203.232.148.0/22

AS18331 · Daejeon Institute of Science and Technology

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Summary

Country	South Korea
Domain	kren.kr
ASN	AS18331
Registry	KRNIC
ID	KREN-KR

WHOIS Details

inetnum:        203.232.128.0 - 203.232.255.255
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:  2017-12-26T05:58:12Z
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:        203.232.128.0 - 203.232.255.255
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 203.232.0.0/16

No nearby ranges found.

Hosted domains

There are 3 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
203.232.148.6	yes.ac.kr	2
203.232.148.4	yes.ac.kr	2

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

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

IP Address	ASN	Details
203.232.148.38	AS18331 Daejeon Institute of Science and Technology	`4.07ms` from Seoul, KR
203.232.151.216	AS18331 Daejeon Institute of Science and Technology	`4.24ms` from Incheon, 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
172.111.201.6	AS3223 Voxility LLP	`0.53ms` from Ashburn, US
20.72.133.150	AS8075 Microsoft Corporation	`0.39ms` from Ashburn, US
203.96.81.70	AS4648 Global-Gateway Internet	`5.54ms` from Auckland, NZ
1.141.75.118	AS1221 Telstra Limited	`12.37ms` from Brisbane, AU
67.246.85.22	AS11351 Charter Communications Inc	`19.68ms` from Chicago, US
96.185.157.22	AS33542 Comcast Cable Communications, LLC	`0.88ms` from Chicago, US
84.162.55.54	AS3320 Deutsche Telekom AG	`8.62ms` from Frankfurt am Main, DE
202.63.198.22	AS38584 CubeXS Pvt Ltd, Internet Service Provider Pakistan	`0.23ms` from Karachi, PK
192.162.135.246	AS12662 FOP Petrushenko Sergiy Petrovich	`0.83ms` from Kyiv, UA
31.53.78.38	AS2856 British Telecommunications PLC	`4.35ms` from London, GB
145.82.104.214	AS25019 Saudi Telecom Company JSC	`3.83ms` from Manama, BH
12.244.38.6	AS7018 AT&T Enterprises, LLC	`2.19ms` from Miami, US
95.78.194.118	AS56420 JSC ER-Telecom Holding	`3.97ms` from Moscow, RU
100.42.50.198	AS46606 Unified Layer	`1.98ms` from Salt Lake City, US
186.204.21.214	AS28573 Claro NXT Telecomunicacoes Ltda	`4.91ms` from Sao Paulo, BR
112.216.246.166	AS3786 LG DACOM Corporation	`1.77ms` from Seoul, KR
18.177.145.230	AS16509 Amazon.com, Inc.	`0.32ms` from Tokyo, JP
139.171.68.22	AS20115 Charter Communications LLC	`0.68ms` from Ashburn, US
77.243.219.166	AS12301 Invitech ICT Services Kft.	`7.77ms` from Budapest, HU
87.57.210.6	AS3292 TDC Holding A/S	`7.29ms` from Copenhagen, DK
108.236.200.86	AS7018 AT&T Enterprises, LLC	`7.62ms` from Dallas, US
116.114.191.54	AS4837 CHINA UNICOM China169 Backbone	`5.93ms` from Hohhot, CN
73.6.66.230	AS7922 Comcast Cable Communications, LLC	`5.73ms` from Houston, US
5.227.56.22	AS8580 MTS PJSC	`7.81ms` from Kazan, RU
39.39.233.134	AS17557 Pakistan Telecommunication Company Limited	`2.12ms` from Lahore, PK

Traceroute

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

traceroute -a -n -q1 -f2 -m5 203.232.150.16

traceroute to 203.232.150.16 (203.232.150.16): 5 hops max, 52 byte packets

2 [] 193.239.117.168 17.979 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Frankfurt am Main, DE

On February 16th 2026

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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