Autonomous System details

AS45400

Korea Telecom · kt.com

South Korea

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AS45400 – Korea Telecom

Field	Value
Country	South Korea
Website	kt.com
Hosted domains	108
IPv4 addresses	25,344
IPv6 addresses	0
ASN type	ISP
Registry	apnic
Updated	5 years ago on Sep 07, 2021

Netblock	Company	Num of IPs
211.46.92.0/23	Korea Telecom	512
180.92.241.0/24	Korea Telecom	256
180.92.248.0/24	Korea Telecom	256
180.92.250.0/24	Korea Telecom	256
180.92.251.0/24	Korea Telecom	256
180.92.254.0/24	Korea Telecom	256
203.242.5.0/24	Korea Telecom	256
203.254.123.0/24	Korea Telecom	256
210.90.6.0/24	Korea Telecom	256
210.90.80.0/24	Korea Telecom	256
210.90.82.0/24	Korea Telecom	256
210.90.191.0/24	Korea Telecom	256
210.90.199.0/24	Korea Telecom	256
210.90.214.0/24	Korea Telecom	256
210.95.12.0/24	Korea Telecom	256
210.95.19.0/24	Korea Telecom	256
210.96.31.0/24	Korea Telecom	256
210.96.84.0/24	Korea Telecom	256
210.96.115.0/24	Korea Telecom	256
210.96.121.0/24	Korea Telecom	256
210.97.6.0/24	Korea Telecom	256
210.97.119.0/24	Korea Telecom	256
210.99.10.0/24	Korea Telecom	256
210.99.158.0/24	Korea Telecom	256
210.99.159.0/24	Korea Telecom	256
210.99.168.0/24	Korea Telecom	256
210.100.136.0/24	Korea Telecom	256
210.100.168.0/24	Korea Telecom	256
210.100.214.0/24	Korea Telecom	256
210.103.55.0/24	Korea Telecom	256
210.103.111.0/24	Korea Telecom	256
210.103.115.0/24	Korea Telecom	256
210.104.8.0/24	Korea Telecom	256
210.104.9.0/24	Korea Telecom	256
210.104.10.0/24	Korea Telecom	256
210.104.11.0/24	Korea Telecom	256
210.104.12.0/24	Korea Telecom	256
210.104.13.0/24	Korea Telecom	256
210.104.14.0/24	Korea Telecom	256
210.104.15.0/24	Korea Telecom	256
210.104.20.0/24	Korea Telecom	256
210.104.22.0/24	Korea Telecom	256
210.104.26.0/24	Korea Telecom	256
210.104.27.0/24	Korea Telecom	256
210.104.28.0/24	Korea Telecom	256
210.104.44.0/24	Korea Telecom	256
210.104.102.0/24	Korea Telecom	256
210.104.123.0/24	Korea Telecom	256
210.104.138.0/24	Korea Telecom	256
210.104.218.0/24	Korea Telecom	256
210.104.237.0/24	Korea Telecom	256
210.117.195.0/24	KISTI	256
210.117.199.0/24	KISTI	256
210.178.187.0/24	Korea Telecom	256
210.179.87.0/24	Korea Telecom	256
210.179.88.0/24	Korea Telecom	256
210.179.140.0/24	Korea Telecom	256
210.179.141.0/24	Korea Telecom	256
210.179.159.0/24	Korea Telecom	256
210.179.218.0/24	Korea Telecom	256
210.179.219.0/24	Korea Telecom	256
210.204.213.0/24	Korea Telecom	256
210.204.226.0/24	Korea Telecom	256
210.204.227.0/24	Korea Telecom	256
210.211.1.0/24	Korea Telecom	256
210.211.15.0/24	Korea Telecom	256
211.34.114.0/24	Korea Telecom	256
211.34.115.0/24	Korea Telecom	256
211.34.147.0/24	Korea Telecom	256
211.34.174.0/24	Korea Telecom	256
211.43.142.0/24	Korea Telecom	256
211.46.94.0/24	Korea Telecom	256
211.46.95.0/24	Korea Telecom	256
211.46.125.0/24	Korea Telecom	256
211.57.43.0/24	Korea Telecom	256
211.114.15.0/24	Korea Telecom	256
211.114.27.0/24	Korea Telecom	256
211.114.36.0/24	Korea Telecom	256
211.114.101.0/24	Korea Telecom	256
211.114.171.0/24	Korea Telecom	256
211.184.16.0/24	Korea Telecom	256
211.185.244.0/24	Korea Telecom	256
211.185.245.0/24	Korea Telecom	256
211.236.67.0/24	Korea Telecom	256
211.236.106.0/24	Korea Telecom	256
211.236.118.0/24	Korea Telecom	256
211.236.120.0/24	Korea Telecom	256
211.236.123.0/24	Korea Telecom	256
211.236.124.0/24	Korea Telecom	256
211.252.223.0/24	Korea Telecom	256
211.252.239.0/24	Korea Telecom	256
211.253.65.0/24	Korea Telecom	256
211.253.67.0/24	Korea Telecom	256
211.253.149.0/24	Korea Telecom	256
211.253.150.0/24	Korea Telecom	256
211.253.250.0/24	Korea Telecom	256
211.255.123.0/24	Korea Telecom	256
221.145.178.0/24	Korea Telecom	256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS45400
                                                OrgID:          AS45400
                                                ASName:         AS45400
                                                ASNumber:       AS45400
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 108 domain names hosted across 44 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
211.46.95.27	██████████	10
211.236.124.197	██████████	7
211.236.124.196	██████████	7
211.46.95.85	██████████	6
211.46.94.13	███████	6
211.46.92.199	██████████	4
211.236.124.97	██████████	3
211.236.124.96	██████████	3
211.46.95.130	██████████	2
211.253.67.132	██████████	2

