Autonomous System details

AS1237

KISTI · kreonet.net

South Korea

BitTorrent

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AS1237 – KISTI

Field	Value
Country	South Korea
Website	kreonet.net
Hosted domains	227
IPv4 addresses	295,680
IPv6 addresses	79,228,162,514,264,337,593,543,950,336
ASN type	Education
Registry	apnic
Allocated	23 years ago on Aug 01, 2002
Updated	5 years ago on Sep 11, 2020

Netblock	Company	Num of IPs
134.75.0.0/16	KISTI	65,536
150.183.0.0/16	KISTI	65,536
203.250.192.0/18	KISTI	16,384
203.250.0.0/19	KISTI	8,192
210.119.64.0/19	Tongmyong University	8,192
203.247.192.0/20	Tongmyong University	4,096
203.253.96.0/20	KISTI	4,096
203.254.176.0/20	KISTI	4,096
210.107.160.0/20	KISTI	4,096
210.110.144.0/20	Tongmyong University	4,096
210.119.48.0/20	Korea Institute of Science and Technology Information	4,096
210.125.32.0/20	KISTI	4,096
147.47.120.0/21	Seoul National University	2,048
203.230.24.0/21	Korea Institute of Science and Technology Information	2,048
203.230.64.0/21	KISTI	2,048
203.241.40.0/21	KISTI	2,048
203.250.96.0/21	Korea Environment Institute	2,048
203.250.112.0/21	Korea Institute of Science and Technology Information	2,048
203.250.160.0/21	KISTI	2,048
203.250.176.0/21	Korea Polar Research Institute	2,048
210.98.48.0/21	Korea Electrotechnology Research Institute	2,048
210.107.152.0/21	KISTI	2,048
210.110.128.0/21	National Nanofab Center	2,048
210.110.224.0/21	Korea Institute of Science and Technology Information	2,048
210.117.240.0/21	National Institute of Environmental Research	2,048
210.119.40.0/21	Korea Institute of Science and Technology Information	2,048
210.125.56.0/21	Korea Institute of Science and Technology Information	2,048
210.125.64.0/21	Advanced Institute of Convergence Technology	2,048
210.218.208.0/21	The Korean Federation of Science and Technology Societies	2,048
210.219.56.0/21	Korea Research Institute Of Ships and Ocean Engineering	2,048
202.30.40.0/22	KISTI	1,024
202.30.60.0/22	KISTI	1,024
203.230.8.0/22	Korea Institute of Science and Technology Information	1,024
203.230.60.0/22	KISTI	1,024
203.230.76.0/22	KISTI	1,024
203.230.108.0/22	Pohang University of Science & Technology	1,024
203.241.120.0/22	KISTI	1,024
203.247.160.0/22	Tongmyong University	1,024
203.247.172.0/22	Korea Institute of Geoscience and Mineral Resources	1,024
203.247.176.0/22	Korea Institute of Geoscience and Mineral Resources	1,024
203.247.216.0/22	KISTI	1,024
203.250.156.0/22	Korea Astronomy and Space Science Institute	1,024
203.250.172.0/22	KISTI	1,024
203.253.136.0/22	KISTI	1,024
203.253.140.0/22	KISTI	1,024
210.98.8.0/22	Korea Institute of Geoscience and Mineral Resources	1,024
210.98.28.0/22	Korea Institute for Advanced Study	1,024
210.98.60.0/22	Kumho Petrochemical	1,024
210.107.248.0/22	KISTI	1,024
210.110.192.0/22	Tongmyong University	1,024
210.110.236.0/22	KISTI	1,024
210.117.248.0/22	Korea Centers for Disease Control and Prevention	1,024
210.119.96.0/22	Korea Science Academy of KAIST	1,024
210.218.216.0/22	Korea Institute of Science and Technology Information	1,024
210.219.36.0/22	Korea Institute of materials Science	1,024
210.219.48.0/22	KISTI	1,024
134.75.52.0/23	KISTI	512
203.230.16.0/23	Korea Institute of Science and Technology Information	512
