203.250.65.0/24

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
82.78.203.24 AS8708 DIGI ROMANIA S.A. 0.74ms from Bucharest, RO
104.155.144.104 AS396982 Google LLC 0.12ms from Council Bluffs, US
23.121.37.216 AS7018 AT&T Enterprises, LLC 10.62ms from Miami, US
109.168.191.24 AS12389 PJSC Rostelecom 17.61ms from Moscow, RU
218.71.36.152 AS4134 CHINANET-BACKBONE 8.13ms from Ningbo, CN
186.179.126.136 AS18809 Cable Onda 9.34ms from Panama, PA
174.54.238.56 AS7922 Comcast Cable Communications, LLC 17.29ms from Reston, US
59.86.248.184 AS17839 LG HelloVision Corp. 2.20ms from Seoul, KR
125.45.95.72 AS4837 CHINA UNICOM China169 Backbone 3.64ms from Zhengzhou, CN
152.44.58.248 AS12208 TruVista Communications 4.58ms from Atlanta, US
223.206.62.56 AS45758 Triple T Broadband Public Company Limited 2.85ms from Bangkok, TH
16.28.97.216 AS16509 Amazon.com, Inc. 0.16ms from Cape Town, ZA
175.16.133.88 AS4837 CHINA UNICOM China169 Backbone 3.53ms from Changchun, CN
62.91.173.56 AS20686 Bisping & Bisping GmbH & Co KG 4.02ms from Frankfurt am Main, DE
180.87.214.216 AS136907 HUAWEI CLOUDS 1.16ms from Hong Kong, HK
16.163.225.88 AS16509 Amazon.com, Inc. 0.14ms from Hong Kong, HK
174.74.79.40 AS22773 Cox Communications Inc. 8.42ms from Kansas City, US
86.149.39.88 AS2856 British Telecommunications PLC 5.32ms from London, GB
204.1.109.8 AS2914 NTT America, Inc. 0.23ms from Los Angeles, US
217.67.73.40 AS2914 NTT America, Inc. 0.27ms from Paris, FR
86.217.170.104 AS3215 Orange S.A. 9.19ms from Paris, FR
210.117.87.168 AS9318 SK Broadband Co Ltd 3.43ms from Seoul, KR
49.112.85.136 AS4134 CHINANET-BACKBONE 9.12ms from UEruemqi, CN
77.116.147.72 AS25255 ==> TELE2 AUSTRIA <== 9.11ms from Vienna, AT
79.191.70.152 AS5617 Orange Polska Spolka Akcyjna 2.07ms from Warsaw, PL

Traceroute

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

$
traceroute -a -n -q1 -f2 -m9 203.250.65.82
traceroute to 203.250.65.82 (203.250.65.82): 9 hops max, 52 byte packets
2 [AS3356] 8.242.29.177 0.716 ms
3 *
4 [AS3356] 4.68.37.206 176.717 ms
5 [AS4766] 112.174.88.249 446.654 ms
6 [AS4766] 112.174.91.41 305.956 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Porto Alegre, BR
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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