1. All IP Ranges
  2. 203.0.0.0/8
  3. 203.237.0.0/16
  4. AS23586  | 203.237.251.0/24

203.237.251.0/24

AS23586  ·  Korean Council for University Education

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Summary

Country South Korea
Domain kren.kr
ASN AS23586
Parent Range 203.237.128.0/17
Registry APNIC
ID KREN

WHOIS Details

inetnum:        203.237.128.0 - 203.237.255.255
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:  2017-02-02T04:55:27Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        Jeollanam-do Naju-si Jinheung-gil
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:  2021-06-15T06:21:49Z
source:         APNIC

person:         IP Manager
address:        Seoul Gwanak-gu Gwanak-ro
country:        KR
phone:          +82-2-882-5363
e-mail:         kindman@kren.kr
nic-hdl:        IM70-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2024-07-09T23:56:03Z
source:         APNIC

inetnum:        203.237.128.0 - 203.237.255.255
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
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.
changed:        hostmaster@nic.or.kr
source:         KRNIC

person:         IP Manager
address:        Seoul Gwanak-gu Gwanak-ro
address:        1
country:        KR
phone:          +82-2-882-5363
e-mail:         kindman@kren.kr
nic-hdl:        IA142-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr
source:         KRNIC

person:         IP Manager
address:        Seoul Gwanak-gu Gwanak-ro
address:        1
country:        KR
phone:          +82-2-882-5363
e-mail:         kindman@kren.kr
nic-hdl:        IM142-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr
source:         KRNIC

Overlapping Ranges

BGP prefixes that contain 203.237.251.0/24

Range ASN Company Num of IPs
203.237.128.0/17 AS17614 Korean Education Network 32,768
203.237.128.0/17 AS18026 Korean Education Network 32,768
203.237.128.0/17 AS18031 Korean Education Network 32,768
203.237.128.0/17 AS18319 Korean Education Network 32,768
203.237.128.0/17 AS18329 Korean Education Network 32,768
203.237.128.0/17 AS23586 Korean Education Network 32,768
203.237.128.0/17 AS23983 Korean Education Network 32,768
203.237.128.0/17 AS3786 Korean Education Network 32,768
203.237.128.0/17 AS38694 Korean Education Network 32,768
203.237.128.0/17 AS4766 Korean Education Network 32,768
203.237.128.0/17 AS9318 Korean Education Network 32,768

Nearby Ranges

BGP prefixes that overlap with 203.237.0.0/16

Range ASN Company Num of IPs
203.237.128.0/17 AS17614 Korean Education Network 32,768
203.237.128.0/17 AS18026 Korean Education Network 32,768
203.237.128.0/17 AS18031 Korean Education Network 32,768
203.237.128.0/17 AS18319 Korean Education Network 32,768
203.237.128.0/17 AS18329 Korean Education Network 32,768
203.237.128.0/17 AS23586 Korean Education Network 32,768
203.237.128.0/17 AS23983 Korean Education Network 32,768
203.237.128.0/17 AS3786 Korean Education Network 32,768
203.237.128.0/17 AS38694 Korean Education Network 32,768
203.237.128.0/17 AS4766 Korean Education Network 32,768
203.237.128.0/17 AS9318 Korean Education Network 32,768
203.237.64.0/19 AS9778 KISTI 8,192
203.237.96.0/19 AS9754 Korean Education Network 8,192

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Pingable IPs

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

IP Address ASN Details
203.237.251.2 AS4766 Korea Telecom 1.39ms 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
91.103.16.200 AS15695 Expereo International BV 0.50ms from Amsterdam, NL
46.28.16.120 AS51309 Joint Stock Company Interfax 0.14ms from Amsterdam, NL
107.142.206.200 AS7018 AT&T Enterprises, LLC 1.74ms from Atlanta, US
71.28.53.248 AS7029 Windstream Communications LLC 3.23ms from Atlanta, US
39.62.103.136 AS17557 Pakistan Telecommunication Company Limited 19.08ms from Karachi, PK
151.64.145.120 AS1267 WIND TRE S.P.A. 2.58ms from Milan, IT
87.2.126.40 AS3269 Telecom Italia S.p.A. 4.07ms from Milan, IT
178.167.47.168 AS21453 Flex Ltd. 2.47ms from Moscow, RU
86.239.146.104 AS3215 Orange S.A. 18.94ms from Paris, FR
193.165.254.8 AS30764 PODA a.s. 0.41ms from Prague, CZ
64.173.201.152 AS7018 AT&T Enterprises, LLC 5.93ms from Redding, US
43.200.209.168 AS16509 Amazon.com, Inc. 0.20ms from Seoul, KR
106.8.203.8 AS4134 CHINANET-BACKBONE 7.92ms from Shijiazhuang, CN
82.142.130.56 AS3216 PJSC "Vimpelcom" 0.66ms from Yekaterinburg, RU
18.188.197.72 AS16509 Amazon.com, Inc. 0.15ms from Columbus, US
47.220.15.248 AS19108 Optimum 4.43ms from Dallas, US
43.139.83.120 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.99ms from Guangzhou, CN
59.188.174.104 AS9269 Hong Kong Broadband Network Ltd. 0.84ms from Hong Kong, HK
20.0.104.216 AS8075 Microsoft Corporation 0.21ms from London, GB
157.241.15.232 AS16509 Amazon.com, Inc. 0.08ms from Manama, BH
167.57.197.104 AS6057 Administracion Nacional de Telecomunicaciones 1.70ms from Montevideo, UY
118.195.234.248 AS45090 Shenzhen Tencent Computer Systems Company Limited 0.95ms from Nanjing, CN
24.190.23.248 AS6128 Cablevision Systems Corp. 9.69ms from New York City, US
18.230.226.136 AS16509 Amazon.com, Inc. 0.14ms from Osasco, BR
13.215.223.24 AS16509 Amazon.com, Inc. 0.13ms from Singapore, SG

Traceroute

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

$
traceroute -a -n -q1 -f2 203.237.251.3
traceroute to 203.237.251.3 (203.237.251.3): 64 hops max, 52 byte packets
2 [AS6762] 195.22.198.24 1.393 ms
3 [AS6762] 195.22.195.25 178.434 ms
4 [AS6762] 195.22.206.145 178.304 ms
5 [AS4766] 112.174.87.13 295.422 ms
6 [AS4766] 112.174.86.237 294.113 ms
7 [AS4766] 112.174.49.74 298.777 ms
8 *
9 [AS4766] 168.126.233.62 300.881 ms
10 [AS23586] 203.237.251.3 314.45 ms
Measurement taken from IPinfo ProbeNet in Palermo, IT
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.

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