203.230.200.0/21

AS4766 · Korea Telecom

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Summary

Country	South Korea
Domain	kren.kr
ASN	AS4766
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:        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:        203.230.192.0 - 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
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

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 is 1 domain name hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.230.206.145	hanil.ac.kr	1
203.230.200.17	hanil.ac.kr	1
203.230.200.18	hanil.ac.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

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
203.230.200.46	AS4766 Korea Telecom	`4.28ms` from Seoul, KR
203.230.206.145	AS4766 Korea Telecom	`1.31ms` from UEruemqi, CN

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
95.58.245.21	AS9198 JSC Kazakhtelecom	`2.27ms` from Almaty, KZ
44.238.172.245	AS16509 Amazon.com, Inc.	`0.14ms` from Boardman, US
196.127.163.213	AS36925 MEDITELECOM	`3.44ms` from Casablanca, MA
70.182.104.53	AS22773 Cox Communications Inc.	`4.06ms` from Kansas City, US
172.64.249.149	AS13335 Cloudflare, Inc.	`0.17ms` from Lima, PE
31.50.112.181	AS2856 British Telecommunications PLC	`4.64ms` from London, GB
32.140.169.133	AS7018 AT&T Enterprises, LLC	`1.22ms` from Los Angeles, US
108.62.104.165	AS27411 Leaseweb USA, Inc.	`0.81ms` from Mount Prospect, US
109.69.198.133	AS16347 ADISTA SAS	`0.49ms` from Paris, FR
75.68.241.5	AS7922 Comcast Cable Communications, LLC	`10.01ms` from Providence, US
68.189.87.85	AS20115 Charter Communications LLC	`6.87ms` from Redding, US
121.151.118.69	AS4766 Korea Telecom	`4.88ms` from Seoul, KR
3.104.46.181	AS16509 Amazon.com, Inc.	`0.05ms` from Sydney, AU
195.58.4.117	AS3253 PJSC "Vimpelcom"	`0.60ms` from Yekaterinburg, RU
217.25.137.5	AS12843 TelemaxX Telekommunikation GmbH	`3.27ms` from Frankfurt am Main, DE
113.58.11.37	AS4837 CHINA UNICOM China169 Backbone	`12.83ms` from Guangzhou, CN
67.225.235.117	AS32244 Liquid Web, L.L.C	`0.46ms` from Lansing, US
31.172.247.229	AS34920 Simply Romford	`1.73ms` from London, GB
142.129.197.101	AS20001 Charter Communications Inc	`5.46ms` from Los Angeles, US
68.221.98.117	AS8075 Microsoft Corporation	`0.13ms` from Madrid, ES
80.225.220.149	AS31898 Oracle Corporation	`0.17ms` from Mumbai, IN
195.101.51.37	AS3215 Orange S.A.	`3.56ms` from Paris, FR
3.234.204.53	AS14618 Amazon.com, Inc.	`0.16ms` from Reston, US
211.109.52.37	AS9318 SK Broadband Co Ltd	`1.26ms` from Seoul, KR
183.194.18.229	AS24400 Shanghai Mobile Communications Co.,Ltd.	`3.15ms` from Shanghai, CN

Traceroute

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

traceroute -a -n -q1 -m8 203.230.204.171

traceroute to 203.230.204.171 (203.230.204.171): 8 hops max, 52 byte packets

1 [AS15169] 74.125.251.95 105.123 ms

2 *

3 [AS4766] 112.174.84.57 131.772 ms

4 [AS4766] 112.174.8.145 133.101 ms

5 [AS4766] 112.189.225.78 137.661 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Las Vegas, US

On October 30th 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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