1. All IP Ranges
  2. 210.0.0.0/8
  3. 210.102.0.0/16
  4. AS4766  | 210.102.128.0/17

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:        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:        210.102.128.0 - 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
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

Overlapping Ranges

BGP prefixes that are contained by 210.102.128.0/17

Range ASN Company Num of IPs
210.102.133.0/24 AS9859 Chung Cheong University 256
210.102.142.0/24 AS3786 Kongju National University 256
210.102.245.0/24 AS9318 GACHON University 256
210.102.246.0/24 AS9318 GACHON University 256
210.102.247.0/24 AS9318 GACHON University 256
210.102.128.0/24 AS9859 Chung Cheong University 256
210.102.129.0/24 AS9859 Chung Cheong University 256
210.102.130.0/24 AS9859 Chung Cheong University 256
210.102.131.0/24 AS9859 Chung Cheong University 256
210.102.132.0/24 AS9859 Chung Cheong University 256
210.102.190.0/24 AS3786 CHONGSHIN UNIVERSITY 256
210.102.191.0/24 AS3786 CHONGSHIN UNIVERSITY 256
210.102.236.0/24 AS3786 Kunjang College 256
210.102.237.0/24 AS3786 Kunjang College 256
210.102.238.0/24 AS3786 Kunjang College 256
210.102.239.0/24 AS3786 Kunjang College 256
210.102.240.0/24 AS38694 CHEONGJU NATIONAL UNIVERSITY OF EDUCATION 256
210.102.241.0/24 AS38694 CHEONGJU NATIONAL UNIVERSITY OF EDUCATION 256
210.102.242.0/24 AS38694 CHEONGJU NATIONAL UNIVERSITY OF EDUCATION 256
210.102.243.0/24 AS38694 CHEONGJU NATIONAL UNIVERSITY OF EDUCATION 256
210.102.226.0/24 AS46012 Induk Institute Of Technology 256
210.102.227.0/24 AS46012 Induk Institute Of Technology 256
210.102.228.0/24 AS46012 Induk Institute Of Technology 256
210.102.229.0/24 AS46012 Induk Institute Of Technology 256
210.102.230.0/24 AS46012 Induk Institute Of Technology 256
210.102.231.0/24 AS46012 Induk Institute Of Technology 256
210.102.175.0/24 AS4766 CHOSUN NURSING COLLEGE 256
210.102.248.0/24 AS4766 CHUNGBUK PROVINCIAL UNIVERSITY OF SCIENCE & TECHNOLOGY 256
210.102.249.0/24 AS4766 CHUNGBUK PROVINCIAL UNIVERSITY OF SCIENCE & TECHNOLOGY 256
210.102.250.0/24 AS4766 CHUNGBUK PROVINCIAL UNIVERSITY OF SCIENCE & TECHNOLOGY 256
210.102.251.0/24 AS4766 CHUNGBUK PROVINCIAL UNIVERSITY OF SCIENCE & TECHNOLOGY 256
210.102.176.0/24 AS9318 GACHON University 256
210.102.177.0/24 AS9318 GACHON University 256
210.102.178.0/24 AS9318 GACHON University 256
210.102.179.0/24 AS9318 GACHON University 256
210.102.180.0/24 AS9318 GACHON University 256
210.102.181.0/24 AS9318 GACHON University 256
210.102.182.0/24 AS9318 GACHON University 256
210.102.183.0/24 AS9318 GACHON University 256
210.102.184.0/24 AS9318 GACHON University 256
210.102.185.0/24 AS9318 GACHON University 256
210.102.186.0/24 AS9318 GACHON University 256
210.102.187.0/24 AS9318 GACHON University 256
210.102.192.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.193.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.194.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.195.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.196.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.197.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.198.0/24 AS9318 DANKOOK UNIVERSITY 256

