203.254.40.0/24

AS1237 · KISTI

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Summary

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

WHOIS Details

inetnum:        203.254.40.0 - 203.254.40.255
netname:        KREONet
descr:          KISTI
admin-c:        IM702-AP
tech-c:         IM702-AP
country:        KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2017-02-02T07:21:45Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        Jeollanam-do Naju-si Jinheung-gil
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:  2021-06-15T06:21:49Z
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:        203.254.40.0 - 203.254.40.255
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.
changed:        hostmaster@nic.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
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
source:         KRNIC

Nearby Ranges

BGP prefixes that overlap with 203.254.0.0/16

Range	ASN	Company	Num of IPs
203.254.192.0/18	AS6619	SamsungSDS Inc.	16,384
203.254.128.0/19	AS7560	Jeonbuk National University	8,192
203.254.176.0/20	AS1237	KISTI	4,096
203.254.160.0/21	AS10070	KRISS SubDAEJONnetworks connected to backbone	2,048
203.254.172.0/23	AS4766	Korea Telecom	512
203.254.168.0/23	AS1237	KISTI	512
203.254.240.0/24	AS138380	VOLVO CONSTRUCTION EQUIPMENT KOREA LTD	256
203.254.170.0/24	AS17861	KISTI	256
203.254.9.0/24	AS3786	Korea Internet Security Agency	256
203.254.171.0/24	AS4766	Korea Telecom	256
203.254.241.0/24	AS6619	SamsungSDS Inc.	256
203.254.51.0/24	AS9494	National Infomation Society Agency	256
203.254.179.0/24	AS1237	National Research Council for	256
203.254.180.0/24	AS1237	Science and Technology Policy Institute	256
203.254.181.0/24	AS1237	Korea Institute for International Economic Policy	256
203.254.185.0/24	AS1237	Korea Labor Institute	256
203.254.186.0/24	AS1237	Korea Institute for Health and Social Affairs	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

Read more

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
31.160.85.40	AS1136 KPN B.V.	`0.44ms` from Amsterdam, NL
3.162.128.8	AS16509 Amazon.com, Inc.	`0.54ms` from Ashburn, US
141.134.203.8	AS6848 Telenet BV	`7.16ms` from Brussels, BE
84.2.93.232	AS5483 Magyar Telekom Plc.	`2.56ms` from Budapest, HU
207.144.40.120	AS2711 Spirit Communications	`0.70ms` from Charlotte, US
78.159.110.24	AS28753 Leaseweb Deutschland GmbH	`0.58ms` from Frankfurt am Main, DE
198.37.147.24	AS11377 SendGrid, Inc.	`6.33ms` from Los Angeles, US
80.59.28.184	AS3352 TELEFONICA DE ESPANA S.A.U.	`6.79ms` from Madrid, ES
34.152.56.104	AS396982 Google LLC	`0.10ms` from Montreal, CA
220.175.58.88	AS4134 CHINANET-BACKBONE	`0.94ms` from Nanchang, CN
90.179.3.104	AS5610 O2 Czech Republic, a.s.	`2.49ms` from Prague, CZ
18.210.73.120	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
203.104.236.248	AS17707 AS for DATAHOTEL, which is one of iDC in Japan,	`0.75ms` from Tokyo, JP
49.129.13.200	AS2518 BIGLOBE Inc.	`1.61ms` from Tokyo, JP
105.107.4.200	AS36947 Telecom Algeria	`13.99ms` from Algiers, DZ
35.91.253.152	AS16509 Amazon.com, Inc.	`0.53ms` from Boardman, US
34.122.119.56	AS396982 Google LLC	`0.09ms` from Council Bluffs, US
178.202.189.152	AS3209 Vodafone GmbH	`7.52ms` from Duesseldorf, DE
113.184.67.72	AS45899 VNPT Corp	`2.54ms` from Hanoi, VN
68.204.239.40	AS33363 Charter Communications, Inc	`7.50ms` from Orlando, US
174.56.139.72	AS7922 Comcast Cable Communications, LLC	`14.81ms` from Orlando, US
88.181.16.136	AS12322 Free SAS	`17.22ms` from Paris, FR
95.235.253.8	AS3269 Telecom Italia S.p.A.	`9.51ms` from Rome, IT
152.228.203.248	AS16276 OVH SAS	`0.07ms` from Roubaix, FR
23.101.180.72	AS8075 Microsoft Corporation	`0.23ms` from San Antonio, 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 203.254.40.129

traceroute to 203.254.40.129 (203.254.40.129): 5 hops max, 52 byte packets

1 [AS15169] 64.233.174.23 12.595 ms

2 [AS17579] 134.75.108.97 12.818 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Chang-hua, TW

On December 20th 2025

What are IP address ranges?

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