AS1237 Korea Research Environment Open NETwork

The website screenshot for http://kreonet.net

Korea Research Environment Open NETwork

AS Number 1237
Website http://kreonet.net

Registered on: 1 Aug 2002 (23 years old)
Registered to: A9149F3E (apnic)

Network status: Active, Allocated under APNIC

Network type: Eyeball

Prefixes Originated: 199 IPv4, 1 IPv6

Upstreams

AS17579 - KISTI
AS4766 - Korea Telecom

Rankings

#7 for AS Cone in South Korea

#64 for Estimated Eyeballs in South Korea

#47 for Unique Domains in South Korea

#17 for Known Peers in South Korea

#19 for Originated IPv4 Space in South Korea

#7 for Originated IPv6 Space in South Korea

Tags:

	Prefix	Description
	134.75.0.0/16	KISTI
	134.75.20.0/24	KISTI
	134.75.52.0/23	KISTI
	134.75.250.0/24	KISTI
	147.47.120.0/21	Seoul National University
	147.47.124.0/24	Seoul National University
	147.47.125.0/24	Seoul National University
	150.183.0.0/16	KISTI
	150.183.11.0/24	KISTI
	202.30.40.0/22	KISTI
	202.30.60.0/22	KISTI
	202.31.182.0/24	Korea Educational Development Institute
	203.230.2.0/24	KISTI
	203.230.3.0/24	KISTI
	203.230.6.0/24	KISTI
	203.230.8.0/22	KISTI
	203.230.16.0/23	KISTI
	203.230.22.0/23	KISTI
	203.230.24.0/21	KISTI
	203.230.60.0/22	KISTI
	203.230.64.0/21	KISTI
	203.230.72.0/24	KISTI
	203.230.73.0/24	KISTI
	203.230.74.0/23	KISTI
	203.230.76.0/22	KISTI
	203.230.108.0/22	KISTI
	203.230.116.0/23	KISTI
	203.230.116.0/24	KISTI
	203.230.120.0/24	KISTI
	203.230.126.0/24	KISTI
	203.233.155.0/24	KISTI
	203.233.156.0/24	KISTI
	203.241.40.0/21	KISTI
	203.241.116.0/23	KISTI
	203.241.118.0/24	KISTI
	203.241.120.0/22	KISTI
	203.241.164.0/24	KISTI
	203.241.165.0/24	KISTI
	203.241.170.0/23	Asia Pacific Network Information Centre
	203.241.172.0/23	KISTI
	203.241.174.0/24	KISTI
	203.247.64.0/24	KISTI
	203.247.69.0/24	KISTI
	203.247.73.0/24	KISTI
	203.247.160.0/22	KISTI
	203.247.164.0/23	KISTI
	203.247.167.0/24	KISTI
	203.247.170.0/23	KISTI
	203.247.172.0/22	KISTI
	203.247.176.0/22	KISTI
	203.247.180.0/23	KISTI
	203.247.184.0/24	KISTI
	203.247.185.0/24	KISTI
	203.247.187.0/24	KISTI
	203.247.188.0/24	KISTI
	203.247.190.0/23	KISTI
	203.247.192.0/20	KISTI
	203.247.216.0/22	KISTI
	203.250.0.0/19	KISTI
	203.250.96.0/21	KISTI
	203.250.112.0/21	KISTI
	203.250.155.0/24	KISTI
	203.250.156.0/22	KISTI
	203.250.156.0/24	KISTI
	203.250.160.0/21	KISTI
	203.250.172.0/22	KISTI
	203.250.176.0/21	KISTI
	203.250.182.0/24	KISTI
	203.250.183.0/24	KISTI
	203.250.192.0/18	KISTI
	203.253.96.0/20	KISTI
	203.253.135.0/24	KISTI
	203.253.136.0/22	KISTI
	203.253.140.0/22	KISTI
	203.253.224.0/23	KISTI
	203.253.230.0/23	KISTI
	203.253.234.0/23	Asia Pacific Network Information Centre
	203.253.236.0/24	KISTI
	203.253.238.0/24	KISTI
	203.254.40.0/24	KISTI
	203.254.168.0/23	KISTI
	203.254.176.0/20	KISTI
	203.254.179.0/24	KISTI
