210.125.128.0/17

AS4766 · Korea Telecom

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Summary

Country	South Korea
Domain	kren.kr
ASN	AS4766
Registry	APNIC
ID	KREN

WHOIS Details

inetnum:        210.125.128.0 - 210.125.255.255
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:  2017-02-02T04:55:44Z
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:        210.125.128.0 - 210.125.255.255
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 210.125.0.0/16

Range	ASN	Company	Num of IPs
210.125.16.0/20	AS23714	Korean Education Network	4,096

Hosted domains

There are 44 domain names hosted across 30 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
210.125.163.34	knsu.ac.kr	4
210.125.167.13	ghu.ac.kr	2
210.125.186.11	jhc.ac.kr	1
210.125.130.5	kwu.ac.kr	1
210.125.130.56	kwus.kr	1
210.125.185.222	history.go.kr	1
210.125.163.2	knupe.ac.kr	1
210.125.225.226	canreg.kr	1
210.125.201.252	angiokndir.kr	1
210.125.173.9	jhc.ac.kr	1
210.125.201.251	dkndir.kr	1
210.125.200.111	dhc.ac.kr	1
210.125.204.11	dongju.ac.kr	1
210.125.201.253	kndir.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

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

IP Address	ASN	Details
210.125.173.9	AS4766 Korea Telecom	`7.99ms` from Seoul, KR
210.125.211.3	AS3786 LG DACOM Corporation	`3.33ms` from Seoul, KR
210.125.140.131	AS3786 LG DACOM Corporation	`3.02ms` from Seoul, KR
210.125.202.1	AS4766 Korea Telecom	`5.92ms` from Seoul, KR
210.125.133.33	AS4766 Korea Telecom	`5.24ms` from Seoul, KR
210.125.246.1	AS4766 Korea Telecom	`1.65ms` from Seoul, KR
210.125.188.1	AS4766 Korea Telecom	`4.79ms` from Seoul, KR
210.125.157.42	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`23.61ms` from Seoul, KR
210.125.156.153	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`23.11ms` from Seoul, KR
210.125.247.1	AS4766 Korea Telecom	`1.80ms` from Seoul, KR
210.125.163.104	AS4766 Korea Telecom	`1.34ms` from Seoul, KR
210.125.137.252	AS18029 Daejeon Helath Sciences College	`3.23ms` from Seoul, KR
210.125.158.23	AS3786 LG DACOM Corporation	`4.52ms` from Seoul, KR
210.125.141.206	AS3786 LG DACOM Corporation	`2.71ms` from Seoul, KR
210.125.159.254	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`2.85ms` from Seoul, KR
210.125.204.54	AS4766 Korea Telecom	`6.45ms` from Seoul, KR
210.125.160.48	AS4766 Korea Telecom	`3.57ms` from Seoul, KR
210.125.132.1	AS4766 Korea Telecom	`4.93ms` from Seoul, KR
210.125.224.40	AS3786 LG DACOM Corporation	`3.00ms` from Seoul, KR
210.125.207.181	AS4766 Korea Telecom	`6.60ms` from Seoul, KR
210.125.184.84	AS4766 Korea Telecom	`1.13ms` from Seoul, KR
210.125.189.2	AS4766 Korea Telecom	`4.25ms` from Seoul, KR
210.125.130.5	AS4766 Korea Telecom	`5.21ms` from Seoul, KR
210.125.176.78	AS9978 The University of Seoul	`3.37ms` from Seoul, KR
210.125.138.3	AS18029 Daejeon Helath Sciences College	`4.06ms` 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
151.236.132.241	AS59599 NCCW B.V.	`6.37ms` from Amsterdam, NL
50.81.238.1	AS30036 Mediacom Communications Corp	`10.03ms` from Atlanta, US
12.41.103.209	AS7018 AT&T Enterprises, LLC	`3.06ms` from Atlanta, US
23.48.72.17	AS16625 Akamai Technologies, Inc.	`0.57ms` from Bangkok, TH
117.131.236.241	AS38019 tianjin Mobile Communication Company Limited	`3.49ms` from Beijing, CN
37.80.40.33	AS3320 Deutsche Telekom AG	`17.04ms` from Berlin, DE
190.71.140.209	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`0.74ms` from Bogota, CO
98.118.38.1	AS701 Verizon Business	`1.75ms` from Boston, US
188.83.133.1	AS3243 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`4.68ms` from Braga, PT
196.245.154.65	AS41564 Orion Network Limited	`2.37ms` from Bratislava, SK
122.151.171.81	AS9443 Vocus Retail	`8.89ms` from Brisbane, AU
181.230.3.1	AS7303 Telecom Argentina S.A.	`1.06ms` from Buenos Aires, AR
66.46.114.49	AS6461 Zayo Bandwidth	`0.72ms` from Calgary, CA
105.78.2.145	AS36884 Wana Corporate	`11.60ms` from Casablanca, MA
154.3.87.1	AS174 Cogent Communications, LLC	`0.62ms` from Chicago, US
66.94.209.1	AS21908 Family Video Movie Club Inc.	`2.20ms` from Chicago, US
200.126.193.1	AS7303 Telecom Argentina S.A.	`2.26ms` from Cordoba, AR
138.122.152.33	AS264321 NEW OESTE TELECOMUNICACOES LTDA	`11.93ms` from Curitiba, BR
68.185.216.1	AS20115 Charter Communications LLC	`3.63ms` from Dallas, US
199.87.88.1	AS30182 ZION BROADBAND INC	`9.98ms` from Dallas, US
71.218.160.1	AS209 CenturyLink Communications, LLC	`1.29ms` from Denver, US
198.243.23.241	AS209 CenturyLink Communications, LLC	`2.98ms` from Denver, US
69.39.24.193	AS21803 Cedar Networks	`11.36ms` from Denver, US
34.246.245.225	AS16509 Amazon.com, Inc.	`0.15ms` from Dublin, IE
35.157.228.65	AS16509 Amazon.com, Inc.	`0.14ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 -m11 210.125.144.245

traceroute to 210.125.144.245 (210.125.144.245): 11 hops max, 52 byte packets

1 [AS15169] 72.14.236.39 108.742 ms

2 *

3 [AS4766] 112.174.84.61 157.508 ms

4 [AS4766] 112.174.49.218 154.362 ms

5 [AS4766] 112.188.195.14 151.045 ms

6 *

7 [AS4766] 211.38.88.182 150.695 ms

8 [AS18158] 210.125.159.69 154.607 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Delhi, IN

On November 14th 2025

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