210.102.128.0/17

AS4766 · Korea Telecom

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Summary

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

WHOIS Details

inetnum:        210.102.128.0 - 210.102.255.255
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:  2017-02-02T04:55:38Z
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:        210.102.128.0 - 210.102.255.255
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 210.102.0.0/16

Range	ASN	Company	Num of IPs
210.102.32.0/19	AS3786	LG DACOM Corporation	8,192
210.102.0.0/19	AS4663	ELIMNET, INC.	8,192
210.102.64.0/19	AS7557	Korea Trade Network	8,192

Hosted domains

There are 19 domain names hosted across 16 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
210.102.252.8	pcts.ac.kr	2
210.102.190.151	csu.ac.kr	2
210.102.142.29	bunkerbuster.co.kr	1
210.102.237.8	kunjang.ac.kr	1
210.102.225.54	dietscore.co.kr	1
210.102.237.1	kunjang.ac.kr	1
210.102.151.92	sbg.or.kr	1
210.102.175.239	cnc.ac.kr	1
210.102.237.48	kunjang.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

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

IP Address	ASN	Details
210.102.230.209	AS46012 Induk University	`1.54ms` from Seoul, KR
210.102.236.198	AS3786 LG DACOM Corporation	`5.95ms` from Seoul, KR
210.102.252.6	AS4766 Korea Telecom	`1.39ms` from Seoul, KR
210.102.250.254	AS4766 Korea Telecom	`3.44ms` from Seoul, KR
210.102.229.78	AS46012 Induk University	`1.50ms` from Seoul, KR
210.102.253.4	AS4766 Korea Telecom	`1.51ms` from Seoul, KR
210.102.216.73	AS55618 UNIVERSITY OF ULSAN	`6.88ms` from Seoul, KR
210.102.226.241	AS46012 Induk University	`1.39ms` from Seoul, KR
210.102.215.24	AS55618 UNIVERSITY OF ULSAN	`6.81ms` from Seoul, KR
210.102.220.105	AS4766 Korea Telecom	`2.42ms` from Seoul, KR
210.102.248.97	AS4766 Korea Telecom	`4.21ms` from Seoul, KR
210.102.210.114	AS55618 UNIVERSITY OF ULSAN	`7.50ms` from Seoul, KR
210.102.237.38	AS3786 LG DACOM Corporation	`5.58ms` from Seoul, KR
210.102.219.251	AS55618 UNIVERSITY OF ULSAN	`7.73ms` from Seoul, KR
210.102.228.114	AS46012 Induk University	`1.49ms` from Seoul, KR
210.102.227.183	AS46012 Induk University	`1.63ms` from Seoul, KR
210.102.254.7	AS4766 Korea Telecom	`1.76ms` from Seoul, KR
210.102.154.55	AS55618 UNIVERSITY OF ULSAN	`8.21ms` from Dongnae, KR
210.102.157.231	AS55618 UNIVERSITY OF ULSAN	`7.19ms` from Seoul, KR
210.102.188.45	AS3786 LG DACOM Corporation	`1.59ms` from Seoul, KR
210.102.153.22	AS55618 UNIVERSITY OF ULSAN	`8.32ms` from Dongnae, KR
210.102.164.241	AS55618 UNIVERSITY OF ULSAN	`28.43ms` from Seoul, KR
210.102.190.39	AS3786 LG DACOM Corporation	`1.53ms` from Seoul, KR
210.102.191.31	AS3786 LG DACOM Corporation	`1.85ms` from Seoul, KR
210.102.138.243	AS4766 Korea Telecom	`5.93ms` 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
122.108.96.1	AS4804 Microplex PTY LTD	`1.67ms` from Adelaide, AU
212.68.221.1	AS12392 VOO S.A.	`5.22ms` from Amsterdam, NL
84.104.238.1	AS33915 Vodafone Libertel B.V.	`0.88ms` from Amsterdam, NL
194.79.60.209	AS56630 Melbikomas UAB	`0.52ms` from Amsterdam, NL
128.177.114.113	AS6461 Zayo Bandwidth	`0.27ms` from Ashburn, US
68.189.179.1	AS20115 Charter Communications LLC	`7.30ms` from Atlanta, US
67.58.188.129	AS26801 Zito Media, L.P.	`14.85ms` from Atlanta, US
173.16.62.1	AS30036 Mediacom Communications Corp	`5.13ms` from Atlanta, US
222.154.71.145	AS4771 Spark New Zealand Trading Ltd.	`6.23ms` from Auckland, NZ
194.158.71.49	AS6752 Andorra Telecom	`3.38ms` from Barcelona, ES
120.15.171.81	AS4837 CHINA UNICOM China169 Backbone	`10.98ms` from Beijing, CN
35.164.204.129	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
68.9.9.1	AS22773 Cox Communications Inc.	`4.14ms` from Boston, US
201.213.247.1	AS7303 Telecom Argentina S.A.	`14.08ms` from Buenos Aires, AR
181.4.96.1	AS7303 Telecom Argentina S.A.	`5.87ms` from Buenos Aires, AR
78.163.225.1	AS9121 Turk Telekomunikasyon Anonim Sirketi	`2.13ms` from Bursa, TR
41.68.2.1	AS24835 Vodafone Data	`4.84ms` from Cairo, EG
70.65.226.1	AS6327 Shaw Communications Inc.	`7.55ms` from Calgary, CA
58.20.53.1	AS4837 CHINA UNICOM China169 Backbone	`2.36ms` from Changsha, CN
125.68.56.33	AS4134 CHINANET-BACKBONE	`7.73ms` from Chengdu, CN
184.164.28.1	AS13428 Surf Air Wireless, LLC	`0.44ms` from Chicago, US
207.250.59.1	AS30162 Ethoplex, LLC	`3.15ms` from Chicago, US
98.46.82.1	AS7922 Comcast Cable Communications, LLC	`0.54ms` from Chicago, US
124.162.200.1	AS4837 CHINA UNICOM China169 Backbone	`5.68ms` from Chongqing, CN
80.162.34.1	AS3292 TDC Holding A/S	`4.14ms` from Copenhagen, DK

Traceroute

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

traceroute -a -n -q1 -f5 -m14 210.102.221.27

traceroute to 210.102.221.27 (210.102.221.27): 14 hops max, 52 byte packets

5 [AS6939] 64.71.165.22 1.056 ms

6 [AS4766] 112.174.87.97 153.006 ms

7 [AS4766] 112.174.91.121 126.656 ms

8 [AS4766] 112.174.47.134 138.76 ms

9 *

10 *

11 [AS4766] 221.163.99.130 133.909 ms

12 *

13 *

14 *

Measurement taken from

IPinfo ProbeNet in Fremont, 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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