	203.254.180.0/24	KISTI
	203.254.181.0/24	KISTI
	203.254.185.0/24	KISTI
	203.254.186.0/24	KISTI
	210.98.5.0/24	KISTI
	210.98.6.0/23	KISTI
	210.98.8.0/22	KISTI
	210.98.12.0/24	KISTI
	210.98.14.0/23	KISTI
	210.98.24.0/23	KISTI
	210.98.26.0/24	KISTI
	210.98.28.0/22	KISTI
	210.98.44.0/24	KISTI
	210.98.47.0/24	KISTI
	210.98.48.0/21	KISTI
	210.98.48.0/24	KISTI
	210.98.52.0/24	KISTI
	210.98.54.0/24	KISTI
	210.98.56.0/24	KISTI
	210.98.59.0/24	KISTI
	210.98.60.0/22	KISTI
	210.107.144.0/24	KISTI
	210.107.146.0/24	KISTI
	210.107.152.0/21	KISTI
	210.107.160.0/20	KISTI
	210.107.248.0/22	KISTI
	210.107.252.0/23	KISTI
	210.107.254.0/24	KISTI
	210.110.128.0/21	KISTI
	210.110.143.0/24	KISTI
	210.110.144.0/20	KISTI
	210.110.182.0/24	KISTI
	210.110.183.0/24	KISTI
	210.110.184.0/24	KISTI
	210.110.189.0/24	KISTI
	210.110.190.0/24	KISTI
	210.110.191.0/24	KISTI
	210.110.192.0/22	KISTI
	210.110.196.0/23	KISTI
	210.110.198.0/24	KISTI
	210.110.205.0/24	KISTI
	210.110.206.0/23	KISTI
	210.110.224.0/21	KISTI
	210.110.232.0/24	KISTI
	210.110.235.0/24	KISTI
	210.110.236.0/22	KISTI
	210.110.254.0/23	KISTI
	210.114.104.0/23	KISTI
	210.114.108.0/24	KISTI
	210.117.192.0/24	KISTI
	210.117.193.0/24	KISTI
	210.117.194.0/24	KISTI
	210.117.198.0/24	KISTI
	210.117.208.0/24	KISTI
	210.117.209.0/24	KISTI
	210.117.210.0/23	KISTI
	210.117.211.0/24	KISTI
	210.117.212.0/24	KISTI
	210.117.214.0/23	KISTI
	210.117.216.0/24	KISTI
	210.117.217.0/24	KISTI
	210.117.218.0/24	KISTI
	210.117.219.0/24	KISTI
	210.117.224.0/24	KISTI
	210.117.225.0/24	KISTI
	210.117.226.0/23	KISTI
	210.117.228.0/23	KISTI
	210.117.230.0/24	KISTI
	210.117.236.0/24	KISTI
	210.117.240.0/21	KISTI
	210.117.248.0/22	KISTI
	210.117.252.0/23	KISTI
	210.119.20.0/23	KISTI
	210.119.36.0/23	KISTI
	210.119.37.0/24	KISTI
	210.119.40.0/21	KISTI
	210.119.48.0/20	KISTI
	210.119.64.0/19	KISTI
	210.119.71.0/24	KISTI
	210.119.72.0/24	KISTI
	210.119.96.0/22	KISTI
	210.119.100.0/23	KISTI
	210.119.114.0/23	KISTI
	210.119.122.0/23	KISTI
	210.119.124.0/23	KISTI
	210.119.126.0/24	KISTI
	210.125.0.0/24	KISTI
	210.125.32.0/20	KISTI
	210.125.56.0/21	KISTI
	210.125.64.0/21	KISTI
	210.125.69.0/24	KISTI
	210.125.84.0/23	KISTI
	210.218.192.0/24	KISTI
	210.218.201.0/24	KISTI
	210.218.202.0/23	KISTI
	210.218.203.0/24	KISTI
	210.218.204.0/23	KISTI
	210.218.206.0/23	KISTI
	210.218.208.0/21	KISTI
	210.218.216.0/22	KISTI
	210.219.32.0/24	KISTI
	210.219.34.0/23	KISTI
	210.219.36.0/22	KISTI
	210.219.40.0/23	KISTI
	210.219.42.0/24	KISTI
	210.219.45.0/24	KISTI
	210.219.47.0/24	KISTI
	210.219.48.0/22	KISTI
	210.219.52.0/24	KISTI
	210.219.55.0/24	KISTI
	210.219.56.0/21	KISTI
	210.219.62.0/24	KISTI
	210.219.62.0/23	KISTI
	211.213.190.0/24	SK Broadband Co Ltd
	218.233.7.0/24	SK Broadband Co Ltd
	218.234.156.0/24	SK Broadband Co Ltd
	2001:320::/32	KISTI

