203.254.172.0/23

AS4766 · Korea Telecom

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

Summary

Country	South Korea
Domain	kt.com
ASN	AS4766
Registry	APNIC
ID	KORNET-KR

WHOIS Details

inetnum:        203.254.172.0 - 203.254.173.255
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:  2025-11-03T08:14:07Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        9, Jinheung-gil, Naju-si, Jeollanam-do
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:  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:         [email protected]
nic-hdl:        IM667-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2017-03-28T06:37:04Z
source:         APNIC

inetnum:        203.254.172.0 - 203.254.173.255
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:         [email protected]
nic-hdl:        IA9-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected] 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:         [email protected]
nic-hdl:        IM9-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected] 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
203.254.168.0/23	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 is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.254.173.77	weshare.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

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
39.107.44.7	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.34ms` from Beijing, CN
105.154.253.55	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`7.21ms` from Casablanca, MA
209.129.10.199	AS2152 CENIC	`2.20ms` from Los Angeles, US
107.193.56.151	AS7018 AT&T Enterprises, LLC	`3.40ms` from Los Angeles, US
88.15.27.87	AS3352 TELEFONICA DE ESPANA S.A.U.	`5.99ms` from Madrid, ES
13.233.200.151	AS16509 Amazon.com, Inc.	`0.14ms` from Mumbai, IN
112.70.114.151	AS17511 OPTAGE Inc.	`2.54ms` from Osaka, JP
49.58.157.183	AS4766 Korea Telecom	`2.13ms` from Seoul, KR
58.251.27.71	AS17623 China Unicom Shenzen network	`2.70ms` from Shenzhen, CN
111.217.49.215	AS2527 Sony Network Communications Inc.	`11.85ms` from Tokyo, JP
67.158.65.247	AS7794 Execulink Telecom Inc.	`4.32ms` from Toronto, CA
37.115.200.215	AS15895 Kyivstar PJSC	`0.84ms` from Kyiv, UA
49.255.194.119	AS4826 Vocus Connect International Backbone	`0.23ms` from Melbourne, AU
121.82.109.55	AS17511 OPTAGE Inc.	`1.81ms` from Osaka, JP
18.204.100.215	AS14618 Amazon.com, Inc.	`0.14ms` from Reston, US
5.89.102.151	AS30722 Fastweb SpA	`9.39ms` from Rome, IT
71.199.4.23	AS7922 Comcast Cable Communications, LLC	`4.11ms` from Salt Lake City, US
118.220.61.23	AS9318 SK Broadband Co Ltd	`1.90ms` from Seoul, KR
177.95.7.103	AS27699 TELEFÔNICA BRASIL S.A	`1.54ms` from São Paulo, BR
102.219.104.7	AS328891 EFANEST LIMITED	`2.29ms` from Accra, GH
89.124.102.247	AS216071 SERVERS TECH FZCO	`0.73ms` from Amsterdam, NL
116.72.75.199	AS17488 Hathway IP Over Cable Internet	`1.34ms` from Bengaluru, IN
102.221.217.7	AS328732 Krypton Web (Pty) Ltd	`1.42ms` from Cape Town, ZA
24.236.177.55	AS20115 Charter Communications LLC	`14.82ms` from Chicago, US
9.205.137.151	AS8075 Microsoft Corporation	`0.94ms` from Copenhagen, DK

Traceroute

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

traceroute -a -n -q1 -m6 203.254.173.233

traceroute to 203.254.173.233 (203.254.173.233): 6 hops max, 52 byte packets

1 [AS15169] 74.125.37.114 137.531 ms

2 *

3 [AS4766] 112.174.84.170 167.08 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Columbus, US

On January 30th 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.

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.

Get Started for Free Contact Sales