203.250.80.0/24

AS55618 · UNIVERSITY OF ULSAN

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Summary

Country	South Korea
Domain	kren.kr
ASN	AS55618
Registry	APNIC
ID	KREN

WHOIS Details

inetnum:        203.250.64.0 - 203.250.95.255
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:  2017-02-02T04:55:33Z
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:        203.250.64.0 - 203.250.95.255
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 203.250.0.0/16

Range	ASN	Company	Num of IPs
203.250.0.0/19	AS1237	KISTI	8,192
203.250.120.0/21	AS9708	Pukyong National University	2,048
203.250.160.0/21	AS1237	KISTI	2,048
203.250.188.0/22	AS9982	Pai Chai University	1,024
203.250.168.0/22	AS17595	Korea Institute of Nuclear Safety	1,024
203.250.148.0/23	AS9769	Sejong University	512
203.250.111.0/24	AS55589	Korea Institute of Industrial Technology	256
203.250.183.0/24	AS1237	KRISO	256
203.250.182.0/24	AS1237	KRISO	256

Hosted domains

There are no domains currently hosted on this ASN.

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

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
171.214.2.200	AS38283 CHINANET SiChuan Telecom Internet Data Center	`1.73ms` from Chengdu, CN
27.156.159.200	AS4134 CHINANET-BACKBONE	`3.12ms` from Fuzhou, CN
86.1.90.200	AS5089 Virgin Media Limited	`11.30ms` from London, GB
88.16.217.216	AS3352 TELEFONICA DE ESPANA S.A.U.	`12.41ms` from Madrid, ES
84.65.169.104	AS5378 Vodafone Limited	`3.56ms` from Manchester, GB
73.65.127.232	AS7922 Comcast Cable Communications, LLC	`2.63ms` from Minneapolis, US
180.24.68.200	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.12ms` from Osaka, JP
46.229.115.232	AS56450 Alberon Letohrad s.r.o	`3.47ms` from Prague, CZ
190.155.235.72	AS14522 SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC)	`3.61ms` from Quito, EC
52.71.43.56	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
189.145.50.8	AS8151 UNINET	`11.18ms` from Santiago de Queretaro, MX
186.6.171.184	AS6400 Compañía Dominicana de Teléfonos S. A.	`2.89ms` from Santo Domingo, DO
121.144.191.136	AS4766 Korea Telecom	`6.33ms` from Seoul, KR
119.18.82.8	AS9770 LG HelloVision Corp.	`5.34ms` from Seoul, KR
69.158.104.136	AS577 Bell Canada	`1.45ms` from Toronto, CA
78.31.136.72	AS44124 Rybnet Sp. z o.o. Sp. k.	`3.93ms` from Wrocław, PL
37.148.207.40	AS21499 Host Europe GmbH	`3.31ms` from Frankfurt am Main, DE
36.249.121.136	AS4837 CHINA UNICOM China169 Backbone	`7.98ms` from Fuzhou, CN
78.82.127.40	AS8434 Telenor Sverige AB	`1.89ms` from Goeteborg, SE
91.96.161.24	AS9145 EWE TEL GmbH	`10.04ms` from Hamburg, DE
14.190.64.104	AS45899 VNPT Corp	`1.74ms` from Hanoi, VN
151.40.188.168	AS1267 WIND TRE S.P.A.	`8.53ms` from Milan, IT
79.7.197.104	AS3269 Telecom Italia S.p.A.	`7.87ms` from Milan, IT
91.9.128.104	AS3320 Deutsche Telekom AG	`4.59ms` from Nuernberg, DE
71.238.75.248	AS7922 Comcast Cable Communications, LLC	`5.27ms` from Portland, US

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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