Nearby Ranges

BGP prefixes that overlap with 210.102.0.0/16

Range ASN Company Num of IPs
210.102.0.0/19 AS4663 ELIMNET, INC. 8,192
210.102.32.0/19 AS3786 LG DACOM Corporation 8,192
210.102.64.0/19 AS7557 Korea Trade Network 8,192
210.102.140.0/23 AS3786 Kongju National University 512
210.102.236.0/24 AS3786 Kunjang College 256
210.102.237.0/24 AS3786 Kunjang College 256
210.102.238.0/24 AS3786 Kunjang College 256
210.102.239.0/24 AS3786 Kunjang College 256
210.102.240.0/24 AS38694 CHEONGJU NATIONAL UNIVERSITY OF EDUCATION 256
210.102.241.0/24 AS38694 CHEONGJU NATIONAL UNIVERSITY OF EDUCATION 256
210.102.242.0/24 AS38694 CHEONGJU NATIONAL UNIVERSITY OF EDUCATION 256
210.102.243.0/24 AS38694 CHEONGJU NATIONAL UNIVERSITY OF EDUCATION 256
210.102.226.0/24 AS46012 Induk Institute Of Technology 256
210.102.227.0/24 AS46012 Induk Institute Of Technology 256
210.102.228.0/24 AS46012 Induk Institute Of Technology 256
210.102.229.0/24 AS46012 Induk Institute Of Technology 256
210.102.230.0/24 AS46012 Induk Institute Of Technology 256
210.102.231.0/24 AS46012 Induk Institute Of Technology 256
210.102.16.0/24 AS4663 ELIMNET 256
210.102.175.0/24 AS4766 CHOSUN NURSING COLLEGE 256
210.102.248.0/24 AS4766 CHUNGBUK PROVINCIAL UNIVERSITY OF SCIENCE & TECHNOLOGY 256
210.102.249.0/24 AS4766 CHUNGBUK PROVINCIAL UNIVERSITY OF SCIENCE & TECHNOLOGY 256
210.102.250.0/24 AS4766 CHUNGBUK PROVINCIAL UNIVERSITY OF SCIENCE & TECHNOLOGY 256
210.102.251.0/24 AS4766 CHUNGBUK PROVINCIAL UNIVERSITY OF SCIENCE & TECHNOLOGY 256
210.102.176.0/24 AS9318 GACHON University 256
210.102.177.0/24 AS9318 GACHON University 256
210.102.178.0/24 AS9318 GACHON University 256
210.102.179.0/24 AS9318 GACHON University 256
210.102.180.0/24 AS9318 GACHON University 256
210.102.181.0/24 AS9318 GACHON University 256
210.102.182.0/24 AS9318 GACHON University 256
210.102.183.0/24 AS9318 GACHON University 256
210.102.184.0/24 AS9318 GACHON University 256
210.102.185.0/24 AS9318 GACHON University 256
210.102.186.0/24 AS9318 GACHON University 256
210.102.187.0/24 AS9318 GACHON University 256
210.102.192.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.193.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.194.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.195.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.196.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.197.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.198.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.199.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.200.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.201.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.202.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.203.0/24 AS9318 DANKOOK UNIVERSITY 256
210.102.204.0/24 AS9318 DANKOOK UNIVERSITY 256

Hosted domains

There are 20 domain names hosted across 17 IP addresses on this ASN. Checkout our API to access full domain hosting information.

