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	Prefix	Description
	180.222.220.0/24	Korea Internet Security Agency
	192.5.90.0/24	Korea Internet Security Agency
	192.132.247.0/24	Korea Internet Security Agency
	192.203.140.0/24	Korea Internet Security Agency
	218.37.128.0/24	-
	218.37.129.0/24	-

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS3786	LG DACOM Corporation	✔	✘
	AS9457	DREAMLINE CO.	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS3786	LG DACOM Corporation	✔	✘
	AS9457	DREAMLINE CO.	✔	✘

aut-num:        AS9640
as-name:        KRCERT-AS-KR
descr:          Korea Internet Security Agency
country:        KR
admin-c:        AM802-AP
tech-c:         AM802-AP
import:         from AS4766
                action pref=1;
                accept ANY
import:         from AS9318
                action pref=1;
                accept ANY
export:         to AS9318
                announce AS9640
export:         to AS4766
                announce AS9640
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2017-03-23T05:14:51Z
source:         APNIC

Last Update: 2026-02-18T03:22:26Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
ARIN	as-xo-b	58219
RADB	as-skbroadband	971
RADB	as-kornetbgp	1266
RIPE	as-globeinternet-clients	88234
RADB	as-dacom	711
ARIN	as-globeinternet-clients	88234
RADB	as-dreamline	3
ARIN	as1239:as-customers	4238
NTTCOM	as-hanaro	441
LEVEL3	as-level3-origins-na	0