1. All IP Ranges
  2. 203.0.0.0/8
  3. 203.246.0.0/16
  4. AS4766  | 203.246.0.0/17

203.246.0.0/17

AS4766  ·  Korea Telecom

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Summary

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

WHOIS Details

inetnum:        203.246.0.0 - 203.246.127.255
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:  2017-02-02T04:55:29Z
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:        203.246.0.0 - 203.246.127.255
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 203.246.0.0/17

Range ASN Company Num of IPs
203.246.40.0/24 AS3786 SEOUL WOMENS UNIVERSITY 256
203.246.41.0/24 AS3786 SEOUL WOMENS UNIVERSITY 256
203.246.42.0/24 AS3786 SEOUL WOMENS UNIVERSITY 256
203.246.43.0/24 AS3786 SEOUL WOMENS UNIVERSITY 256
203.246.72.0/24 AS3786 Methodist Theological Seminary 256
203.246.73.0/24 AS3786 Methodist Theological Seminary 256
203.246.96.0/24 AS46012 Induk Institute Of Technology 256
203.246.97.0/24 AS46012 Induk Institute Of Technology 256
203.246.98.0/24 AS46012 Induk Institute Of Technology 256
203.246.99.0/24 AS46012 Induk Institute Of Technology 256
203.246.46.0/24 AS4766 CHUNGKANG COLLEGE 256
203.246.74.0/24 AS4766 Hosan University 256
203.246.75.0/24 AS4766 Sungkonghoe University 256
203.246.118.0/24 AS17591 NATIONAL RESEARCH FOUNDATION OF KOREA 256
203.246.116.0/24 AS18176 KOOKMIN UNIVERSITY 256
203.246.120.0/24 AS24027 CHINJU NATIONAL UNIVERSITY OF EDUCATION 256
203.246.121.0/24 AS24027 CHINJU NATIONAL UNIVERSITY OF EDUCATION 256
203.246.122.0/24 AS24027 CHINJU NATIONAL UNIVERSITY OF EDUCATION 256
203.246.123.0/24 AS24027 CHINJU NATIONAL UNIVERSITY OF EDUCATION 256
203.246.124.0/24 AS24027 CHINJU NATIONAL UNIVERSITY OF EDUCATION 256
203.246.125.0/24 AS24027 CHINJU NATIONAL UNIVERSITY OF EDUCATION 256
203.246.126.0/24 AS24027 CHINJU NATIONAL UNIVERSITY OF EDUCATION 256
203.246.127.0/24 AS24027 CHINJU NATIONAL UNIVERSITY OF EDUCATION 256
203.246.117.0/24 AS3786 Methodist Theological Seminary 256
203.246.32.0/21 AS9318 Soongsil University 2,048