203.230.22.0/23	Incheon National University	512
203.230.74.0/23	Tongmyong University	512
203.230.116.0/23	KISTI	512
203.241.116.0/23	KISTI	512
203.241.170.0/23	KISTI	512
203.241.172.0/23	KISTI	512
203.247.164.0/23	KISTI	512
203.247.170.0/23	Jeju Technopark	512
203.247.180.0/23	Korea Institute of Geoscience and Mineral Resources	512
203.247.190.0/23	Tongmyong University	512
203.253.224.0/23	KISTI	512
203.253.230.0/23	KISTI	512
203.253.234.0/23	KISTI	512
203.254.168.0/23	KISTI	512
210.98.6.0/23	Korea Institute of materials Science	512
210.98.14.0/23	Korea Institute of Geoscience and Mineral Resources	512
210.98.24.0/23	Korea Institute of Energy Research	512
210.107.252.0/23	KISTI	512
210.110.196.0/23	Korea Institute of Science and Technology Information	512
210.110.206.0/23	Korea Institute of Science and Technology Information	512
210.110.254.0/23	Korea Institute of Science and Technology Information	512
210.117.210.0/23	SNU Hospital	512
210.117.214.0/23	KISTI	512
210.117.226.0/23	Korean Women’s Development Institute	512
210.117.228.0/23	Korea Aerospace Research Institute	512
210.117.252.0/23	ational Disaster Management Research Institute	512
210.119.20.0/23	Tongmyong University	512
210.119.36.0/23	Korea Institute of Science and Technology Information	512
210.119.100.0/23	Korea Science Academy of KAIST	512
210.119.114.0/23	KISTI	512
210.119.122.0/23	KISTI	512
210.119.124.0/23	KISTI	512
210.125.84.0/23	Gwangju Institute of Science and Technology	512
210.218.202.0/23	The Korean Federation of Science and Technology Societies	512
210.218.204.0/23	Korean Educational Development Institute	512
210.218.206.0/23	KISTI	512
210.219.34.0/23	Institut Pasteur Korea	512
210.219.40.0/23	Korea Institute of materials Science	512
210.219.62.0/23	Institut Pasteur Korea	512
134.75.20.0/24	KISTI	256
134.75.250.0/24	KISTI	256
147.47.124.0/24	Seoul National University	256
147.47.125.0/24	Seoul National University	256
150.183.11.0/24	KISTI	256
202.30.40.0/24	KISTI	256
202.31.182.0/24	Korea Educational Development Institute	256
203.230.2.0/24	SungKyunKwan University (SKKU)	256
203.230.3.0/24	SungKyunKwan University (SKKU)	256
203.230.6.0/24	KISTI	256
203.230.72.0/24	KISTI	256
203.230.73.0/24	KISTI	256
203.230.116.0/24	KISTI	256
203.230.120.0/24	KISTI	256
203.230.126.0/24	KISTI	256
203.233.155.0/24	KISTI	256
203.233.156.0/24	KISTI	256
203.241.118.0/24	KISTI	256
203.241.164.0/24	KISTI	256
203.241.165.0/24	KISTI	256
203.241.174.0/24	KISTI	256
203.247.64.0/24	KISTI	256
203.247.69.0/24	KISTI	256
203.247.73.0/24	KISTI	256
203.247.167.0/24	KISTI	256
203.247.184.0/24	Korea Electrotechnology Research Institute	256
203.247.185.0/24	Korea Electrotechnology Research Institute	256
203.247.187.0/24	Korea Electrotechnology Research Institute	256
203.247.188.0/24	KISTI	256
203.250.155.0/24	Korea Astronomy and Space Science Institute	256
203.250.156.0/24	Korea Astronomy and Space Science Institute	256
203.250.182.0/24	KRISO	256
203.250.183.0/24	KRISO	256
203.253.135.0/24	KISTI	256
203.253.236.0/24	KISTI	256
203.253.238.0/24	KISTI	256
203.254.40.0/24	KISTI	256
203.254.179.0/24	National Research Council for	256
203.254.180.0/24	Science and Technology Policy Institute	256
203.254.181.0/24	Korea Institute for International Economic Policy	256
