203.237.108.0/24

AS9754 · CHOSUN UNIVERSITY

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Summary

Country	South Korea
Domain	kren.kr
ASN	AS9754
Parent Range	203.237.96.0/19
Registry	APNIC
ID	KREN

WHOIS Details

inetnum:        203.237.96.0 - 203.237.127.255
netname:        KREN
descr:          Korean Education Network
admin-c:        IM70-AP
tech-c:         IM70-AP
country:        KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2017-02-02T04:55:26Z
source:         APNIC

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

person:         IP Manager
address:        57 Daehak-ro, Jongno-gu, Seoul
country:        KR
phone:          +82-2-882-5363
e-mail:         kindman@kren.kr
nic-hdl:        IM70-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2025-11-17T00:10:02Z
source:         APNIC

inetnum:        203.237.96.0 - 203.237.127.255
netname:        KREN-KR
descr:          Korean Education Network
country:        KR
admin-c:        IA142-KR
tech-c:         IM142-KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
changed:        hostmaster@nic.or.kr 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:        57 Daehak-ro, Jongno-gu, Seoul
address:        1
country:        KR
phone:          +82-2-882-5363
e-mail:         kindman@kren.kr
nic-hdl:        IA142-KR
mnt-by:         MNT-KRNIC-AP
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:        57 Daehak-ro, Jongno-gu, Seoul
address:        1
country:        KR
phone:          +82-2-882-5363
e-mail:         kindman@kren.kr
nic-hdl:        IM142-KR
mnt-by:         MNT-KRNIC-AP
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

Overlapping Ranges

BGP prefixes that contain 203.237.108.0/24

Range	ASN	Company	Num of IPs
203.237.96.0/19	AS9754	Korean Education Network	8,192

Nearby Ranges

BGP prefixes that overlap with 203.237.0.0/16

Range	ASN	Company	Num of IPs
203.237.128.0/17	AS23983	Korean Education Network	32,768
203.237.128.0/17	AS4766	Korean Education Network	32,768
203.237.128.0/17	AS3786	Korean Education Network	32,768
203.237.64.0/19	AS9778	KISTI	8,192
203.237.32.0/19	AS18297	Gwangju Institute of Science and Technology	8,192
203.237.0.0/19	AS10166	Korea Water Resources Corporation	8,192
203.237.96.0/19	AS9754	Korean Education Network	8,192
203.237.202.0/23	AS18026	CHEJU NATIONAL UNIVERSITY	512
203.237.175.0/24	AS18031	SANGMYUNG UNIVERSITY	256
203.237.160.0/24	AS3786	Dongyang Technical College	256
203.237.161.0/24	AS3786	Dongyang Technical College	256
203.237.162.0/24	AS3786	Dongyang Technical College	256
203.237.163.0/24	AS3786	Dongyang Technical College	256
203.237.164.0/24	AS3786	Dongyang Technical College	256
203.237.165.0/24	AS3786	Dongyang Technical College	256
203.237.166.0/24	AS3786	Dongyang Technical College	256
203.237.167.0/24	AS3786	Dongyang Technical College	256
203.237.172.0/24	AS3786	SANGMYUNG UNIVERSITY	256
203.237.254.0/24	AS38694	CHEONGJU NATIONAL UNIVERSITY OF EDUCATION	256
203.237.255.0/24	AS38694	CHEONGJU NATIONAL UNIVERSITY OF EDUCATION	256
203.237.154.0/24	AS4766	DAEJEON UNIVERSITY	256
203.237.156.0/24	AS4766	DAEJEON UNIVERSITY	256
203.237.157.0/24	AS4766	DAEJEON UNIVERSITY	256
203.237.158.0/24	AS4766	DAEJEON UNIVERSITY	256
203.237.159.0/24	AS4766	DAEJEON UNIVERSITY	256
203.237.191.0/24	AS4766	daekuUniversity of Education	256
203.237.204.0/24	AS4766	useokUniversity	256
203.237.205.0/24	AS4766	useokUniversity	256
203.237.206.0/24	AS4766	useokUniversity	256
203.237.207.0/24	AS4766	useokUniversity	256
203.237.208.0/24	AS4766	useokUniversity	256
203.237.209.0/24	AS4766	useokUniversity	256
203.237.210.0/24	AS4766	useokUniversity	256
203.237.211.0/24	AS4766	useokUniversity	256
203.237.212.0/24	AS4766	useokUniversity	256
203.237.213.0/24	AS4766	useokUniversity	256
203.237.214.0/24	AS4766	useokUniversity	256
203.237.215.0/24	AS4766	useokUniversity	256
203.237.224.0/24	AS4766	DANKOOK UNIVERSITY	256
203.237.225.0/24	AS4766	HALLYM COLLEGE	256
203.237.231.0/24	AS4766	HALLYM COLLEGE	256
203.237.250.0/24	AS4766	Chungang University	256
203.237.190.0/24	AS9318	Shinhan University	256
203.237.216.0/24	AS9318	DANKOOK UNIVERSITY	256
203.237.217.0/24	AS9318	DANKOOK UNIVERSITY	256
203.237.218.0/24	AS9318	DANKOOK UNIVERSITY	256
203.237.220.0/24	AS9318	DANKOOK UNIVERSITY	256
203.237.221.0/24	AS9318	DANKOOK UNIVERSITY	256
203.237.222.0/24	AS9318	DANKOOK UNIVERSITY	256
203.237.223.0/24	AS9318	DANKOOK UNIVERSITY	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