Nearby Ranges

BGP prefixes that overlap with 203.246.0.0/16

Range ASN Company Num of IPs
203.246.192.0/18 AS6619 SamsungSDS Inc. 16,384
203.246.192.0/18 AS45985 SamsungSDS Inc. 16,384
203.246.160.0/20 AS9286 KINX 4,096
203.246.32.0/21 AS9318 Soongsil University 2,048
203.246.176.0/21 AS9773 HANSOFT, INC. 2,048
203.246.124.0/24 AS24027 CHINJU NATIONAL UNIVERSITY OF EDUCATION 256
203.246.125.0/24 AS24027 CHINJU NATIONAL UNIVERSITY OF EDUCATION 256
203.246.126.0/24 AS24027 CHINJU NATIONAL UNIVERSITY OF EDUCATION 256
203.246.127.0/24 AS24027 CHINJU NATIONAL UNIVERSITY OF EDUCATION 256
203.246.117.0/24 AS3786 Methodist Theological Seminary 256
203.246.40.0/24 AS3786 SEOUL WOMENS UNIVERSITY 256
203.246.41.0/24 AS3786 SEOUL WOMENS UNIVERSITY 256
203.246.42.0/24 AS3786 SEOUL WOMENS UNIVERSITY 256
203.246.43.0/24 AS3786 SEOUL WOMENS UNIVERSITY 256
203.246.72.0/24 AS3786 Methodist Theological Seminary 256
203.246.73.0/24 AS3786 Methodist Theological Seminary 256
203.246.167.0/24 AS46003 KINX 256
203.246.96.0/24 AS46012 Induk Institute Of Technology 256
203.246.97.0/24 AS46012 Induk Institute Of Technology 256
203.246.98.0/24 AS46012 Induk Institute Of Technology 256
203.246.99.0/24 AS46012 Induk Institute Of Technology 256
203.246.46.0/24 AS4766 CHUNGKANG COLLEGE 256
203.246.74.0/24 AS4766 Hosan University 256
203.246.75.0/24 AS4766 Sungkonghoe University 256
203.246.170.0/24 AS9286 KINX 256
203.246.171.0/24 AS9286 KINX 256
203.246.173.0/24 AS9526 KINX 256
203.246.174.0/24 AS9526 KINX 256
203.246.175.0/24 AS9526 KINX 256
203.246.118.0/24 AS17591 NATIONAL RESEARCH FOUNDATION OF KOREA 256
203.246.169.0/24 AS9957 KINX 256
203.246.116.0/24 AS18176 KOOKMIN UNIVERSITY 256
203.246.120.0/24 AS24027 CHINJU NATIONAL UNIVERSITY OF EDUCATION 256
203.246.121.0/24 AS24027 CHINJU NATIONAL UNIVERSITY OF EDUCATION 256
203.246.122.0/24 AS24027 CHINJU NATIONAL UNIVERSITY OF EDUCATION 256
203.246.123.0/24 AS24027 CHINJU NATIONAL UNIVERSITY OF EDUCATION 256

Hosted domains

There are 33 domain names hosted across 29 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
203.246.83.174 seoultech.ac.kr 3
203.246.40.2 swu.seoul.kr 2
203.246.87.55 aiartsave.com 2
203.246.40.6 swu.ac.kr 2
203.246.100.75 wkhc.ac.kr 2
203.246.87.16 helloremote.kr 1
203.246.113.248 hoangandhuong.info 1
203.246.61.21 bit.ac.kr 1
203.246.61.22 bist.ac.kr 1
203.246.84.83 oksmartlab.com 1
203.246.83.239 parkjonghyuk.net 1
203.246.10.27 mit-games.kr 1
203.246.74.7 gs.ac.kr 1
203.246.84.17 samocns.kr 1
203.246.113.41 gossol.com 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

