210.106.80.0/21

AS4766 · Korea Telecom

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Summary

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

WHOIS Details

inetnum:        210.106.64.0 - 210.106.95.255
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:        9, Jinheung-gil, Naju-si, Jeollanam-do
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2020-04-09
mnt-by:         MNT-KRNIC-AP
last-modified:  2025-09-04T01:00:01Z
source:         APNIC

person:         IP Manager
address:        57 Daehak-ro, Jongno-gu, Seoul
country:        KR
phone:          +82-2-882-5363
e-mail:         [email protected]
nic-hdl:        IM70-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2025-11-17T00:10:02Z
source:         APNIC

inetnum:        210.106.64.0 - 210.106.95.255
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
changed:        [email protected] 20240912
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.
source:         KRNIC

person:         IP Manager
address:        57 Daehak-ro, Jongno-gu, Seoul
address:        1
country:        KR
phone:          +82-2-882-5363
e-mail:         [email protected]
nic-hdl:        IA142-KR
mnt-by:         MNT-KRNIC-AP
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.
source:         KRNIC

person:         IP Manager
address:        57 Daehak-ro, Jongno-gu, Seoul
address:        1
country:        KR
phone:          +82-2-882-5363
e-mail:         [email protected]
nic-hdl:        IM142-KR
mnt-by:         MNT-KRNIC-AP
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.
source:         KRNIC

Nearby Ranges

BGP prefixes that overlap with 210.106.0.0/16

Range	ASN	Company	Num of IPs
210.106.128.0/18	AS4766	Korea Telecom	16,384
210.106.224.0/19	AS3786	LG DACOM Corporation	8,192
210.106.192.0/19	AS10036	DLIVE	8,192
210.106.78.0/24	AS10053	Yeonsung University	256
210.106.79.0/24	AS10053	Yeonsung University	256
210.106.88.0/24	AS9318	Daekyeung College	256
210.106.89.0/24	AS9318	Daekyeung College	256
210.106.90.0/24	AS9318	Daekyeung College	256
210.106.91.0/24	AS9318	Daekyeung College	256
210.106.92.0/24	AS9318	Daekyeung College	256
210.106.93.0/24	AS9318	Daekyeung College	256
210.106.94.0/24	AS9318	Daekyeung College	256
210.106.95.0/24	AS9318	Daekyeung College	256
210.106.76.0/24	AS10053	Yeonsung University	256
210.106.77.0/24	AS10053	Yeonsung University	256

Hosted domains

There are 3 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
210.106.82.126	dslab.pw	3

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

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

IP Address	ASN	Details
210.106.81.45	AS4766 Korea Telecom	`3.86ms` from Seoul, KR
210.106.84.45	AS4766 Korea Telecom	`3.59ms` from Seoul, KR
210.106.87.249	AS4766 Korea Telecom	`4.24ms` from Seoul, KR
210.106.86.4	AS4766 Korea Telecom	`3.21ms` from Seoul, KR
210.106.80.47	AS4766 Korea Telecom	`3.47ms` from Seoul, KR
210.106.82.218	AS4766 Korea Telecom	`3.20ms` from Seoul, KR
210.106.83.130	AS4766 Korea Telecom	`3.50ms` from Seoul, KR
210.106.85.211	AS4766 Korea Telecom	`3.60ms` 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
85.72.237.53	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`13.54ms` from Athens, GR
118.247.53.229	AS4847 China Networks Inter-Exchange	`5.14ms` from Beijing, CN
50.210.114.133	AS7922 Comcast Cable Communications, LLC	`6.67ms` from Boston, US
38.109.215.5	AS174 Cogent Communications, LLC	`0.17ms` from Denver, US
31.42.142.117	AS206943 EANCENTER TELECOM LLC	`0.69ms` from Frankfurt am Main, DE
80.149.236.117	AS3320 Deutsche Telekom AG	`2.16ms` from Frankfurt am Main, DE
46.37.218.101	AS44078 Skyline Electronics Ltd.	`6.92ms` from Kyiv, UA
83.137.177.5	AS34967 DRD Communications Limited	`6.47ms` from London, GB
31.25.2.69	AS41484 NYnet Ltd	`5.55ms` from London, GB
50.75.221.101	AS12271 Charter Communications Inc	`1.43ms` from New York City, US
94.131.74.213	AS53856 NJ IX	`0.98ms` from New York City, US
61.199.81.101	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.14ms` from Osaka, JP
79.83.51.69	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`10.52ms` from Paris, FR
20.94.187.101	AS8075 Microsoft Corporation	`0.18ms` from San Antonio, US
135.84.248.5	AS55547 WOODSNET-PH	`4.46ms` from Taipei, TW
207.87.28.165	AS2828 Verizon Business	`1.88ms` from Ashburn, US
73.177.179.213	AS7922 Comcast Cable Communications, LLC	`8.51ms` from Ashburn, US
50.236.138.53	AS7922 Comcast Cable Communications, LLC	`1.09ms` from Atlanta, US
201.185.109.197	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`9.12ms` from Bogota, CO
82.141.118.181	AS719 Elisa Oyj	`0.63ms` from Helsinki, FI
125.234.137.181	AS7552 Viettel Group	`1.44ms` from Ho Chi Minh City, VN
154.18.163.37	AS135386 LinkChina Telecom Global Limited.	`3.15ms` from Hong Kong, HK
185.16.152.229	AS34967 DRD Communications Limited	`4.97ms` from London, GB
74.73.135.5	AS12271 Charter Communications Inc	`3.42ms` from New York City, US
79.243.145.245	AS3320 Deutsche Telekom AG	`7.85ms` from Nuernberg, DE

Traceroute

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

traceroute -a -n -q1 210.106.80.64

traceroute to 210.106.80.64 (210.106.80.64): 64 hops max, 52 byte packets

1 [AS15169] 74.125.251.95 1.533 ms

2 *

3 *

4 [AS4766] 112.174.8.121 32.384 ms

5 [AS4766] 112.188.144.138 32.051 ms

6 *

7 [AS4766] 210.106.80.64 31.194 ms

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On December 14th 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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