203.230.244.0/23

AS18023 · Korea Maritime and Ocean University

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Summary

Country	South Korea
Domain	kren.kr
ASN	AS18023
Registry	APNIC
ID	KREN

WHOIS Details

inetnum:        203.230.192.0 - 203.230.255.255
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:  2017-02-02T04:55:24Z
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:        203.230.192.0 - 203.230.255.255
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
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

Nearby Ranges

BGP prefixes that overlap with 203.230.0.0/16

Range	ASN	Company	Num of IPs
203.230.160.0/19	AS45377	Korea Telecom	8,192
203.230.80.0/20	AS4766	Korean Education Network	4,096

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

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

IP Address	ASN	Details
203.230.244.3	AS18023 Korea Maritime and Ocean University	`6.45ms` 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
109.237.203.71	AS50670 VTEL HOLDINGS LIMITED/JORDAN CO.	`3.89ms` from Amman, JO
20.163.249.183	AS8075 Microsoft Corporation	`0.48ms` from Ashburn, US
41.142.72.215	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`7.73ms` from Casablanca, MA
62.66.186.231	AS9158 Telenor A/S	`1.85ms` from Copenhagen, DK
93.137.121.119	AS5391 Hrvatski Telekom d.d.	`8.56ms` from Graz, AT
99.74.25.167	AS7018 AT&T Enterprises, LLC	`12.44ms` from Kansas City, US
52.84.40.119	AS16509 Amazon.com, Inc.	`0.29ms` from Marseille, FR
177.255.241.7	AS27831 Colombia Móvil	`8.70ms` from Medellin, CO
23.47.134.151	AS16625 Akamai Technologies, Inc.	`0.19ms` from Osaka, JP
153.137.148.247	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.53ms` from Osaka, JP
86.210.224.135	AS3215 Orange S.A.	`16.24ms` from Paris, FR
89.81.78.7	AS5410 Bouygues Telecom SA	`1.08ms` from Paris, FR
18.235.38.39	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
151.53.107.199	AS1267 WIND TRE S.P.A.	`6.49ms` from Rome, IT
31.195.224.55	AS3269 Telecom Italia S.p.A.	`1.29ms` from Rome, IT
157.131.87.215	AS46375 Sonic Telecom LLC	`2.08ms` from San Jose, US
13.80.54.103	AS8075 Microsoft Corporation	`0.23ms` from Amsterdam, NL
24.2.181.23	AS7922 Comcast Cable Communications, LLC	`10.55ms` from Boston, US
38.179.21.87	AS15081 Omni Fiber	`4.58ms` from Columbus, US
18.191.130.71	AS16509 Amazon.com, Inc.	`0.14ms` from Columbus, US
13.111.243.103	AS14340 Salesforce.com, Inc.	`0.87ms` from Dallas, US
93.104.53.215	AS8767 M-net Telekommunikations GmbH	`5.67ms` from Frankfurt am Main, DE
51.75.224.55	AS16276 OVH SAS	`0.11ms` from Gravelines, FR
36.140.217.247	AS9808 China Mobile Communications Group Co., Ltd.	`4.33ms` from Guangzhou, CN
35.197.224.119	AS396982 Google LLC	`0.10ms` from London, GB

Traceroute

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

traceroute -a -n -q1 203.230.244.3

traceroute to 203.230.244.3 (203.230.244.3): 64 hops max, 52 byte packets

1 [AS15169] 108.170.241.37 0.858 ms

2 [AS15169] 142.251.199.66 1.186 ms

3 *

4 *

5 *

6 *

7 [AS4766] 221.152.250.222 10.193 ms

8 [AS18023] 203.230.244.3 9.214 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On November 14th 2025

What are IP address ranges?

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