203.237.112.0/24

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:         [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:        57 Daehak-ro, Jongno-gu, Seoul
country:        KR
phone:          +82-2-882-5363
e-mail:         [email protected]
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:        [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:        57 Daehak-ro, Jongno-gu, Seoul
address:        1
country:        KR
phone:          +82-2-882-5363
e-mail:         [email protected]
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:         [email protected]
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 203.237.112.0/24

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

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
109.128.1.168 AS5432 Proximus NV 2.02ms from Brussels, BE
213.114.107.72 AS8434 Telenor Sverige AB 2.09ms from Copenhagen, DK
176.249.27.184 AS5607 Sky UK Limited 5.30ms from Erith, GB
87.145.176.8 AS3320 Deutsche Telekom AG 2.40ms from Frankfurt am Main, DE
73.63.234.136 AS7922 Comcast Cable Communications, LLC 5.88ms from Fremont, US
103.89.37.152 AS23860 Alliance Broadband Services Pvt. Ltd. 8.79ms from Kolkata, IN
39.146.179.72 AS9808 China Mobile Communications Group Co., Ltd. 6.01ms from Nanjing, CN
79.214.81.72 AS3320 Deutsche Telekom AG 7.27ms from Nuernberg, DE
186.192.40.248 AS53132 Mega Grupo de Telecomunicações Ltda 10.21ms from Rio de Janeiro, BR
218.36.12.120 AS38661 abcle 2.89ms from Seoul, KR
222.108.178.168 AS4766 Korea Telecom 1.03ms from Seoul, KR
189.59.20.8 AS18881 TELEFÔNICA BRASIL S.A 9.40ms from São Paulo, BR
38.94.42.232 AS174 Cogent Communications, LLC 0.98ms from Boca Raton, US
13.225.63.40 AS16509 Amazon.com, Inc. 0.20ms from Dallas, US
108.93.122.168 AS7018 AT&T Enterprises, LLC 2.12ms from Dallas, US
204.121.131.120 AS68 Los Alamos National Laboratory 11.32ms from Denver, US
23.34.5.104 AS16625 Akamai Technologies, Inc. 0.14ms from Fortaleza, BR
62.106.5.88 AS8829 ElmoNet Oy 6.63ms from Helsinki, FI
41.132.35.8 AS20011 Dimension Data 1.91ms from Johannesburg, ZA
82.126.102.216 AS3215 Orange S.A. 13.35ms from Marseille, FR
151.71.50.104 AS1267 WIND TRE S.P.A. 9.37ms from Milan, IT
212.49.95.200 AS12455 Kenyan Post & Telecommunications Company / Telkom Kenya Ltd 0.63ms from Nairobi, KE
157.245.141.248 AS14061 DigitalOcean, LLC 0.23ms from New York City, US
107.170.87.72 AS14061 DigitalOcean, LLC 0.69ms from New York City, US
173.59.236.168 AS701 Verizon Business 3.85ms from Philadelphia, US

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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