203.237.127.0/24

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 203.237.127.0/24

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

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

IP Address ASN Details
203.237.127.73 AS9754 CHOSUN UNIVERSITY 5.03ms 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
52.61.142.136 AS8987 Amazon Data Services Ireland Ltd 0.30ms from Boardman, US
3.151.241.136 AS16509 Amazon.com, Inc. 0.14ms from Columbus, US
94.132.235.200 AS2860 NOS COMUNICACOES, S.A. 2.80ms from Lisbon, PT
84.9.52.136 AS25310 Vodafone Limited 2.64ms from Manchester, GB
201.102.16.232 AS8151 UNINET 1.52ms from Mexico City, MX
216.225.98.72 AS30404 Blue Stream 1.68ms from Miami, US
62.148.10.136 AS39376 PUBLIC JOINT-STOCK COMPANY WORLD TRADE CENTER MOSCOW 1.79ms from Moscow, RU
109.31.83.8 AS15557 Societe Francaise Du Radiotelephone - SFR SA 2.20ms from Paris, FR
13.211.107.120 AS16509 Amazon.com, Inc. 0.14ms from Sydney, AU
175.150.63.88 AS4837 CHINA UNICOM China169 Backbone 11.62ms from Tieling, CN
95.110.97.104 AS28812 PJSC Bashinformsvyaz 9.04ms from Yekaterinburg, RU
51.154.73.168 AS15796 Salt Mobile SA 1.22ms from Zuerich, CH
74.179.212.216 AS8075 Microsoft Corporation 0.39ms from Ashburn, US
196.221.240.184 AS24835 Vodafone Data 14.12ms from Cairo, EG
51.9.6.40 AS6871 Plusnet 4.77ms from Erith, GB
93.204.35.24 AS3320 Deutsche Telekom AG 2.79ms from Frankfurt am Main, DE
183.11.226.136 AS4134 CHINANET-BACKBONE 1.59ms from Guangzhou, CN
42.1.81.72 AS131429 MOBIFONE Corporation 0.60ms from Hanoi, VN
118.48.164.216 AS4766 Korea Telecom 1.62ms from Incheon, KR
182.68.154.232 AS24560 Bharti Airtel Ltd., Telemedia Services 6.36ms from Kolkata, IN
87.14.172.88 AS3269 Telecom Italia S.p.A. 3.47ms from Milan, IT
27.209.68.152 AS4837 CHINA UNICOM China169 Backbone 6.54ms from Qingdao, CN
54.161.150.56 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
141.164.54.232 AS20473 The Constant Company, LLC 0.16ms from Seoul, KR
49.31.172.184 AS4766 Korea Telecom 8.20ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 203.237.127.66
traceroute to 203.237.127.66 (203.237.127.66): 64 hops max, 52 byte packets
3 *
4 *
5 *
6 *
7 [AS3786] 1.208.164.94 2.412 ms
8 *
9 [AS3786] 1.208.90.10 6.341 ms
10 [AS9754] 203.237.127.66 5.311 ms
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.

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