	ns.gtec.ac.kr
210.181.136.2	A	ns.gtec.ac.kr
210.181.136.2	A	ns.kinst.ac.kr
210.181.136.4	A	mail.kinst.ac.kr
210.181.136.7	A+PTR	www.gtec.ac.kr
210.181.136.7	A	kinst.ac.kr
210.181.136.7	A	www.kinst.ac.kr
210.181.136.33	A	spam.gtec.ac.kr