1. All IP Ranges
  2. 203.0.0.0/8
  3. 203.237.0.0/16
  4. AS9754  | 203.237.96.0/19

203.237.96.0/19

AS9754  ·  CHOSUN UNIVERSITY

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Summary

Country South Korea
Domain kren.kr
ASN AS9754
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

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
203.237.202.0/23 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 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP

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

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

IP Address ASN Details
203.237.127.67 AS9754 CHOSUN UNIVERSITY 5.67ms from Seoul, KR
203.237.126.25 AS9754 CHOSUN UNIVERSITY 289.67ms from Tirana, AL
203.237.109.17 AS9754 CHOSUN UNIVERSITY 5.66ms from Seoul, KR
203.237.103.70 AS9754 CHOSUN UNIVERSITY 272.56ms from Tirana, AL
203.237.123.197 AS9754 CHOSUN UNIVERSITY 290.04ms from Tirana, AL

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
67.186.32.115 AS7922 Comcast Cable Communications, LLC 11.44ms from Ashburn, US
67.53.17.243 AS10796 Charter Communications Inc 2.40ms from Chicago, US
4.209.60.227 AS8075 Microsoft Corporation 0.14ms from Dublin, IE
93.202.125.115 AS3320 Deutsche Telekom AG 5.43ms from Frankfurt am Main, DE
119.91.113.67 AS45090 Shenzhen Tencent Computer Systems Company Limited 2.01ms from Guangzhou, CN
120.196.236.83 AS9808 China Mobile Communications Group Co., Ltd. 7.69ms from Guangzhou, CN
31.222.151.131 AS15395 Rackspace Ltd. 1.39ms from London, GB
86.138.66.35 AS2856 British Telecommunications PLC 6.29ms from London, GB
166.0.209.115 AS58061 Scalaxy B.V. 0.19ms from Meppel, NL
168.90.120.227 AS53175 Unetvale Servicos e Equipamentos LTDA 9.84ms from Osasco, BR
213.158.233.131 AS2116 GLOBALCONNECT AS 1.69ms from Sandefjord, NO
100.35.219.51 AS701 Verizon Business 1.97ms from Secaucus, US
14.55.179.147 AS4766 Korea Telecom 4.96ms from Seoul, KR
221.142.197.195 AS9318 SK Broadband Co Ltd 6.23ms from Seoul, KR
118.170.190.227 AS3462 Data Communication Business Group 2.95ms from Taichung, TW
99.224.105.147 AS812 Rogers Communications Canada Inc. 4.13ms from Toronto, CA
96.63.78.3 AS32110 Asurion Insurance Services, Inc. 1.37ms from Ashburn, US
84.153.32.131 AS3320 Deutsche Telekom AG 2.13ms from Berlin, DE
77.2.96.195 AS6805 Telefonica Germany GmbH & Co.OHG 8.70ms from Frankfurt am Main, DE
117.6.210.227 AS7552 Viettel Group 1.77ms from Hanoi, VN
159.138.39.179 AS136907 HUAWEI CLOUDS 0.93ms from Hong Kong, HK
72.235.160.3 AS36149 Hawaiian Telcom Services Company, Inc. 0.90ms from Honolulu, US
98.148.136.163 AS20001 Charter Communications Inc 7.40ms from Los Angeles, US
122.244.40.99 AS4134 CHINANET-BACKBONE 2.79ms from Ningbo, CN
121.82.95.67 AS17511 OPTAGE Inc. 3.00ms from Osaka, JP

Traceroute

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

$
traceroute -a -n -q1 203.237.109.10
traceroute to 203.237.109.10 (203.237.109.10): 64 hops max, 52 byte packets
2 *
3 *
4 [AS4766] 112.174.17.30 6.187 ms
5 *
8 *
Measurement taken from IPinfo ProbeNet in Seoul, KR
On

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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