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
68.46.192.56	AS7922 Comcast Cable Communications, LLC	`9.64ms` from Atlanta, US
77.191.84.40	AS6805 Telefonica Germany GmbH & Co.OHG	`5.20ms` from Berlin, DE
77.183.22.200	AS6805 Telefonica Germany GmbH & Co.OHG	`4.45ms` from Berlin, DE
91.127.96.248	AS6855 Slovak Telekom, a.s.	`3.76ms` from Bratislava, SK
81.164.47.120	AS6848 Telenet BV	`4.91ms` from Brussels, BE
72.110.218.232	AS6167 Verizon Business	`16.39ms` from Chicago, US
143.55.188.56	AS31890 Rocket, LLC	`1.44ms` from Detroit, US
86.45.175.56	AS5466 Eircom Limited	`2.65ms` from Dublin, IE
116.42.97.152	AS17858 LG POWERCOMM	`1.52ms` from Incheon, KR
1.255.217.104	AS9318 SK Broadband Co Ltd	`6.92ms` from Incheon, KR
209.59.155.104	AS32244 Liquid Web, L.L.C	`0.16ms` from Lansing, US
31.53.29.24	AS2856 British Telecommunications PLC	`6.63ms` from London, GB
126.93.236.72	AS17676 SoftBank Corp.	`7.72ms` from Osaka, JP
91.175.113.168	AS12322 Free SAS	`2.38ms` from Paris, FR
84.242.229.72	AS16301 Novgorod Datacom LLC	`4.73ms` from Saint Petersburg, RU
162.240.27.8	AS46606 Unified Layer	`1.99ms` from Salt Lake City, US
64.197.125.136	AS7029 Windstream Communications LLC	`0.38ms` from San Jose, US
186.156.190.120	AS22047 VTR BANDA ANCHA S.A.	`15.41ms` from Santiago, CL
67.245.174.216	AS12271 Charter Communications Inc	`6.40ms` from Secaucus, US
104.43.23.152	AS8075 Microsoft Corporation	`0.58ms` from Singapore, SG
1.172.59.40	AS3462 Data Communication Business Group	`4.57ms` from Taichung, TW
219.86.149.8	AS9924 Taiwan Fixed Network, Telco and Network Service Provider.	`1.35ms` from Taipei, TW
92.52.10.248	AS15962 Orange Slovensko a.s.	`3.81ms` from Bratislava, SK
36.138.81.72	AS56047 China Mobile communications corporation	`0.39ms` from Changsha, CN
45.52.46.184	AS5650 Frontier Communications of America, Inc.	`15.03ms` from Chicago, US

Traceroute

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

traceroute -a -n -q1 -f3 -m7 203.237.108.198

traceroute to 203.237.108.198 (203.237.108.198): 7 hops max, 52 byte packets

3 [AS60345] 89.144.41.122 4.631 ms

4 [AS60345] 46.18.110.210 10.949 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Copenhagen, DK

On January 19th 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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