203.254.185.0/24	Korea Labor Institute	256
203.254.186.0/24	Korea Institute for Health and Social Affairs	256
210.98.5.0/24	The Korean Federation of Science and Technology Societies	256
210.98.12.0/24	Korea Institute of Geoscience and Mineral Resources	256
210.98.26.0/24	The Korean Federation of Science and Technology Societies	256
210.98.44.0/24	Korea Institute for Advanced Study	256
210.98.47.0/24	Korea Electrotechnology Research Institute	256
210.98.48.0/24	Korea Electrotechnology Research Institute	256
210.98.52.0/24	KOREA INSTITUTE OF OCEAN SCIENCE TECHNOLOGY	256
210.98.54.0/24	KISTI	256
210.98.56.0/24	KISTI	256
210.98.59.0/24	Korea Institute of Science and Technology Information	256
210.107.144.0/24	KISTI	256
210.107.146.0/24	KISTI	256
210.107.254.0/24	KISTI	256
210.110.143.0/24	KISTI	256
210.110.182.0/24	KOREA INSTITUTE OF OCEAN SCIENCE TECHNOLOGY	256
210.110.183.0/24	KOREA INSTITUTE OF OCEAN SCIENCE TECHNOLOGY	256
210.110.184.0/24	KOREA INSTITUTE OF OCEAN SCIENCE TECHNOLOGY	256
210.110.189.0/24	Korea Hydrographic and Oceanographic Agency	256
210.110.190.0/24	National Research Council of Science and Technolog	256
210.110.191.0/24	National Research Council of Science and Technolog	256
210.110.198.0/24	Kangbuk Samsung Hospital	256
210.110.205.0/24	Korea Institute of Science and Technology Information	256
210.110.232.0/24	Space Geodetic Observation Center	256
210.110.235.0/24	Architecture & Urban Research Institute	256
210.114.108.0/24	KISTI	256
210.117.192.0/24	National Center for Meteorological Supercomputer	256
210.117.193.0/24	KISTI	256
210.117.194.0/24	KISTI	256
210.117.198.0/24	National Geographic Information	256
210.117.208.0/24	Yonsei University	256
210.117.209.0/24	The University of Seoul	256
210.117.211.0/24	SNU Hospital	256
210.117.212.0/24	Konkuk University	256
210.117.216.0/24	Soongsil University	256
210.117.217.0/24	Ajou University	256
210.117.218.0/24	KISTI	256
210.117.219.0/24	KISTI	256
210.117.224.0/24	Korea Institute for National Unification	256
210.117.225.0/24	Transport OPeration and Information Service	256
210.117.230.0/24	KISTI	256
210.117.236.0/24	KISTI	256
210.119.37.0/24	Korea Institute of Science and Technology Information	256
210.119.71.0/24	Gwangju National Science Museum	256
210.119.72.0/24	Gwangju National Science Museum	256
210.119.126.0/24	Hanyang University	256
210.125.0.0/24	KISTI	256
210.125.69.0/24	Gwangju Institute of Science and Technology	256
210.218.192.0/24	KISTI	256
210.218.201.0/24	The Korean Federation of Science and Technology Societies	256
210.218.203.0/24	Korean Educational Development Institute	256
210.219.32.0/24	National Science Museum	256
210.219.42.0/24	Korea Electrotechnology Research Institute	256
210.219.45.0/24	Korea Institute of Science and Technology Information	256
210.219.47.0/24	Materials Center	256
210.219.52.0/24	The University of Seoul	256
210.219.55.0/24	Korea Institute of Science Technology Evaluation and Planning	256
210.219.62.0/24	Institut Pasteur Korea	256
211.213.190.0/24	Korea Advanced Institute of Science and Technology	256
218.233.7.0/24	Korea Advanced Institute of Science and Technology	256
218.234.156.0/24	Korea Advanced Institute of Science and Technology	256

