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
210.125.222.165	AS18029 Daejeon Helath Sciences College	`2.90ms` from Seoul, KR
210.125.243.1	AS4766 Korea Telecom	`1.78ms` from Seoul, KR
210.125.173.9	AS4766 Korea Telecom	`7.99ms` from Seoul, KR
210.125.138.3	AS18029 Daejeon Helath Sciences College	`4.06ms` from Seoul, KR
210.125.147.158	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`23.99ms` from Seoul, KR
210.125.203.25	AS4766 Korea Telecom	`5.85ms` from Seoul, KR
210.125.241.1	AS4766 Korea Telecom	`1.81ms` from Seoul, KR
210.125.238.31	AS10190 Joongbu University	`5.47ms` from Seoul, KR
210.125.223.60	AS18029 Daejeon Helath Sciences College	`3.04ms` from Seoul, KR
210.125.220.244	AS18029 Daejeon Helath Sciences College	`3.29ms` from Seoul, KR
210.125.211.3	AS3786 LG DACOM Corporation	`3.33ms` from Seoul, KR
210.125.191.62	AS4766 Korea Telecom	`3.60ms` from Seoul, KR
210.125.244.1	AS4766 Korea Telecom	`1.75ms` from Seoul, KR
210.125.171.214	AS4766 Korea Telecom	`5.75ms` from Seoul, KR
210.125.177.64	AS9978 The University of Seoul	`4.26ms` from Seoul, KR
210.125.136.31	AS18029 Daejeon Helath Sciences College	`2.86ms` from Seoul, KR
210.125.139.254	AS18029 Daejeon Helath Sciences College	`2.93ms` from Seoul, KR
210.125.161.9	AS4766 Korea Telecom	`4.15ms` from Seoul, KR
210.125.245.1	AS4766 Korea Telecom	`1.81ms` from Seoul, KR
210.125.132.1	AS4766 Korea Telecom	`4.93ms` from Seoul, KR
210.125.240.102	AS4766 Korea Telecom	`1.34ms` from Seoul, KR
210.125.170.37	AS4766 Korea Telecom	`5.67ms` from Seoul, KR
210.125.201.9	AS4766 Korea Telecom	`5.82ms` from Seoul, KR
210.125.247.1	AS4766 Korea Telecom	`1.80ms` from Seoul, KR
210.125.193.28	AS9867 VISION College of Jeonju	`4.53ms` 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
50.169.53.193	AS7922 Comcast Cable Communications, LLC	`2.73ms` from Ashburn, US
157.130.68.145	AS701 Verizon Business	`1.19ms` from Atlanta, US
32.13.106.129	AS7018 AT&T Enterprises, LLC	`2.43ms` from Atlanta, US
218.247.194.1	AS4808 China Unicom Beijing Province Network	`4.50ms` from Beijing, CN
181.48.227.209	AS14080 Telmex Colombia S.A.	`1.25ms` from Bogota, CO
109.100.0.1	AS9050 Orange Romania S.A.	`1.42ms` from Bucharest, RO
80.64.72.129	AS50261 ACE Telecom Kft	`0.24ms` from Budapest, HU
79.121.79.1	AS5483 Magyar Telekom Plc.	`8.50ms` from Budapest, HU
186.138.250.1	AS7303 Telecom Argentina S.A.	`1.04ms` from Buenos Aires, AR
112.44.228.1	AS9808 China Mobile Communications Group Co., Ltd.	`7.15ms` from Chengdu, CN
27.8.4.1	AS4837 CHINA UNICOM China169 Backbone	`0.68ms` from Chongqing, CN
194.255.189.177	AS3308 Telia Company AB	`0.99ms` from Copenhagen, DK
35.238.195.97	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
199.87.88.1	AS30182 ZION BROADBAND INC	`9.98ms` from Dallas, US
47.190.192.1	AS5650 Frontier Communications of America, Inc.	`1.73ms` from Dallas, US
50.3.206.1	AS62904 Eonix Corporation	`0.56ms` from Dallas, US
174.100.160.1	AS10796 Charter Communications Inc	`7.97ms` from Flint, US
78.72.34.1	AS3301 Telia Company AB	`2.15ms` from Goeteborg, SE
87.65.9.209	AS5432 Proximus NV	`5.10ms` from Gravelines, FR
84.115.185.1	AS8412 T-Mobile Austria GmbH	`0.23ms` from Graz, AT
14.29.72.145	AS4134 CHINANET-BACKBONE	`3.75ms` from Guangzhou, CN
175.178.85.177	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.99ms` from Guangzhou, CN
149.214.1.1	AS5605 NetUSE AG	`2.16ms` from Hamburg, DE
14.182.240.129	AS45899 VNPT Corp	`4.33ms` from Hanoi, VN
154.89.102.65	AS142286 LUOGELANG (FRANCE) LIMITED	`1.02ms` from Hong Kong, HK

Traceroute

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

traceroute -a -n -q1 -f5 -m16 210.125.153.203

traceroute to 210.125.153.203 (210.125.153.203): 16 hops max, 52 byte packets

5 [AS3257] 89.149.130.54 59.587 ms

6 [AS4766] 121.189.2.25 67.842 ms

7 [AS4766] 112.174.87.249 172.512 ms

8 [AS4766] 112.174.86.189 172.543 ms

9 [AS4766] 112.174.47.218 176.636 ms

10 [AS4766] 112.188.195.22 184.189 ms

11 *

12 [AS4766] 211.38.88.182 177.952 ms

13 [AS18158] 210.125.159.69 176.561 ms

14 *

15 *

16 *

Measurement taken from

IPinfo ProbeNet in New York City, US

On November 14th 2025

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