210.106.64.0/21

AS9851 · KOREA UNIVERSITY OF MEDIA ARTS

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Summary

Country	South Korea
Domain	kren.kr
ASN	AS9851
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:         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:  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:         kindman@kren.kr
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:        hostmaster@nic.or.kr 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:         kindman@kren.kr
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:         kindman@kren.kr
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 2 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
210.106.64.14	pro.ac.kr	2

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

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

IP Address	ASN	Details
210.106.64.4	AS9851 KOREA UNIVERSITY OF MEDIA ARTS	`3.75ms` from Seoul, KR
210.106.69.254	AS9851 KOREA UNIVERSITY OF MEDIA ARTS	`4.09ms` from Seoul, KR
210.106.65.18	AS9851 KOREA UNIVERSITY OF MEDIA ARTS	`3.47ms` from Seoul, KR
210.106.71.230	AS9851 KOREA UNIVERSITY OF MEDIA ARTS	`3.96ms` 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
170.199.196.21	AS200005 Akamai International B.V.	`0.24ms` from Atlanta, US
181.49.121.245	AS14080 Telmex Colombia S.A.	`0.88ms` from Bogota, CO
20.236.108.117	AS8075 Microsoft Corporation	`0.40ms` from Chicago, US
181.221.152.117	AS28573 Claro NXT Telecomunicacoes Ltda	`11.07ms` from Curitiba, BR
18.159.228.101	AS16509 Amazon.com, Inc.	`0.19ms` from Frankfurt am Main, DE
116.103.44.53	AS24086 Viettel Corporation	`10.35ms` from Ho Chi Minh City, VN
20.24.200.197	AS8075 Microsoft Corporation	`0.38ms` from Hong Kong, HK
46.45.185.165	AS42926 Radore Veri Merkezi Hizmetleri A.S.	`1.19ms` from Istanbul, TR
91.209.214.117	AS48637 JSC "UKRPOSHTA"	`0.40ms` from Kyiv, UA
216.57.134.69	AS46887 Crown Castle Fiber LLC	`0.30ms` from Miami, US
12.206.84.69	AS7018 AT&T Enterprises, LLC	`2.11ms` from Miami, US
58.213.120.165	AS4134 CHINANET-BACKBONE	`1.21ms` from Nanjing, CN
67.81.221.117	AS6128 Cablevision Systems Corp.	`8.32ms` from New York City, US
187.39.169.21	AS28573 Claro NXT Telecomunicacoes Ltda	`13.96ms` from Porto Alegre, BR
73.218.253.197	AS7922 Comcast Cable Communications, LLC	`11.34ms` from Providence, US
109.232.186.69	AS12714 PJSC MegaFon	`5.32ms` from Saint Petersburg, RU
187.172.66.101	AS8151 UNINET	`17.49ms` from Santiago de Queretaro, MX
180.167.176.133	AS4812 China Telecom (Group)	`3.60ms` from Shanghai, CN
23.38.243.37	AS32787 Akamai Technologies, Inc.	`0.35ms` from Singapore, SG
101.191.9.85	AS1221 Telstra Limited	`4.27ms` from Sydney, AU
20.23.183.85	AS8075 Microsoft Corporation	`0.25ms` from Amsterdam, NL
50.6.135.5	AS19871 Network Solutions, LLC	`1.07ms` from Atlanta, US
67.220.106.53	AS20141 Quality Technology Services, LLC	`0.28ms` from Atlanta, US
77.183.116.165	AS6805 Telefonica Germany GmbH & Co.OHG	`1.95ms` from Berlin, DE
195.227.57.197	AS8469 CANCOM Managed Services GmbH	`5.61ms` from Berlin, DE

Traceroute

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

traceroute -a -n -q1 210.106.69.254

traceroute to 210.106.69.254 (210.106.69.254): 64 hops max, 52 byte packets

1 [AS15169] 108.170.241.37 1.198 ms

2 [AS15169] 74.125.252.222 0.464 ms

3 *

4 *

5 [AS4766] 112.174.117.102 3.376 ms

6 [AS4766] 112.188.145.130 3.445 ms

7 *

8 [AS9851] 210.106.69.254 4.21 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On December 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.

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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