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

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

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

IP Address	ASN	Details
210.106.87.119	AS4766 Korea Telecom	`4.41ms` from Seoul, KR
210.106.85.237	AS4766 Korea Telecom	`4.44ms` from Seoul, KR
210.106.86.155	AS4766 Korea Telecom	`3.42ms` from Seoul, KR
210.106.83.213	AS4766 Korea Telecom	`3.84ms` from Seoul, KR
210.106.80.99	AS4766 Korea Telecom	`3.56ms` from Seoul, KR
210.106.81.146	AS4766 Korea Telecom	`4.71ms` from Seoul, KR
210.106.82.247	AS4766 Korea Telecom	`3.74ms` from Seoul, KR
210.106.84.244	AS4766 Korea Telecom	`3.76ms` 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
50.170.237.85	AS7922 Comcast Cable Communications, LLC	`1.25ms` from Boston, US
193.224.195.5	AS1955 KIFU (Governmental Info Tech Development Agency)	`7.49ms` from Budapest, HU
174.0.27.181	AS6327 Shaw Communications	`5.93ms` from Calgary, CA
34.27.69.197	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
45.229.118.5	AS267116 NETMANIA TELECOMUNICAÇÕES LTDA	`12.81ms` from Fortaleza, BR
83.248.159.117	AS1257 Tele2 Sverige AB	`3.18ms` from Goeteborg, SE
219.135.19.149	AS4134 CHINANET-BACKBONE	`2.73ms` from Guangzhou, CN
108.215.207.117	AS7018 AT&T Enterprises, LLC	`17.52ms` from Miami, US
91.80.129.117	AS30722 Vodafone Italia S.p.A.	`16.28ms` from Milan, IT
88.101.228.165	AS5610 O2 Czech Republic, a.s.	`3.71ms` from Prague, CZ
178.35.251.213	AS12389 PJSC Rostelecom	`13.90ms` from Tbilisi, GE
3.33.149.197	AS16509 Amazon.com, Inc.	`0.04ms` from Bangkok, TH
15.240.22.165	AS16509 Amazon.com, Inc.	`0.15ms` from Cape Town, ZA
65.28.33.181	AS10796 Charter Communications Inc	`7.27ms` from Chicago, US
3.128.204.197	AS16509 Amazon.com, Inc.	`0.13ms` from Columbus, US
118.179.40.5	AS23956 AmberIT Limited	`0.48ms` from Dhaka, BD
34.253.143.117	AS16509 Amazon.com, Inc.	`0.15ms` from Dublin, IE
4.15.3.5	AS3356 Level 3 Parent, LLC	`0.67ms` from Houston, US
187.60.82.133	AS28220 Alares Cabo Servicos de Telecomunicacoes S.A.	`3.20ms` from Joao Pessoa, BR
206.231.224.21	AS3257 GTT Communications Inc.	`0.49ms` from New York City, US
64.19.139.85	AS7078 Monmouth Internet Corp	`1.23ms` from New York City, US
98.15.87.197	AS12271 Charter Communications Inc	`4.28ms` from Piscataway, US
70.35.132.5	AS18895 Nustream Communications	`0.32ms` from San Juan, PR
192.140.47.133	AS262645 BrasilNET Telecomunicações do Parana LTDA	`7.49ms` from Sao Paulo, BR
115.141.165.21	AS17858 LG POWERCOMM	`2.00ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 210.106.82.247

traceroute to 210.106.82.247 (210.106.82.247): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.63 0.072 ms

2 [AS4766] 218.145.32.254 0.605 ms

3 *

4 *

5 [AS4766] 112.174.101.14 4.572 ms

6 [AS4766] 112.188.144.134 3.454 ms

7 *

8 [AS4766] 210.106.82.247 3.658 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On November 28th 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.

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