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

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

IP Address ASN Details
210.102.153.82 AS55618 UNIVERSITY OF ULSAN 7.39ms from Seoul, KR
210.102.254.7 AS4766 Korea Telecom 1.74ms from Seoul, KR
210.102.253.4 AS4766 Korea Telecom 1.51ms from Seoul, KR
210.102.154.55 AS55618 UNIVERSITY OF ULSAN 7.71ms from Dongnae, KR
210.102.227.183 AS46012 Induk University 1.61ms from Seoul, KR
210.102.199.36 AS9318 SK Broadband Co Ltd 3.52ms from Seoul, KR
210.102.188.45 AS3786 LG DACOM Corporation 1.65ms from Seoul, KR
210.102.228.184 AS46012 Induk University 1.49ms from Seoul, KR
210.102.136.124 AS4766 Korea Telecom 5.35ms from Seoul, KR
210.102.252.46 AS4766 Korea Telecom 1.24ms from Seoul, KR
210.102.190.251 AS3786 LG DACOM Corporation 1.30ms from Seoul, KR
210.102.148.252 AS3786 LG DACOM Corporation 2.35ms from Seoul, KR
210.102.229.71 AS46012 Induk University 1.42ms from Seoul, KR
210.102.138.149 AS4766 Korea Telecom 3.75ms from Seoul, KR
210.102.170.69 AS55618 UNIVERSITY OF ULSAN 6.76ms from Seoul, KR
210.102.241.58 AS38694 CHEONGJU NATIONAL UNIVERSITY OF EDCATION 7.54ms from Seoul, KR
210.102.139.23 AS4766 Korea Telecom 3.49ms from Seoul, KR
210.102.175.143 AS4766 Korea Telecom 4.88ms from Seoul, KR
210.102.248.97 AS4766 Korea Telecom 4.15ms from Seoul, KR
210.102.216.129 AS55618 UNIVERSITY OF ULSAN 6.72ms from Seoul, KR
210.102.151.183 AS3786 LG DACOM Corporation 1.42ms from Seoul, KR
210.102.144.14 AS3786 LG DACOM Corporation 1.69ms from Seoul, KR
210.102.164.241 AS55618 UNIVERSITY OF ULSAN 8.11ms from Seoul, KR
210.102.210.180 AS55618 UNIVERSITY OF ULSAN 7.61ms from Seoul, KR
210.102.219.251 AS55618 UNIVERSITY OF ULSAN 7.14ms 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
91.195.65.1 AS42707 e-Quest IT-diensten B.V. 2.53ms from Amsterdam, NL
96.103.116.177 AS7922 Comcast Cable Communications, LLC 1.16ms from Ashburn, US
173.242.252.225 AS12261 DTC Communications, Inc. 6.46ms from Atlanta, US
66.44.246.1 AS33647 Yadkin Valley Telephone 11.24ms from Atlanta, US
32.48.219.113 AS7018 AT&T Enterprises, LLC 16.52ms from Atlanta, US
111.161.158.97 AS4837 CHINA UNICOM China169 Backbone 5.68ms from Beijing, CN
72.12.65.193 AS21547 FirstLight Fiber, Inc. 10.15ms from Boston, US
84.197.180.1 AS6848 Telenet BV 3.25ms from Brussels, BE
109.96.136.1 AS9050 Orange Romania S.A. 0.98ms from Bucharest, RO
190.97.57.193 AS27833 BVNET S.A. 8.05ms from Buenos Aires, AR
173.21.32.1 AS30036 Mediacom Communications Corp 3.81ms from Chicago, US
58.84.231.129 AS24111 nzwireless LTD 5.59ms from Christchurch, NZ
74.113.169.1 AS17306 JAB Wireless, INC. 4.10ms from Dallas, US
148.66.37.1 AS396177 Jump Fiber 12.70ms from Dallas, US
14.142.139.97 AS4755 TATA Communications formerly VSNL is Leading ISP 0.65ms from Delhi, IN
66.129.48.129 AS17306 JAB Wireless, INC. 3.63ms from Denver, US
64.159.159.65 AS3356 Level 3 Parent, LLC 0.36ms from Denver, US
174.136.56.1 AS33494 IHNetworks, LLC 0.41ms from Draper, US
38.15.178.1 AS399930 Cloudstar 5.48ms from Edmonton, CA
65.254.147.1 AS13638 Metalink Technologies, Inc. 12.96ms from Flint, US
90.80.41.1 AS3215 Orange S.A. 3.31ms from Frankfurt am Main, DE
36.248.0.113 AS4837 CHINA UNICOM China169 Backbone 2.68ms from Fuzhou, CN
148.230.240.129 AS22884 TOTAL PLAY TELECOMUNICACIONES SA DE CV 0.27ms from Guadalajara, MX
218.19.174.1 AS4134 CHINANET-BACKBONE 3.87ms from Guangzhou, CN
61.18.207.1 AS9908 HK Cable TV Ltd 1.50ms from Hong Kong, HK

Traceroute

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

$
traceroute -a -n -q1 -m5 210.102.132.102
traceroute to 210.102.132.102 (210.102.132.102): 5 hops max, 52 byte packets
2 [] 206.123.7.25 0.546 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Jacksonville, US
On

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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