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
210.125.163.30	xn--3e0bt9h89yh3h.kr	4
210.125.230.2	316.kr	2
210.125.129.20	cshrd.or.kr	2
210.125.200.111	dhc.ac.kr	1
210.125.185.241	koreanhistory.or.kr	1
210.125.201.251	dkndir.kr	1
210.125.163.2	knupe.ac.kr	1
210.125.204.48	dongju.ac.kr	1
210.125.130.5	kwu.ac.kr	1
210.125.230.3	acts.university	1
210.125.204.11	dongju.ac.kr	1
210.125.186.11	jhc.ac.kr	1
210.125.201.252	angiokndir.kr	1
210.125.201.253	kndir.kr	1
210.125.173.9	jhc.ac.kr	1
210.125.161.231	kbtus.ac.kr	1
210.125.225.226	canreg.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

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

IP Address	ASN	Details
210.125.163.1	AS4766 Korea Telecom	`1.39ms` from Seoul, KR
210.125.132.1	AS4766 Korea Telecom	`5.45ms` from Seoul, KR
210.125.176.78	AS9978 The University of Seoul	`2.83ms` from Seoul, KR
210.125.160.48	AS4766 Korea Telecom	`3.96ms` from Seoul, KR
210.125.133.33	AS4766 Korea Telecom	`5.36ms` from Seoul, KR
210.125.202.56	AS17858 LG POWERCOMM	`5.99ms` from Seoul, KR
210.125.140.132	AS3786 LG DACOM Corporation	`3.16ms` from Seoul, KR
210.125.129.152	AS4766 Korea Telecom	`5.00ms` from Seoul, KR
210.125.170.64	AS4766 Korea Telecom	`5.65ms` from Seoul, KR
210.125.147.50	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`23.61ms` from Seoul, KR
210.125.158.25	AS3786 LG DACOM Corporation	`4.65ms` from Seoul, KR
210.125.230.12	AS4766 Korea Telecom	`2.14ms` from Seoul, KR
210.125.243.1	AS4766 Korea Telecom	`1.83ms` from Seoul, KR
210.125.240.102	AS4766 Korea Telecom	`1.46ms` from Seoul, KR
210.125.181.21	AS9978 The University of Seoul	`2.78ms` from Seoul, KR
210.125.245.1	AS4766 Korea Telecom	`1.76ms` from Seoul, KR
210.125.178.134	AS9978 The University of Seoul	`2.44ms` from Seoul, KR
210.125.221.246	AS18029 Daejeon Helath Sciences College	`3.33ms` from Seoul, KR
210.125.156.153	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`24.12ms` from Seoul, KR
210.125.246.1	AS4766 Korea Telecom	`1.88ms` from Seoul, KR
210.125.171.187	AS4766 Korea Telecom	`5.98ms` from Seoul, KR
210.125.238.103	AS10190 Joongbu University	`5.44ms` from Seoul, KR
210.125.200.212	AS17858 LG POWERCOMM	`5.21ms` from Seoul, KR
210.125.136.2	AS18029 Daejeon Helath Sciences College	`3.06ms` from Seoul, KR
210.125.220.244	AS18029 Daejeon Helath Sciences College	`3.45ms` 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
84.105.245.1	AS33915 Vodafone Libertel B.V.	`1.34ms` from Amsterdam, NL
62.108.19.1	AS33915 Vodafone Libertel B.V.	`3.43ms` from Amsterdam, NL
188.219.160.193	AS30722 Vodafone Italia S.p.A.	`8.82ms` from Arezzo, IT
71.116.22.1	AS701 Verizon Business	`15.34ms` from Ashburn, US
69.73.70.193	AS12083 WideOpenWest Finance LLC	`8.63ms` from Atlanta, US
58.11.120.1	AS17552 True Online	`2.68ms` from Bangkok, TH
37.189.183.1	AS3243 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`2.53ms` from Braga, PT
45.235.56.129	AS273683 ALLREDE TELECOM LTDA	`1.42ms` from Brasilia, BR
101.187.141.1	AS1221 Telstra Limited	`0.77ms` from Brisbane, AU
213.224.12.1	AS6848 Telenet BV	`2.15ms` from Brussels, BE
84.199.9.33	AS6848 Telenet BV	`2.04ms` from Brussels, BE
64.239.98.129	AS14363 MTC Communications, Inc.	`6.68ms` from Chicago, US
128.46.124.97	AS17 Purdue University	`5.40ms` from Chicago, US
47.210.72.1	AS19108 Optimum	`5.36ms` from Dallas, US
174.78.167.1	AS22773 Cox Communications Inc.	`13.34ms` from Dallas, US
209.198.62.1	AS8175 High Speed Web/Genesis 2 Networks	`8.44ms` from Denver, US
174.100.160.1	AS10796 Charter Communications Inc	`6.27ms` from Detroit, US
152.160.224.209	AS54163 AHOSTING	`0.29ms` from Detroit, US
95.214.195.1	AS209610 OCKNet GmbH	`0.32ms` from Erfurt, DE
88.65.216.1	AS3209 Vodafone GmbH	`2.73ms` from Frankfurt am Main, DE
120.37.232.1	AS4134 CHINANET-BACKBONE	`2.01ms` from Fuzhou, CN
77.242.175.1	AS15547 netplus.ch SA	`3.65ms` from Geneve, CH
115.231.5.209	AS4134 CHINANET-BACKBONE	`5.12ms` from Hangzhou, CN
101.67.236.1	AS4837 CHINA UNICOM China169 Backbone	`6.17ms` from Hangzhou, CN
182.23.37.33	AS4800 PT Aplikanusa Lintasarta	`0.99ms` from Jakarta, ID

Traceroute

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

traceroute -a -n -q1 -f4 -m9 210.125.165.177

traceroute to 210.125.165.177 (210.125.165.177): 9 hops max, 52 byte packets

4 [AS3356] 4.68.111.74 168.847 ms

5 [AS3786] 1.208.112.145 168.858 ms

6 [AS3786] 1.213.152.121 301.54 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Sofia, BG

On September 18th 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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