203.250.76.0/24

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

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
24.126.107.216 AS7922 Comcast Cable Communications, LLC 7.32ms from Ashburn, US
24.127.242.120 AS7922 Comcast Cable Communications, LLC 7.88ms from Flint, US
93.216.122.232 AS3320 Deutsche Telekom AG 2.95ms from Hamburg, DE
81.133.107.152 AS2856 British Telecommunications PLC 4.28ms from London, GB
217.58.44.104 AS3269 Telecom Italia S.p.A. 0.92ms from Milan, IT
172.121.67.168 AS214238 HOST TELECOM LTD 0.12ms from Secaucus, US
115.85.148.40 AS10135 EASPNET Inc. 0.59ms from Taipei, TW
102.176.109.56 AS29614 Ghana Telecommunications Company Limited 3.82ms from Accra, GH
84.80.75.104 AS1136 KPN B.V. 1.35ms from Amsterdam, NL
167.114.203.184 AS16276 OVH SAS 0.07ms from Beauharnois, CA
44.251.239.104 AS16509 Amazon.com, Inc. 0.56ms from Boardman, US
73.100.148.72 AS7922 Comcast Cable Communications, LLC 4.36ms from Boston, US
73.11.2.152 AS7922 Comcast Cable Communications, LLC 7.54ms from Portland, US
177.102.220.104 AS27699 TELEFÔNICA BRASIL S.A 1.33ms from Sao Paulo, BR
211.248.245.104 AS4766 Korea Telecom 1.13ms from Seoul, KR
116.198.20.24 AS23724 IDC, China Telecommunications Corporation 2.78ms from Tianjin, CN
105.105.192.216 AS36947 Telecom Algeria 13.99ms from Algiers, DZ
52.233.207.216 AS8075 Microsoft Corporation 0.28ms from Amsterdam, NL
172.211.35.120 AS8075 Microsoft Corporation 0.28ms from Amsterdam, NL
45.237.45.56 AS266814 Masternet Telecomunicaciones 6.44ms from Asuncion, PY
187.64.213.104 AS28573 Claro NXT Telecomunicacoes Ltda 14.22ms from Fortaleza, BR
36.249.195.168 AS4837 CHINA UNICOM China169 Backbone 10.15ms from Fuzhou, CN
58.42.223.200 AS4134 CHINANET-BACKBONE 3.91ms from Guiyang, CN
88.115.221.104 AS719 Elisa Oyj 0.75ms from Helsinki, FI
5.58.43.152 AS16223 MAXNET TELECOM, LTD 5.56ms from Kyiv, UA

Traceroute

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

$
traceroute -a -n -q1 -m9 203.250.76.129
traceroute to 203.250.76.129 (203.250.76.129): 9 hops max, 52 byte packets
1 [AS8648] 212.57.37.1 0.569 ms
2 *
3 *
4 *
5 *
6 [] 62.69.146.3 7.841 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Leipzig, DE
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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