Netblock	Company
2001:320::/32	KISTI

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WHOIS Details

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                                                ASHandle:       AS1237
                                                OrgID:          AS1237
                                                ASName:         AS1237
                                                ASNumber:       AS1237
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 227 domain names hosted across 169 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
203.250.218.56	███████	8
203.250.218.54	████████	7
203.250.218.77	██████████	6
203.250.215.81	██████████	5
210.110.184.183	██████████	5
203.254.181.150	██████████	5
203.250.198.114	███████	5
210.110.133.5	██████████	5
203.247.192.127	█████████	3
203.250.180.211	██████████	3

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Peers

There are 44 peers for this ASN.

Peers	Name
AS10052	Kyungpook National University
AS10063	Korea Meteorological Administration
AS10070	KRISS SubDAEJONnetworks connected to backbone
AS10162	SNUH
AS10187	Korea Information Society Developement Institute
AS131795	KOREA INSTITUTE OF ENERGY RESEARCH
AS131830	Institute for Basic Science
AS131869	UST
AS152212	Korea Institute of Science and Technology Evaluation and Planning
AS152671	SPARCS
AS1704	Korea Advanced Institute of Science and Technology
AS17579	KISTI
AS17595	Korea Institute of Nuclear Safety
AS1781	Korea Advanced Institute of Science and Technology
AS17856	Konyang University
AS17866	Korea Institute of Science and Technology
AS18026	JEJU NATIONAL UNIVERSITY
AS18034	Gangneung-Wonju National University
AS18297	K-JIST
AS18298	Chungnam National University
AS18336	Korea Institute of Oriental Medicine
AS23596	Korea Internet Security Agency
AS2385	KRIBB(Korea Research Institute of Bioscience Biotechnology)
AS24026	KOREA INSTITUTE OF FUSION ENERGY
AS3784	Pohang University of Science and Technology
AS38426	KOREA RURAL ECONOMIC INSTITUTE
AS38696	Korea Brain Research Institute
AS45379	Ulsan National Institute of Science and Technology
AS45963	KIRAMS (Korea Institute of Radiological Medical Sciences)
AS4766	Korea Telecom
AS55589	Korea Institute of Industrial Technology
AS55616	DGIST
AS7560	Jeonbuk National University
AS7564	Korea Atomic Energy Research Institute
AS9270	National Infomation Society Agency
AS9275	Korea Astronomy Observatory
AS9317	INHA UNIVERSITY
AS9488	Seoul National University
AS9489	Korea Aerospace Research Institute
AS9568	KOREA INSTITUTE OF MACHINERY MATERIALS (KIMM)
AS9637	Korea Basic Science Institute
AS9686	SungKyunKwan University (SKKU)
AS9695	KISTI
AS9949	Hoseo University

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ASN API & Database

Upstreams

There are 2 upstreams for this ASN.

upstreams	Name
AS17579	KISTI
AS4766	Korea Telecom

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ASN API & Database

Downstreams

There are 40 downstreams for this ASN.

Downstreams	Name
AS10052	Kyungpook National University
AS10063	Korea Meteorological Administration
AS10070	KRISS SubDAEJONnetworks connected to backbone
AS10162	SNUH
AS10187	Korea Information Society Developement Institute
AS131795	KOREA INSTITUTE OF ENERGY RESEARCH
AS131830	Institute for Basic Science
AS131869	UST
AS152212	Korea Institute of Science and Technology Evaluation and Planning
AS152671	SPARCS
AS1704	Korea Advanced Institute of Science and Technology
AS17579	KISTI
AS17595	Korea Institute of Nuclear Safety
AS1781	Korea Advanced Institute of Science and Technology
AS17856	Konyang University
AS17866	Korea Institute of Science and Technology
AS18026	JEJU NATIONAL UNIVERSITY
AS18034	Gangneung-Wonju National University
AS18297	K-JIST
AS18298	Chungnam National University
AS18336	Korea Institute of Oriental Medicine
AS23596	Korea Internet Security Agency
AS2385	KRIBB(Korea Research Institute of Bioscience Biotechnology)
AS24026	KOREA INSTITUTE OF FUSION ENERGY
AS3784	Pohang University of Science and Technology
AS38426	KOREA RURAL ECONOMIC INSTITUTE
AS38696	Korea Brain Research Institute
AS45379	Ulsan National Institute of Science and Technology
AS45963	KIRAMS (Korea Institute of Radiological Medical Sciences)
AS55616	DGIST
AS7564	Korea Atomic Energy Research Institute
AS9275	Korea Astronomy Observatory
AS9317	INHA UNIVERSITY
AS9488	Seoul National University
AS9489	Korea Aerospace Research Institute
AS9568	KOREA INSTITUTE OF MACHINERY MATERIALS (KIMM)
AS9637	Korea Basic Science Institute
AS9686	SungKyunKwan University (SKKU)
AS9695	KISTI
AS9949	Hoseo University

