203.233.155.0/24

AS1237  ·  KISTI

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

Summary

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

WHOIS Details

inetnum:        203.233.154.0 - 203.233.155.255
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:  2025-11-03T07:48:06Z
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:        203.233.154.0 - 203.233.155.255
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 203.233.0.0/16

Range ASN Company Num of IPs
203.233.0.0/17 AS17841 LG DACOM Corporation 32,768
203.233.0.0/17 AS3786 LG DACOM Corporation 32,768
203.233.0.0/17 AS38707 LG DACOM Corporation 32,768
203.233.0.0/17 AS9693 LG DACOM Corporation 32,768
203.233.0.0/17 AS38428 LG DACOM Corporation 32,768
203.233.0.0/17 AS9684 LG DACOM Corporation 32,768
203.233.192.0/19 AS7557 Korea Trade Network 8,192
203.233.224.0/20 AS7557 Korea Trade Network 4,096
203.233.74.0/24 AS38428 LG Uplus 256
203.233.156.0/24 AS1237 KISTI 256
203.233.85.0/24 AS9968 Kyobo Life Insurance Co. 256
203.233.43.0/24 AS18295 LG Uplus 256
203.233.44.0/24 AS18295 LG Uplus 256
203.233.9.0/24 AS18373 KOOKMIN BANK 256
203.233.22.0/24 AS23573 LG Uplus 256
203.233.128.0/24 AS3786 Korea Internet Security Agency 256
203.233.165.0/24 AS3786 Korea Internet Security Agency 256
203.233.72.0/24 AS38428 LG Uplus 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
34.201.142.8 AS14618 Amazon.com, Inc. 0.57ms from Ashburn, US
101.42.90.72 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.97ms from Beijing, CN
98.206.65.216 AS7922 Comcast Cable Communications, LLC 10.03ms from Chicago, US
66.151.243.40 AS12179 Unitas Global 1.12ms from Dallas, US
158.252.75.40 AS16509 Amazon.com, Inc. 0.10ms from Dubai, AE
109.78.101.232 AS15502 Vodafone Ireland Limited 4.26ms from Dublin, IE
93.225.186.136 AS3320 Deutsche Telekom AG 8.42ms from Frankfurt am Main, DE
27.47.193.8 AS17622 China Unicom Guangzhou network 3.84ms from Guangzhou, CN
207.162.93.88 AS376 Reseau d'Informations Scientifiques du Quebec (RISQ Inc.) 0.65ms from Montreal, CA
97.165.160.88 AS6167 Verizon Business 15.38ms from Philadelphia, US
20.125.109.216 AS8075 Microsoft Corporation 0.24ms from Phoenix, US
185.49.149.72 AS31229 Beyond.pl sp. z o.o. 0.56ms from Poznan, PL
90.228.167.40 AS3301 Telia Company AB 0.59ms from Stockholm, SE
213.113.124.120 AS8434 Telenor Sverige AB 0.96ms from Stockholm, SE
23.22.65.40 AS14618 Amazon.com, Inc. 0.54ms from Ashburn, US
121.21.58.200 AS4837 CHINA UNICOM China169 Backbone 15.63ms from Beijing, CN
74.209.13.104 AS5742 Fidium 15.51ms from Chicago, US
73.36.71.200 AS7922 Comcast Cable Communications, LLC 8.05ms from Chicago, US
190.107.199.104 AS61925 MEGABYTE PROVEDOR DE INTERNET LTDA 4.91ms from Fortaleza, BR
2.58.112.248 AS209185 Tim Niemeyer 12.64ms from Frankfurt am Main, DE
193.210.153.24 AS1759 Telia Finland Oyj 0.76ms from Helsinki, FI
91.152.102.200 AS719 Elisa Oyj 3.21ms from Helsinki, FI
72.52.144.152 AS32244 Liquid Web, L.L.C 0.17ms from Lansing, US
46.101.52.56 AS14061 DigitalOcean, LLC 0.33ms from London, GB
83.54.64.184 AS3352 TELEFONICA DE ESPANA S.A.U. 9.59ms from Madrid, ES

Traceroute

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

$
traceroute -a -n -q1 -f8 -m14 203.233.155.253
traceroute to 203.233.155.253 (203.233.155.253): 14 hops max, 52 byte packets
8 [] 150.222.242.80 66.034 ms
9 [AS16509] 52.93.137.76 77.074 ms
10 [] 139.150.100.129 67.066 ms
11 [AS1237] 134.75.3.5 70.996 ms
12 *
13 *
14 *
Measurement taken from IPinfo ProbeNet in Singapore, SG
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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs