203.237.169.0/24

AS18031 · Sangmyung University

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Summary

Country	South Korea
Domain	kren.kr
ASN	AS18031
Parent Range	203.237.128.0/17
Registry	APNIC
ID	KREN

WHOIS Details

inetnum:        203.237.128.0 - 203.237.255.255
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:  2017-02-02T04:55:27Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        Jeollanam-do Naju-si Jinheung-gil
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:  2021-06-15T06:21:49Z
source:         APNIC

person:         IP Manager
address:        Seoul Gwanak-gu Gwanak-ro
country:        KR
phone:          +82-2-882-5363
e-mail:         kindman@kren.kr
nic-hdl:        IM70-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2024-07-09T23:56:03Z
source:         APNIC

inetnum:        203.237.128.0 - 203.237.255.255
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
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.
changed:        hostmaster@nic.or.kr
source:         KRNIC

person:         IP Manager
address:        Seoul Gwanak-gu Gwanak-ro
address:        1
country:        KR
phone:          +82-2-882-5363
e-mail:         kindman@kren.kr
nic-hdl:        IA142-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr
source:         KRNIC

person:         IP Manager
address:        Seoul Gwanak-gu Gwanak-ro
address:        1
country:        KR
phone:          +82-2-882-5363
e-mail:         kindman@kren.kr
nic-hdl:        IM142-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr
source:         KRNIC

Overlapping Ranges

BGP prefixes that contain 203.237.169.0/24

Range	ASN	Company	Num of IPs
203.237.128.0/17	AS17614	Korean Education Network	32,768
203.237.128.0/17	AS4766	Korean Education Network	32,768
203.237.128.0/17	AS18026	Korean Education Network	32,768
203.237.128.0/17	AS23983	Korean Education Network	32,768
203.237.128.0/17	AS18031	Korean Education Network	32,768
203.237.128.0/17	AS3786	Korean Education Network	32,768
203.237.128.0/17	AS38694	Korean Education Network	32,768
203.237.128.0/17	AS9318	Korean Education Network	32,768
203.237.128.0/17	AS18319	Korean Education Network	32,768
203.237.128.0/17	AS18329	Korean Education Network	32,768

Nearby Ranges

BGP prefixes that overlap with 203.237.0.0/16

Range	ASN	Company	Num of IPs
203.237.128.0/17	AS17614	Korean Education Network	32,768
203.237.128.0/17	AS18026	Korean Education Network	32,768
203.237.128.0/17	AS18031	Korean Education Network	32,768
203.237.128.0/17	AS18319	Korean Education Network	32,768
203.237.128.0/17	AS18329	Korean Education Network	32,768
203.237.128.0/17	AS23983	Korean Education Network	32,768
203.237.128.0/17	AS3786	Korean Education Network	32,768
203.237.128.0/17	AS38694	Korean Education Network	32,768
203.237.128.0/17	AS4766	Korean Education Network	32,768
203.237.128.0/17	AS9318	Korean Education Network	32,768
203.237.96.0/19	AS9754	Korean Education Network	8,192
203.237.64.0/19	AS9778	KISTI	8,192

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.237.169.237	trafficmap.co.kr	1

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

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Pingable IPs

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

IP Address	ASN	Details
203.237.169.244	AS18031 Sangmyung University	`20.17ms` from Osaka, JP

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
94.122.103.104	AS12978 ANDROMEDA TV DIGITAL PLATFORM ISLETMECILIGI A.S.	`8.91ms` from Ankara, TR
36.91.64.232	AS7713 PT Telekomunikasi Indonesia	`0.87ms` from Batam, ID
81.82.123.232	AS6848 Telenet BV	`9.61ms` from Brussels, BE
154.73.213.248	AS327754 RMS Powertronics CC	`1.98ms` from Durban, ZA
171.241.47.24	AS7552 Viettel Group	`1.09ms` from Hanoi, VN
31.33.171.8	AS5410 Bouygues Telecom SA	`5.04ms` from Marseille, FR
141.168.205.184	AS135887 Belong (Telstra Limited)	`3.29ms` from Melbourne, AU
38.67.254.24	AS13576 SOUTH DAKOTA NETWORK	`11.97ms` from Minneapolis, US
43.204.119.72	AS16509 Amazon.com, Inc.	`0.12ms` from Mumbai, IN
175.231.72.120	AS4766 Korea Telecom	`1.48ms` from Seoul, KR
125.139.151.8	AS4766 Korea Telecom	`4.59ms` from Seoul, KR
125.52.118.88	AS2516 KDDI CORPORATION	`16.77ms` from Tokyo, JP
99.69.53.232	AS7018 AT&T Enterprises, LLC	`6.22ms` from Atlanta, US
118.173.199.8	AS23969 TOT Public Company Limited	`10.34ms` from Bangkok, TH
200.81.150.152	AS270063 COOPERATIVA TELEFONICA Y DE SERVICIOS PUBLICOS DE SUARDI LIMITADA	`5.46ms` from Cordoba, AR
20.112.218.8	AS8075 Microsoft Corporation	`0.36ms` from Des Moines, US
220.185.72.56	AS4134 CHINANET-BACKBONE	`7.24ms` from Hangzhou, CN
117.244.254.88	AS9829 National Internet Backbone	`1.61ms` from Kolkata, IN
81.174.243.200	AS6871 Plusnet	`2.84ms` from London, GB
104.12.51.216	AS7018 AT&T Enterprises, LLC	`2.59ms` from Miami, US
93.54.0.136	AS12874 Fastweb SpA	`0.90ms` from Milan, IT
189.152.19.8	AS8151 UNINET	`10.99ms` from Santiago de Queretaro, MX
112.184.52.40	AS4766 Korea Telecom	`10.28ms` from Seoul, KR
211.51.176.200	AS4766 Korea Telecom	`5.04ms` from Seoul, KR
194.68.249.72	AS1257 Tele2 Sverige AB	`2.11ms` from Stockholm, SE

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 203.237.169.28

traceroute to 203.237.169.28 (203.237.169.28): 7 hops max, 52 byte packets

3 [AS24971] 83.167.254.190 6.586 ms

4 [AS24971] 83.167.254.162 0.199 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Brno, CZ

On November 6th 2025

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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