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ASN API & Database

Pingable IPs

287 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
203.250.237.121	AS1237 KISTI	`24.15ms` from Seoul, KR
203.254.185.62	AS1237 KISTI	`3.37ms` from Seoul, KR
203.247.204.96	AS1237 KISTI	`2.02ms` from Seoul, KR
210.107.154.9	AS1237 KISTI	`3.14ms` from Seoul, KR
203.241.173.77	AS1237 KISTI	`0.96ms` from Seoul, KR
210.119.65.1	AS1237 KISTI	`2.49ms` from Seoul, KR
210.117.228.97	AS1237 KISTI	`3.05ms` from Seoul, KR
2001:320:2000:131::2	AS1237 KISTI	`49.62ms` from Hong Kong, HK
203.247.206.60	AS1237 KISTI	`1.98ms` from Seoul, KR
210.119.79.117	AS1237 KISTI	`7.69ms` from Seoul, KR
203.253.137.161	AS1237 KISTI	`3.29ms` from Seoul, KR
203.247.195.55	AS1237 KISTI	`7.69ms` from Seoul, KR
134.75.87.28	AS1237 KISTI	`2.93ms` from Seoul, KR
134.75.115.37	AS1237 KISTI	`2.90ms` from Seoul, KR
210.117.198.250	AS1237 KISTI	`1.62ms` from Seoul, KR
210.219.47.16	AS1237 KISTI	`6.21ms` from Seoul, KR
203.250.218.74	AS1237 KISTI	`23.21ms` from Seoul, KR
210.117.242.126	AS1237 KISTI	`2.38ms` from Seoul, KR
134.75.144.1	AS1237 KISTI	`3.99ms` from Seoul, KR
203.230.109.1	AS1237 KISTI	`6.08ms` from Seoul, KR
134.75.142.2	AS1237 KISTI	`56.69ms` from Taos, US
210.117.252.33	AS1237 KISTI	`7.92ms` from Seoul, KR
210.119.43.19	AS1237 KISTI	`0.72ms` from Seoul, KR
210.107.254.10	AS1237 KISTI	`3.77ms` from Seoul, KR
134.75.143.35	AS1237 KISTI	`157.50ms` from Seoul, KR

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
86.84.100.37	AS1136 KPN B.V.	`1.74ms` from Amsterdam, NL
84.193.143.37	AS6848 Telenet BV	`6.80ms` from Brussels, BE
177.101.97.37	AS28343 UNIFIQUE TELECOMUNICACOES S/A	`5.12ms` from Curitiba, BR
80.132.51.149	AS3320 Deutsche Telekom AG	`4.55ms` from Duesseldorf, DE
47.238.173.229	AS45102 Alibaba (US) Technology Co., Ltd.	`0.95ms` from Hong Kong, HK
79.112.82.149	AS57269 DIGI SPAIN TELECOM S.L.	`0.92ms` from Madrid, ES
144.24.192.117	AS31898 Oracle Corporation	`0.15ms` from Marseille, FR
95.237.170.165	AS3269 Telecom Italia S.p.A.	`3.65ms` from Milan, IT
167.58.97.245	AS6057 Administracion Nacional de Telecomunicaciones	`1.83ms` from Montevideo, UY
122.192.70.53	AS4837 CHINA UNICOM China169 Backbone	`3.99ms` from Nanjing, CN
193.213.75.181	AS2119 Telenor Norge AS	`1.79ms` from Oslo, NO
3.234.250.165	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
202.150.90.165	AS131111 PT Mora Telematika Indonesia	`1.19ms` from Singapore, SG
178.34.33.117	AS12389 PJSC Rostelecom	`14.35ms` from Tbilisi, GE
133.11.2.101	AS2501 The University of Tokyo	`2.01ms` from Tokyo, JP
113.142.37.245	AS4835 China Telecom (Group)	`3.65ms` from Xi'an, CN
125.41.243.53	AS4837 CHINA UNICOM China169 Backbone	`1.31ms` from Zhengzhou, CN
41.108.29.69	AS36947 Telecom Algeria	`12.60ms` from Algiers, DZ
50.104.18.85	AS5650 Frontier Communications of America, Inc.	`12.05ms` from Chicago, US
67.20.27.133	AS11976 Fidelity Communication International Inc.	`8.51ms` from Dallas, US
146.88.119.69	AS33070 Rackspace Hosting	`0.83ms` from Dallas, US
87.157.173.5	AS3320 Deutsche Telekom AG	`9.20ms` from Frankfurt am Main, DE
76.166.249.101	AS20001 Charter Communications Inc	`8.44ms` from Los Angeles, US
112.198.27.5	AS4775 Globe Telecoms	`0.59ms` from Manila, PH
216.35.73.133	AS3561 CenturyLink Communications, LLC	`5.44ms` from New York City, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

traceroute -a -n -q1 -f3 -m11 203.250.238.27

traceroute to 203.250.238.27 (203.250.238.27): 11 hops max, 52 byte packets

3 [] 185.1.240.141 0.408 ms

4 [AS24482] 124.6.32.66 191.132 ms

5 [AS24482] 124.6.32.67 235.699 ms

6 *

7 [AS17579] 134.75.103.113 230.41 ms

8 [AS1237] 134.75.8.74 229.682 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On December 6th 2025

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS1237 at robtex.

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