203.254.118.0/24

AS10051 · Korea Post Information Center

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Summary

Country	South Korea
Domain	kt.com
ASN	AS10051
Registry	APNIC
ID	KORNET-KR

WHOIS Details

inetnum:        203.254.116.0 - 203.254.119.255
netname:        KORNET
descr:          Korea Telecom
country:        KR
admin-c:        IM667-AP
tech-c:         IM667-AP
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2025-11-03T08:14:06Z
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:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        IM667-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2017-03-28T06:37:04Z
source:         APNIC

inetnum:        203.254.116.0 - 203.254.119.255
netname:        KORNET-KR
descr:          Korea Telecom
country:        KR
admin-c:        IA9-KR
tech-c:         IM9-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:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        KT Head Office
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        IA9-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:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        KT Head Office
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        IM9-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 203.254.0.0/16

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
203.254.40.0/24	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 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

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

IP Address	ASN	Details
203.254.118.98	AS10051 Korea Post Information Center	`7.37ms` 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
197.205.57.200	AS36947 Telecom Algeria	`18.83ms` from Algiers, DZ
52.6.167.24	AS14618 Amazon.com, Inc.	`0.46ms` from Ashburn, US
40.76.163.120	AS8075 Microsoft Corporation	`0.44ms` from Ashburn, US
98.17.77.232	AS7029 Windstream Communications LLC	`6.16ms` from Atlanta, US
60.205.169.120	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.99ms` from Beijing, CN
124.204.105.216	AS4808 China Unicom Beijing Province Network	`4.91ms` from Beijing, CN
67.149.245.168	AS12083 WideOpenWest Finance LLC	`10.51ms` from Chicago, US
71.218.125.40	AS209 CenturyLink Communications, LLC	`1.73ms` from Denver, US
98.36.96.184	AS7922 Comcast Cable Communications, LLC	`6.42ms` from Fremont, US
43.217.37.152	AS16509 Amazon.com, Inc.	`0.85ms` from Kuala Lumpur, MY
66.74.216.8	AS20001 Charter Communications Inc	`7.42ms` from Los Angeles, US
184.174.118.8	AS21769 Colocation America Corporation	`0.28ms` from Los Angeles, US
97.167.143.152	AS6167 Verizon Business	`7.63ms` from Los Angeles, US
16.22.15.136	AS16509 Amazon.com, Inc.	`0.12ms` from Milan, IT
212.171.96.200	AS3269 Telecom Italia S.p.A.	`4.20ms` from Milan, IT
175.160.49.120	AS4837 CHINA UNICOM China169 Backbone	`1.98ms` from Tieling, CN
1.84.74.40	AS4134 CHINANET-BACKBONE	`6.54ms` from Xi'an, CN
5.193.26.40	AS5384 Emirates Internet	`2.93ms` from Al Fujairah City, AE
164.49.25.136	AS668 United States Department of Defense (DoD)	`0.62ms` from Atlanta, US
117.177.222.248	AS9808 China Mobile Communications Group Co., Ltd.	`2.03ms` from Chengdu, CN
79.219.34.72	AS3320 Deutsche Telekom AG	`4.25ms` from Duesseldorf, DE
63.178.82.216	AS16509 Amazon.com, Inc.	`0.20ms` from Frankfurt am Main, DE
70.52.32.40	AS577 Bell Canada	`3.48ms` from Montreal, CA
57.130.39.248	AS16276 OVH SAS	`0.43ms` from Paris, FR
62.34.178.40	AS5410 Bouygues Telecom SA	`1.00ms` from Paris, FR

Traceroute

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

traceroute -a -n -q1 203.254.118.105

traceroute to 203.254.118.105 (203.254.118.105): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.47 0.074 ms

2 [AS3786] 211.118.152.142 23.673 ms

3 *

4 *

5 *

6 [AS3786] 210.107.53.198 3 ms

7 *

8 *

9 *

10 [] 211.255.110.2 2.136 ms

11 [] 211.255.110.10 12.59 ms

12 [] 211.255.120.22 6.556 ms

13 *

14 [AS10051] 203.254.117.11 8.961 ms

15 *

16 *

17 [AS10051] 203.254.118.105 68.038 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On March 13th 2026

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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