1,522 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
203.246.80.1 AS3786 LG DACOM Corporation 2.26ms from Seoul, KR
203.246.85.10 AS3786 LG DACOM Corporation 1.93ms from Seoul, KR
203.246.45.81 AS4766 Korea Telecom 2.32ms from Seoul, KR
203.246.35.205 AS9318 SK Broadband Co Ltd 2.06ms from Seoul, KR
203.246.76.1 AS18315 Sorabol College 7.27ms from Seoul, KR
203.246.34.12 AS9318 SK Broadband Co Ltd 1.75ms from Seoul, KR
203.246.106.133 AS9962 Sunchon National University 7.62ms from Seoul, KR
203.246.113.216 AS4766 Korea Telecom 2.01ms from Seoul, KR
203.246.78.1 AS18315 Sorabol College 6.47ms from Seoul, KR
203.246.86.17 AS3786 LG DACOM Corporation 2.49ms from Seoul, KR
203.246.83.93 AS3786 LG DACOM Corporation 2.19ms from Seoul, KR
203.246.63.82 AS3786 LG DACOM Corporation 7.43ms from Seoul, KR
203.246.97.144 AS46012 Induk University 1.47ms from Seoul, KR
203.246.114.242 AS18176 KOOKMIN UNIVERSITY 2.06ms from Seoul, KR
203.246.116.20 AS18176 KOOKMIN UNIVERSITY 1.88ms from Seoul, KR
203.246.33.35 AS9318 SK Broadband Co Ltd 2.00ms from Seoul, KR
203.246.37.251 AS9318 SK Broadband Co Ltd 1.68ms from Seoul, KR
203.246.56.130 AS3786 LG DACOM Corporation 7.01ms from Seoul, KR
203.246.46.45 AS4766 Korea Telecom 2.33ms from Seoul, KR
203.246.36.14 AS9318 SK Broadband Co Ltd 1.92ms from Seoul, KR
203.246.115.228 AS18176 KOOKMIN UNIVERSITY 2.00ms from Seoul, KR
203.246.120.1 AS24027 Chinju National University of Education 6.26ms from Seoul, KR
203.246.87.243 AS3786 LG DACOM Corporation 2.20ms from Seoul, KR
203.246.99.8 AS46012 Induk University 1.38ms from Seoul, KR
203.246.82.34 AS3786 LG DACOM Corporation 2.48ms 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
146.50.64.1 AS1124 Universiteit van Amsterdam 0.55ms from Amsterdam, NL
20.75.145.81 AS8075 Microsoft Corporation 0.38ms from Ashburn, US
144.249.192.1 AS19830 The Ringgold Telephone Company 3.59ms from Atlanta, US
181.55.24.1 AS10620 Telmex Colombia S.A. 15.34ms from Bogota, CO
188.81.241.1 AS3243 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 5.09ms from Braga, PT
65.190.61.225 AS11426 Charter Communications Inc 12.09ms from Charlotte, US
98.102.214.97 AS10796 Charter Communications Inc 9.86ms from Columbus, US
200.188.49.209 AS11172 Alestra, S. de R.L. de C.V. 12.43ms from Dallas, US
152.37.176.1 AS11492 CABLE ONE, INC. 15.89ms from Dallas, US
67.202.136.161 AS17306 JAB Wireless, INC. 2.70ms from Dallas, US
204.12.71.49 AS20021 Ntirety, Inc. 0.67ms from Denver, US
184.166.0.1 AS33588 Charter Communications LLC 5.28ms from Denver, US
69.11.70.1 AS803 Saskatchewan Telecommunications 19.17ms from Des Moines, US
91.72.83.225 AS15802 Emirates Integrated Telecommunications Company PJSC 6.86ms from Dubai, AE
212.18.223.193 AS8937 VSE NET GmbH 4.03ms from Frankfurt am Main, DE
117.29.163.177 AS4134 CHINANET-BACKBONE 5.58ms from Fuzhou, CN
205.251.148.17 AS11042 NETWORK TRANSIT HOLDINGS LLC 1.19ms from Houston, US
61.191.153.1 AS4134 CHINANET-BACKBONE 9.49ms from Huai'an, CN
41.74.200.1 AS37235 Mimecast South Africa 2.59ms from Johannesburg, ZA
136.32.32.1 AS16591 Google Fiber Inc. 0.46ms from Kansas City, US
221.213.11.1 AS4837 CHINA UNICOM China169 Backbone 1.93ms from Kunming, CN
218.24.3.1 AS4837 CHINA UNICOM China169 Backbone 4.12ms from Liaoyang, CN
86.189.38.113 AS2856 British Telecommunications PLC 0.87ms from London, GB
136.168.216.1 AS2152 CENIC 6.49ms from Los Angeles, US
157.241.76.177 AS16509 Amazon.com, Inc. 0.09ms from Manama, BH

Traceroute

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

$
traceroute -a -n -q1 -f4 -m17 203.246.9.61
traceroute to 203.246.9.61 (203.246.9.61): 17 hops max, 52 byte packets
4 [AS1299] 213.248.76.14 71.268 ms
5 *
6 *
7 *
8 [AS6939] 64.71.165.22 124.497 ms
9 [AS4766] 112.174.87.97 715.991 ms
10 [AS4766] 112.174.91.173 249.882 ms
11 *
12 *
13 [AS4766] 59.19.131.82 252.101 ms
14 [AS4766] 211.54.133.226 251.009 ms
15 *
16 *
17 *
Measurement taken from IPinfo ProbeNet in Dublin, IE
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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