1. All IP Ranges
  2. 203.0.0.0/8
  3. 203.234.0.0/16
  4. AS18035  | 203.234.72.0/21

203.234.72.0/21

AS18035  ·  HANSEO UNIVERSITY

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Summary

Country South Korea
Domain kren.kr
ASN AS18035
Registry APNIC
ID KREN

WHOIS Details

inetnum:        203.234.64.0 - 203.234.95.255
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:  2017-02-02T04:55:24Z
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:        203.234.64.0 - 203.234.95.255
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 203.234.0.0/16

Range ASN Company Num of IPs
203.234.48.0/20 AS9954 Kunsan National University 4,096
203.234.92.0/22 AS18023 Korea Maritime University(KMU) 1,024
203.234.126.0/23 AS3786 Hanseo University 512
203.234.118.0/24 AS3786 SHINGU COLLEGE 256
203.234.35.0/24 AS3786 Shingu College 256
203.234.68.0/24 AS3786 seoulbokeondaehak 256
203.234.69.0/24 AS3786 seoulbokeondaehak 256
203.234.70.0/24 AS3786 seoulbokeondaehak 256
203.234.71.0/24 AS3786 seoulbokeondaehak 256
203.234.34.0/24 AS4766 KOREA NATIONAL SPORT UNIVERSITY 256
203.234.41.0/24 AS4766 GONGJU NATIONAL UNIVERSITY OF EDUCATION 256
203.234.64.0/24 AS4766 GYEONGIN NATIONAL UNIVERSITY OF EDUCATION 256
203.234.65.0/24 AS4766 GYEONGIN NATIONAL UNIVERSITY OF EDUCATION 256
203.234.66.0/24 AS4766 CATHOLIC SANGJI COLLEGE 256
203.234.117.0/24 AS3786 SHINGU COLLEGE 256
203.234.116.0/24 AS3786 SHINGU COLLEGE 256

Hosted domains

There are 3 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
203.234.72.93 xn--9d0bw1iuxnfwtma.xn--3e0b707e 3

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
Read more

Pingable IPs

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

IP Address ASN Details
203.234.72.79 AS18035 HANSEO UNIVERSITY 5.33ms 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
54.211.3.197 AS14618 Amazon.com, Inc. 0.48ms from Ashburn, US
209.201.108.197 AS209 CenturyLink Communications, LLC 1.44ms from Ashburn, US
44.249.206.21 AS16509 Amazon.com, Inc. 0.15ms from Boardman, US
69.80.187.69 AS397790 Indianola Municipal Utilities 10.07ms from Chicago, US
183.66.245.101 AS4134 CHINANET-BACKBONE 1.45ms from Chongqing, CN
39.59.80.197 AS17557 Pakistan Telecommunication Company Limited 13.98ms from Islamabad, PK
196.15.161.133 AS5713 Telkom SA Ltd. 1.87ms from Johannesburg, ZA
86.191.198.85 AS2856 British Telecommunications PLC 4.30ms from London, GB
99.30.188.133 AS7018 AT&T Enterprises, LLC 19.62ms from Los Angeles, US
88.60.201.101 AS3269 Telecom Italia S.p.A. 4.73ms from Milan, IT
58.223.22.37 AS4134 CHINANET-BACKBONE 0.93ms from Nanjing, CN
24.103.255.53 AS12271 Charter Communications Inc 1.03ms from New York City, US
37.195.8.165 AS31200 Novotelecom Ltd 1.77ms from Novosibirsk, RU
75.99.154.37 AS6128 Cablevision Systems Corp. 2.81ms from Piscataway, US
88.182.24.21 AS12322 Free SAS 12.66ms from Saint-Denis, FR
73.52.172.53 AS7922 Comcast Cable Communications, LLC 4.00ms from Salt Lake City, US
112.184.163.181 AS4766 Korea Telecom 2.53ms from Seoul, KR
14.36.150.5 AS4766 Korea Telecom 0.98ms from Seoul, KR
211.178.198.53 AS9318 SK Broadband Co Ltd 0.94ms from Seoul, KR
61.68.86.85 AS7545 TPG Telecom Limited 1.08ms from Sydney, AU
144.160.249.117 AS797 AT&T Services, Inc. 1.73ms from Atlanta, US
54.187.132.37 AS16509 Amazon.com, Inc. 0.21ms from Boardman, US
52.96.203.69 AS8075 Microsoft Corporation 0.34ms from Boydton, US
98.18.241.213 AS7029 Windstream Communications LLC 4.97ms from Dallas, US
164.47.98.21 AS14737 Colorado Community College and Occupational Education System 4.25ms from Denver, US

Traceroute

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

$
traceroute -a -n -q1 -m5 203.234.74.243
traceroute to 203.234.74.243 (203.234.74.243): 5 hops max, 52 byte packets
1 [AS25467] 46.183.185.1 1.842 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Skopje, MK
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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