203.254.176.0/20

AS1237 · KISTI

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Summary

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

WHOIS Details

inetnum:        203.254.176.0 - 203.254.191.255
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:  2017-02-02T07:21:49Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        Jeollanam-do Naju-si Jinheung-gil
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
nic-hdl:        IM702-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2022-01-11T12:18:02Z
source:         APNIC

inetnum:        203.254.176.0 - 203.254.191.255
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:        [email protected]
source:         KRNIC

person:         IP Manager
address:        Daejeon Yuseong-gu Daehak-ro 245
address:        KISTI
country:        KR
phone:          +82-42-869-0707
e-mail:         [email protected]
nic-hdl:        IA18-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected]
source:         KRNIC

person:         IP Manager
address:        Daejeon Yuseong-gu Daehak-ro 245
address:        KISTI
country:        KR
phone:          +82-42-869-0707
e-mail:         [email protected]
nic-hdl:        IM18-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected]
source:         KRNIC

Overlapping Ranges

BGP prefixes that are contained by 203.254.176.0/20

Range	ASN	Company	Num of IPs
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

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
203.254.160.0/21	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
203.254.40.0/24	AS1237	KISTI	256
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 19 domain names hosted across 15 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.254.181.150	kiep.go.kr	5
203.254.183.16	kiet.re.kr	1
203.254.187.21	wee.go.kr	1
203.254.185.1	kli.re.kr	1
203.254.183.70	kisis.re.kr	1
203.254.183.51	istans.or.kr	1
203.254.179.107	nfis.re.kr	1
203.254.183.17	kiet.re.kr	1

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

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

IP Address	ASN	Details
203.254.181.2	AS1237 KISTI	`3.72ms` from Seoul, KR
203.254.183.71	AS1237 KISTI	`3.99ms` from Seoul, KR
203.254.185.111	AS1237 KISTI	`3.71ms` from Seoul, KR
203.254.182.2	AS1237 KISTI	`3.69ms` from Seoul, KR
203.254.179.130	AS1237 KISTI	`3.82ms` from Seoul, KR
203.254.184.4	AS1237 KISTI	`4.84ms` from Seoul, KR
203.254.187.252	AS1237 KISTI	`4.11ms` from Seoul, KR
203.254.186.43	AS1237 KISTI	`4.18ms` from Seoul, KR
203.254.180.3	AS1237 KISTI	`3.74ms` 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
77.165.144.132	AS1136 KPN B.V.	`1.39ms` from Amsterdam, NL
114.251.15.68	AS4808 China Unicom Beijing Province Network	`2.84ms` from Beijing, CN
34.217.153.244	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
20.162.19.52	AS8075 Microsoft Corporation	`0.17ms` from Cardiff, GB
116.162.47.148	AS4837 CHINA UNICOM China169 Backbone	`1.97ms` from Changsha, CN
118.71.84.20	AS18403 FPT Telecom Company	`1.52ms` from Hanoi, VN
86.158.237.132	AS2856 British Telecommunications PLC	`5.13ms` from London, GB
69.105.105.4	AS7018 AT&T Enterprises, LLC	`1.72ms` from Los Angeles, US
73.134.68.68	AS7922 Comcast Cable Communications, LLC	`11.96ms` from Manassas, US
85.159.244.20	AS197347 Allianz Arena Muenchen Stadion GmbH	`3.46ms` from Nuernberg, DE
133.167.7.36	AS9371 SAKURA Internet Inc.	`0.52ms` from Osaka, JP
119.214.127.148	AS4766 Korea Telecom	`4.20ms` from Seoul, KR
203.116.74.100	AS4657 StarHub Ltd	`2.68ms` from Singapore, SG
140.123.58.52	AS1659 Taiwan Academic Network (TANet) Information Center	`16.05ms` from Taipei, TW
220.211.1.196	AS2527 Sony Network Communications Inc.	`15.23ms` from Tokyo, JP
121.116.2.244	AS4713 NTT DOCOMO BUSINESS,Inc.	`19.39ms` from Tokyo, JP
176.115.153.244	AS198757 MediaKvant Ltd.	`16.33ms` from Yekaterinburg, RU
35.170.204.164	AS14618 Amazon.com, Inc.	`0.57ms` from Ashburn, US
101.25.229.228	AS4837 CHINA UNICOM China169 Backbone	`12.56ms` from Beijing, CN
197.51.86.164	AS8452 TE-AS	`8.58ms` from Cairo, EG
220.192.22.4	AS4837 CHINA UNICOM China169 Backbone	`1.78ms` from Chongqing, CN
128.136.37.52	AS13649 Flexential Colorado Corp.	`0.85ms` from Dallas, US
86.44.7.116	AS5466 Eircom Limited	`4.50ms` from Dublin, IE
34.141.78.180	AS396982 Google LLC	`0.10ms` from Frankfurt am Main, DE
137.74.186.196	AS16276 OVH SAS	`0.12ms` from Gravelines, FR

Traceroute

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

traceroute -a -n -q1 203.254.185.129

traceroute to 203.254.185.129 (203.254.185.129): 64 hops max, 52 byte packets

1 [AS26383] 91.149.236.1 15.691 ms

2 *

3 [AS174] 154.18.4.192 47.874 ms

4 [AS174] 154.54.87.121 184.625 ms

5 [AS174] 154.54.31.77 163.195 ms

6 [AS174] 38.88.51.82 271.35 ms

7 *

8 [AS17579] 134.75.103.113 327.262 ms

9 [AS1237] 134.75.8.50 315.185 ms

10 [AS1237] 203.254.185.129 356.267 ms

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On December 28th 2025

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.

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