203.230.126.0/24

AS1237 · KISTI

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Summary

Country	South Korea
Domain	kreonet.net
ASN	AS1237
Registry	APNIC
ID	KREONET

WHOIS Details

inetnum:        203.230.120.0 - 203.230.127.255
netname:        KREONet
descr:          KISTI
country:        KR
admin-c:        IM702-AP
tech-c:         IM702-AP
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2025-11-03T07:48:06Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        9, Jinheung-gil, Naju-si, Jeollanam-do
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2020-04-09
mnt-by:         MNT-KRNIC-AP
last-modified:  2025-09-04T01:00:01Z
source:         APNIC

person:         IP Manager
address:        Daejeon Yuseong-gu Daehak-ro 245
country:        KR
phone:          +82-42-869-0707
e-mail:         [email protected]
nic-hdl:        IM702-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2022-01-11T12:18:02Z
source:         APNIC

inetnum:        203.230.120.0 - 203.230.127.255
netname:        KREONet-KR
descr:          KISTI
country:        KR
admin-c:        IA18-KR
tech-c:         IM18-KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
remarks:        This information has been partially mirrored by APNIC from
remarks:        KRNIC. To obtain more specific information, please use the
remarks:        KRNIC whois server at whois.kisa.or.kr.
source:         KRNIC

person:         IP Manager
address:        Daejeon Yuseong-gu Daehak-ro 245
address:        KISTI
country:        KR
phone:          +82-42-869-0707
e-mail:         [email protected]
nic-hdl:        IA18-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected] 20240912
remarks:        This information has been partially mirrored by APNIC from
remarks:        KRNIC. To obtain more specific information, please use the
remarks:        KRNIC whois server at whois.kisa.or.kr.
source:         KRNIC

person:         IP Manager
address:        Daejeon Yuseong-gu Daehak-ro 245
address:        KISTI
country:        KR
phone:          +82-42-869-0707
e-mail:         [email protected]
nic-hdl:        IM18-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected] 20240912
remarks:        This information has been partially mirrored by APNIC from
remarks:        KRNIC. To obtain more specific information, please use the
remarks:        KRNIC whois server at whois.kisa.or.kr.
source:         KRNIC

Nearby Ranges

BGP prefixes that overlap with 203.230.0.0/16

Range	ASN	Company	Num of IPs
203.230.160.0/19	AS45377	Korea Telecom	8,192
203.230.32.0/20	AS17595	Korea Institute of Nuclear Safety	4,096
203.230.80.0/20	AS4766	Korean Education Network	4,096
203.230.24.0/21	AS1237	Korea Institute of Science and Technology Information	2,048
203.230.64.0/21	AS1237	KISTI	2,048
203.230.192.0/22	AS18329	SANGMYUNG UNIVERSITY	1,024
203.230.196.0/23	AS18329	SANGMYUNG UNIVERSITY	512
203.230.212.0/23	AS18028	Gyeongsang National University	512
203.230.4.0/23	AS45363	Sun Moon University	512
203.230.16.0/23	AS1237	Korea Institute of Science and Technology Information	512
203.230.199.0/24	AS3786	Kkottongnae Hyundo University of Social Welfare	256
203.230.218.0/24	AS3786	Korea Soongsil Cyber University	256
203.230.132.0/24	AS4766	Appeals Commission for Education	256
203.230.219.0/24	AS4766	Chungkang College Of Cultural Industries	256
203.230.254.0/24	AS4766	Choonhae College	256
203.230.255.0/24	AS4766	Choonhae College	256
203.230.133.0/24	AS9691	Kyungsung University	256
203.230.208.0/24	AS10053	Yeonsung University	256
203.230.215.0/24	AS9691	Kyungsung University	256
203.230.209.0/24	AS10053	Yeonsung University	256
203.230.240.0/24	AS18023	Korea Maritime University(KMU)	256
203.230.241.0/24	AS18023	Korea Maritime University(KMU)	256
203.230.242.0/24	AS18023	Korea Maritime University(KMU)	256
203.230.243.0/24	AS18023	Korea Maritime University(KMU)	256
203.230.252.0/24	AS18023	Korea Maritime University(KMU)	256
203.230.253.0/24	AS18023	Korea Maritime University(KMU)	256
203.230.214.0/24	AS18028	Gyeongsang National University	256
203.230.198.0/24	AS18329	SANGMYUNG UNIVERSITY	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
78.96.23.216	AS12302 Vodafone Romania S.A.	`1.92ms` from Bucharest, RO
69.14.253.232	AS12083 WideOpenWest Finance LLC	`11.08ms` from Chicago, US
24.210.213.136	AS10796 Charter Communications Inc	`13.67ms` from Cleveland, US
88.153.189.8	AS3209 Vodafone GmbH	`10.01ms` from Frankfurt am Main, DE
92.35.88.248	AS8434 Telenor Sverige AB	`1.20ms` from Goeteborg, SE
112.158.68.120	AS17858 LG POWERCOMM	`1.93ms` from Incheon, KR
110.12.196.40	AS9318 SK Broadband Co Ltd	`1.93ms` from Incheon, KR
86.142.131.184	AS2856 British Telecommunications PLC	`3.24ms` from London, GB
68.5.203.72	AS22773 Cox Communications Inc.	`5.62ms` from Los Angeles, US
79.42.30.152	AS3269 Telecom Italia S.p.A.	`1.97ms` from Milan, IT
153.129.125.216	AS4713 NTT DOCOMO BUSINESS,Inc.	`8.66ms` from Osaka, JP
3.85.149.56	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
73.92.16.232	AS7922 Comcast Cable Communications, LLC	`8.92ms` from San Jose, US
113.26.43.56	AS4134 CHINANET-BACKBONE	`2.82ms` from Taiyuan, CN
113.234.37.104	AS4837 CHINA UNICOM China169 Backbone	`8.29ms` from Tieling, CN
60.133.238.232	AS17676 SoftBank Corp.	`2.92ms` from Tokyo, JP
210.153.226.184	AS2514 NTT PC Communications, Inc.	`6.68ms` from Tokyo, JP
153.246.251.248	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.98ms` from Tokyo, JP
149.78.52.104	AS263801 LINKEAR SRL	`0.96ms` from Buenos Aires, AR
40.177.163.168	AS16509 Amazon.com, Inc.	`1.62ms` from Calgary, CA
39.119.39.216	AS9318 SK Broadband Co Ltd	`3.63ms` from Incheon, KR
74.161.137.56	AS8075 Microsoft Corporation	`0.29ms` from Kloten, CH
176.38.156.88	AS39608 Lanet Network Ltd	`0.53ms` from Kyiv, UA
34.23.186.120	AS396982 Google LLC	`0.15ms` from Moncks Corner, US
186.50.83.184	AS6057 Administracion Nacional de Telecomunicaciones	`1.74ms` from Montevideo, UY

Traceroute

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

traceroute -a -n -q1 -f3 -m11 203.230.126.43

traceroute to 203.230.126.43 (203.230.126.43): 11 hops max, 52 byte packets

3 [AS13194] 185.1.62.227 39.442 ms

4 [AS24482] 124.6.32.66 214.54 ms

5 [AS24482] 124.6.32.67 287.166 ms

6 *

7 [AS17579] 134.75.103.121 287.103 ms

8 [AS1237] 134.75.8.74 288.535 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Kharkiv, UA

On January 30th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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