Peers: 48

Upstreams: 2

Downstreams: 40 (Cone: 42)

Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS17579	KISTI	✔	✔
	AS4766	Korea Telecom	✔	✔

Peers

ASN	Description	IPv4	IPv6
AS17579	KISTI	✔	✔
AS4766	Korea Telecom	✔	✔
AS9568	KOREA INSTITUTE OF MACHINERY MATERIALS (KIMM)	✔	✘
AS18297	K-JIST	✔	✘
AS7564	Korea Atomic Energy Research Institute	✔	✘
AS9317	INHA UNIVERSITY	✔	✘
AS10052	Kyungpook National University	✔	✘
AS131795	KOREA INSTITUTE OF ENERGY RESEARCH	✔	✘
AS9949	Hoseo University	✔	✘
AS9488	Seoul National University	✔	✘
AS24026	KOREA INSTITUTE OF FUSION ENERGY	✔	✘
AS2385	Korea Research Institute of Bioscience Biotechnology	✔	✘
AS9489	Korea Aerospace Research Institute	✔	✘
AS45379	Ulsan National Institute of Science and Technology	✔	✘
AS17595	Korea Institute of Nuclear Safety	✔	✘
AS9637	Korea Basic Science Institute	✔	✘
AS17856	Konyang University	✔	✘
AS18026	JEJU NATIONAL UNIVERSITY	✔	✘
AS18034	Gangneung-Wonju National University	✔	✘
AS55616	Daegu Gyeongbuk Institute of Science and Technology	✔	✘
AS9275	Korea Astronomy Observatory	✔	✘
AS38426	KOREA RURAL ECONOMIC INSTITUTE	✔	✘
AS1781	Korea Advanced Institute of Science and Technology	✔	✘
AS9695	KISTI	✔	✘
AS9686	SungKyunKwan University (SKKU)	✔	✘
AS23596	Korea Internet Security Agency	✔	✔
AS10070	KRISS Sub DAEJON	✔	✘
AS18336	Korea Institute of Oriental Medicine	✔	✘
AS152212	Korea Institute of Science and Technology Evaluation ...	✔	✘
AS1704	Korea Advanced Institute of Science and Technology	✔	✘
AS152671	SPARCS	✔	✔
AS3784	Pohang University of Science and Technology	✔	✘
AS17866	Korea Institute of Science and Technology	✔	✘
AS10162	Seoul National University Hospital	✔	✘
AS45984	Dongnam Institute of Radiologycal Sciences	✔	✘
AS10063	Korea Meteorological Administration	✔	✘
AS131869	University of Science and Technology	✔	✘
AS10187	Korea Information Society Developement Institute	✔	✘
AS45963	KIRAMS (Korea Institute of Radiological Medical Sciences)	✔	✘
AS38696	Korea Brain Research Institute	✔	✘
AS18298	Chungnam National University	✔	✘
AS9318	SK Broadband Co Ltd	✔	✘
AS9957	KINX	✔	✘
AS9270	National Infomation Society Agency	✔	✔
AS55589	Korea Institute of Industrial Technology	✔	✘
AS7560	Jeonbuk National University	✔	✘
AS131830	Institute for Basic Science	✔	✘
AS23557	Elice inc.	✔	✘

