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	Prefix	Description
	1.18.123.0/24	Korea Internet Security Agency
	1.18.125.0/24	Korea Internet Security Agency
	1.18.126.0/24	Korea Internet Security Agency
	203.83.159.0/24	Korea Internet Security Agency
	2001:dcc:4::/48	Korea Internet Security Agency
	2001:dcc:401::/48	Korea Internet Security Agency
	2001:dcc:403::/48	Korea Internet Security Agency

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS9318	SK Broadband Co Ltd	✔	✔
	AS9286	KINX	✔	✔
	AS4766	Korea Telecom	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS9318	SK Broadband Co Ltd	✔	✔
	AS9286	KINX	✔	✔
	AS4766	Korea Telecom	✔	✘
	AS137409	GSL Networks Pty LTD	✔	✘
	AS9957	KINX	✔	✘
	AS20473	The Constant Company, LLC	✔	✘

aut-num:        AS23599
as-name:        DDNSKR-KR
descr:          Korea Internet Security Agency
country:        KR
admin-c:        AM2071-AP
tech-c:         AM2071-AP
import:         from AS9286
                action pref=10;
                accept ANY
import:         from AS9457
                action pref=10;
                accept ANY
import:         from AS4766
                action pref=10;
                accept ANY
import:         from AS1280
                action pref=10;
                accept ANY
export:         to AS9286
                announce AS23599
export:         to AS9457
                announce AS23599
export:         to AS4766
                announce AS23599
export:         to AS1280
                announce AS23599
default:        to AS4766
                action pref=10;
                networks ANY
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2018-05-28T06:31:59Z
source:         APNIC

Last Update: 2025-12-29T03:22:31Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
ARIN	as-xo-b	58190
NTTCOM	as-hanaro	441
APNIC	as-krdns	6
RADB	as-dacom	708
RADB	as-dreamline	3
RIPE	as-globeinternet-clients	87712
RADB	as-hurricanev6	19808
ARIN	as1239:as-customers	4238
APNIC	as58453:as-asiatest	16495
RADB	as3491:as-customers-ap	69003
RADB	as-hurricane	24728
RADB	as58453:as-asiaascust	21120
RADB	as-kornetbgp	1264
RADB	as-anc-customer-proxy-register	2403
RADB	as-kinx-transit	196
ARIN	as-globeinternet-clients	87712
RADB	as-skbroadband	966
APNIC	as58453:as-asiaascust	21120