203.253.136.0/22

AS1237  ·  KISTI

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Summary

Country South Korea
Domain kreonet.net
ASN AS1237
Registry APNIC
ID KREONET

WHOIS Details

inetnum:        203.253.136.0 - 203.253.143.255
netname:        KREONet
descr:          KISTI
country:        KR
admin-c:        IM702-AP
tech-c:         IM702-AP
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2025-11-03T07:48:09Z
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:        Daejeon Yuseong-gu Daehak-ro 245
country:        KR
phone:          +82-42-869-0707
e-mail:         noc@kreonet.net
nic-hdl:        IM702-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2022-01-11T12:18:02Z
source:         APNIC

inetnum:        203.253.136.0 - 203.253.143.255
netname:        KREONet-KR
descr:          KISTI
country:        KR
admin-c:        IA18-KR
tech-c:         IM18-KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
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:        Daejeon Yuseong-gu Daehak-ro 245
address:        KISTI
country:        KR
phone:          +82-42-869-0707
e-mail:         noc@kreonet.net
nic-hdl:        IA18-KR
mnt-by:         MNT-KRNIC-AP
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:        Daejeon Yuseong-gu Daehak-ro 245
address:        KISTI
country:        KR
phone:          +82-42-869-0707
e-mail:         noc@kreonet.net
nic-hdl:        IM18-KR
mnt-by:         MNT-KRNIC-AP
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

Nearby Ranges

BGP prefixes that overlap with 203.253.0.0/16

Range ASN Company Num of IPs
203.253.192.0/19 AS18026 JEJU NATIONAL UNIVERSITY 8,192
203.253.96.0/20 AS1237 KISTI 4,096
203.253.64.0/20 AS9572 Hankuk University of Foreign Studies Computer Center 4,096
203.253.80.0/20 AS9572 Hankuk University of Foreign Studies Computer Center 4,096
203.253.32.0/20 AS4766 KONGJU NATIONAL UNIVERSITY 4,096
203.253.240.0/21 AS9637 Korea Basic Science Institute 2,048
203.253.128.0/22 AS4766 Korea Telecom 1,024
203.253.132.0/23 AS2385 KISTI 512
203.253.134.0/24 AS2385 KISTI 256
203.253.236.0/24 AS1237 KISTI 256
203.253.232.0/24 AS17576 National Research Foundation of Korea 256
203.253.135.0/24 AS1237 KISTI 256
203.253.237.0/24 AS9275 Korea Astronomy Observatory 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

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

IP Address ASN Details
203.253.137.161 AS1237 KISTI 3.46ms 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
136.185.96.182 AS24560 Bharti Airtel Ltd., Telemedia Services 3.09ms from Ahmedabad, IN
71.163.178.22 AS701 Verizon Business 3.18ms from Ashburn, US
140.143.32.214 AS45090 Shenzhen Tencent Computer Systems Company Limited 4.80ms from Beijing, CN
170.63.214.22 AS6527 Commonwealth of Massachusetts 1.96ms from Boston, US
112.45.167.230 AS9808 China Mobile Communications Group Co., Ltd. 6.32ms from Chengdu, CN
50.198.52.54 AS7922 Comcast Cable Communications, LLC 6.63ms from Chicago, US
50.195.195.54 AS7922 Comcast Cable Communications, LLC 11.98ms from Chicago, US
170.23.24.102 AS7979 Servers.com, Inc. 0.17ms from Dallas, US
80.193.135.6 AS5089 Virgin Media Limited 1.74ms from Erith, GB
91.47.91.150 AS3320 Deutsche Telekom AG 4.50ms from Hamburg, DE
123.158.31.102 AS4837 CHINA UNICOM China169 Backbone 9.82ms from Hangzhou, CN
47.52.169.6 AS45102 Alibaba (US) Technology Co., Ltd. 1.28ms from Hong Kong, HK
99.160.195.230 AS7018 AT&T Enterprises, LLC 3.78ms from Houston, US
31.129.126.198 AS8595 OOO WestCall Ltd. 1.32ms from Moscow, RU
207.44.89.214 AS3737 PenTeleData Inc. 8.82ms from New York City, US
212.43.126.198 AS21034 Micso Information Technology Srl 8.89ms from Rome, IT
193.54.190.22 AS2200 Renater 8.10ms from Saint-Denis, FR
107.174.253.150 AS36352 HostPapa 0.20ms from San Jose, US
128.189.40.102 AS393249 University of British Columbia 7.31ms from Seattle, US
222.117.236.214 AS4766 Korea Telecom 1.43ms from Seoul, KR
180.166.126.182 AS4812 China Telecom (Group) 4.34ms from Shanghai, CN
203.44.163.134 AS1221 Telstra Limited 0.79ms from Sydney, AU
85.29.220.70 AS3249 Telia Eesti AS 6.50ms from Tallinn, EE
126.216.255.22 AS17676 SoftBank Corp. 3.15ms from Tokyo, JP
189.237.95.118 AS8151 UNINET 11.99ms from Tucson, US

Traceroute

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

$
traceroute -a -n -q1 -f5 -m15 203.253.138.109
traceroute to 203.253.138.109 (203.253.138.109): 15 hops max, 52 byte packets
5 [AS24482] 124.6.32.66 218.369 ms
6 [AS24482] 124.6.32.67 234.31 ms
7 *
8 [AS17579] 134.75.103.113 230.484 ms
9 [AS1237] 134.75.2.5 229.822 ms
10 [AS1237] 134.75.8.58 231.413 ms
11 [AS1237] 134.75.8.57 238.917 ms
12 [AS1237] 134.75.8.58 235.609 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in New York City, US
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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