203.250.86.0/24

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
24.57.125.152 AS7992 Cogeco Connexion Inc. 11.89ms from Buffalo, US
41.18.138.56 AS29975 Vodacom 10.85ms from Centurion, ZA
187.173.249.24 AS8151 UNINET 8.48ms from Guadalajara, MX
156.230.85.152 AS136907 HUAWEI CLOUDS 1.18ms from Hong Kong, HK
95.154.167.72 AS43714 Production co-operative Economic-legal laboratory 2.67ms from Moscow, RU
97.244.0.152 AS6167 Verizon Business 10.71ms from Newark, US
44.207.224.88 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
5.19.193.216 AS41733 JSC ER-Telecom Holding 3.89ms from Saint Petersburg, RU
223.26.225.184 AS38690 HyosungITX 3.89ms from Seoul, KR
119.201.154.24 AS4766 Korea Telecom 6.65ms from Seoul, KR
14.94.76.24 AS4766 Korea Telecom 1.40ms from Seoul, KR
54.64.144.56 AS16509 Amazon.com, Inc. 0.18ms from Tokyo, JP
186.91.58.88 AS8048 CANTV Servicios, Venezuela 16.73ms from Willemstad, CW
209.81.95.8 AS63182 RapidScale, Inc 0.58ms from Ashburn, US
94.68.219.72 AS6799 Ote SA (Hellenic Telecommunications Organisation) 8.59ms from Athens, GR
197.87.186.88 AS20011 Dimension Data 2.91ms from Cape Town, ZA
115.68.17.248 AS38700 SMILESERV 1.16ms from Incheon, KR
182.186.69.216 AS17557 Pakistan Telecommunication Company Limited 17.78ms from Lahore, PK
82.179.188.104 AS31575 National Research University of Electronic Technology 1.88ms from Moscow, RU
43.247.168.200 AS16552 Tiggee LLC 0.43ms from Mumbai, IN
169.236.175.88 AS22323 University of California, Merced 6.55ms from San Jose, US
211.47.227.8 AS17877 KX NexG Co., LTD 3.79ms from Seoul, KR
47.117.54.200 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.45ms from Shanghai, CN
113.232.121.152 AS4837 CHINA UNICOM China169 Backbone 7.76ms from Tieling, CN
175.163.139.136 AS4837 CHINA UNICOM China169 Backbone 8.27ms from Tieling, CN

Traceroute

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

$
traceroute -a -n -q1 -f4 -m7 203.250.86.1
traceroute to 203.250.86.1 (203.250.86.1): 7 hops max, 52 byte packets
4 [AS21928] 100.199.0.57 0.072 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Liuzhou, CN
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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