Downstreams

ASN	Description	IPv4	IPv6
AS9568	KOREA INSTITUTE OF MACHINERY MATERIALS (KIMM)	✔	✘
AS18297	K-JIST	✔	✘
AS7564	Korea Atomic Energy Research Institute	✔	✘
AS131795	KOREA INSTITUTE OF ENERGY RESEARCH	✔	✘
AS9488	Seoul National University	✔	✘
AS24026	KOREA INSTITUTE OF FUSION ENERGY	✔	✘
AS2385	Korea Research Institute of Bioscience Biotechnology	✔	✘
AS9489	Korea Aerospace Research Institute	✔	✘
AS9317	INHA UNIVERSITY	✔	✘
AS9695	KISTI	✔	✘
AS17856	Konyang University	✔	✘
AS9637	Korea Basic Science Institute	✔	✘
AS17595	Korea Institute of Nuclear Safety	✔	✘
AS10052	Kyungpook National University	✔	✘
AS45379	Ulsan National Institute of Science and Technology	✔	✘
AS9949	Hoseo University	✔	✘
AS9275	Korea Astronomy Observatory	✔	✘
AS38426	KOREA RURAL ECONOMIC INSTITUTE	✔	✘
AS23596	Korea Internet Security Agency	✔	✔
AS152671	SPARCS	✔	✔
AS17579	KISTI	✔	✘
AS55616	Daegu Gyeongbuk Institute of Science and Technology	✔	✘
AS18026	JEJU NATIONAL UNIVERSITY	✔	✘
AS1704	Korea Advanced Institute of Science and Technology	✔	✘
AS18336	Korea Institute of Oriental Medicine	✔	✘
AS10070	KRISS Sub DAEJON	✔	✘
AS152212	Korea Institute of Science and Technology Evaluation ...	✔	✘
AS18034	Gangneung-Wonju National University	✔	✘
AS10187	Korea Information Society Developement Institute	✔	✘
AS1781	Korea Advanced Institute of Science and Technology	✔	✘
AS17866	Korea Institute of Science and Technology	✔	✘
AS10063	Korea Meteorological Administration	✔	✘
AS10162	Seoul National University Hospital	✔	✘
AS45984	Dongnam Institute of Radiologycal Sciences	✔	✘
AS9686	SungKyunKwan University (SKKU)	✔	✘
AS131869	University of Science and Technology	✔	✘
AS3784	Pohang University of Science and Technology	✔	✘
AS38696	Korea Brain Research Institute	✔	✘
AS45963	KIRAMS (Korea Institute of Radiological Medical Sciences)	✔	✘
AS18298	Chungnam National University	✔	✘

aut-num:        AS1237
as-name:        KREONET-AS-KR
descr:          KISTI
country:        KR
admin-c:        AM1940-AP
tech-c:         AM1940-AP
import:         from AS3608
                action pref=10;
                accept ANY
import:         from AS3786
                action pref=100;
                accept ANY
import:         from AS7623
                action pref=100;
                accept ANY
import:         from AS9848
                action pref=100;
                accept ANY
export:         to AS3608
                announce AS1237
export:         to AS3786
                announce AS1237
export:         to AS7623
                announce AS1237
export:         to AS9848
                announce AS1237
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2020-09-11T01:58:02Z
source:         APNIC

Last Update: 2026-06-08T03:22:25Z UTC

Member of the following AS-SETs

-	Member	ASN Count
APNIC	as-sggs	18737
RADB	as-nca	64
NTTCOM	as-hanaro	441
RADB	as-kornetbgp	1274
RADB	as-hurricane	24939
ARIN	as-globeinternet-clients	89752
ARIN	as-xo-b	60328
RIPE	as20965:as-from-tein-to-geant	656
RADB	as-shinbiro	369
RADB	as17579:as-kreonet2	65
RIPE	as-transroute-spec	19620
RADB	as-kornetre	96
ARIN	as293:as-from-singaren-to-esnet	4548
RADB	as-kinx-transit	199
RADB	as1237:as-kreonet	65
RIPE	as-globeinternet-clients	89752
RADB	as-skbroadband	981
LEVEL3	as-level3-origins-na	0
RADB	as-sejong	383

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Upstreams

Rankings

Tags:

Network Policy

Prefixes in selected policy

Upstreams

Peers

Downstreams

Member of the following AS-SETs

Internet Exchange Points