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Peers

There are 12 peers for this ASN.

Peers	Name
AS10043	Ministry of Science and ICT
AS10044	Rural Development Administration (RDA)
AS10051	Korea Post Information Center
AS10161	QIA
AS10165	KOREA CUSTOMS SERVICE
AS17574	Seoul Metropolitan Government Computer Center
AS17585	Public Procurement Service The Republic of Korea
AS17841	NATIONAL INFORMATION RESOURCES SERVICE
AS23585	Ministry of Justice
AS23592	Ministry of Food and Drug Safety
AS38102	SCOURTFAMILY
AS38682	National Institute of Environmental Research

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ASN API & Database

Upstreams

There is 1 peer for this ASN.

upstreams	Name
AS17841	NATIONAL INFORMATION RESOURCES SERVICE

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ASN API & Database

Downstreams

There are 8 downstreams for this ASN.

Downstreams	Name
AS10043	Ministry of Science and ICT
AS10051	Korea Post Information Center
AS10161	QIA
AS10165	KOREA CUSTOMS SERVICE
AS17574	Seoul Metropolitan Government Computer Center
AS17585	Public Procurement Service The Republic of Korea
AS23585	Ministry of Justice
AS38102	SCOURTFAMILY

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
211.114.171.1	AS45400 Korea Telecom	`4.70ms` from Incheon, KR
211.43.142.1	AS45400 Korea Telecom	`10.43ms` from Incheon, KR
210.178.187.1	AS45400 Korea Telecom	`9.13ms` from Seoul, KR
211.184.16.1	AS45400 Korea Telecom	`2.71ms` from Seoul, KR
210.104.218.254	AS45400 Korea Telecom	`3.30ms` from Seoul, KR
211.114.15.254	AS45400 Korea Telecom	`6.89ms` from Seoul, KR
210.99.168.250	AS45400 Korea Telecom	`6.08ms` from Seoul, KR
210.104.102.70	AS45400 Korea Telecom	`2.88ms` from Seoul, KR
211.57.43.254	AS45400 Korea Telecom	`6.85ms` from Seoul, KR
210.204.213.158	AS45400 Korea Telecom	`1.97ms` from Seoul, KR
210.204.226.34	AS45400 Korea Telecom	`1.79ms` from Seoul, KR
210.103.55.33	AS45400 Korea Telecom	`3.58ms` from Seoul, KR
211.253.65.254	AS45400 Korea Telecom	`7.04ms` from Incheon, KR
210.90.214.242	AS45400 Korea Telecom	`7.36ms` from Seoul, KR
211.252.223.141	AS45400 Korea Telecom	`5.90ms` from Seoul, KR
210.211.15.129	AS45400 Korea Telecom	`8.55ms` from Seoul, KR
180.92.241.5	AS45400 Korea Telecom	`7.81ms` from Seoul, KR
210.104.20.1	AS45400 Korea Telecom	`7.34ms` from Seoul, KR
180.92.254.1	AS45400 Korea Telecom	`8.29ms` from Seoul, KR
210.179.88.254	AS45400 Korea Telecom	`4.77ms` from Incheon, KR
203.254.123.1	AS45400 Korea Telecom	`7.23ms` from Seoul, KR
211.46.95.253	AS45400 Korea Telecom	`2.69ms` from Seoul, KR
221.145.178.1	AS45400 Korea Telecom	`5.47ms` from Seoul, KR
211.46.125.252	AS45400 Korea Telecom	`1.91ms` from Incheon, KR
210.103.115.139	AS45400 Korea Telecom	`6.97ms` 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
46.198.223.248	AS3329 Vodafone-panafon Hellenic Telecommunications Company SA	`5.34ms` from Athens, GR
196.131.218.40	AS24835 Vodafone Data	`10.54ms` from Cairo, EG
113.165.181.216	AS45899 VNPT Corp	`8.70ms` from Da Nang, VN
91.33.218.248	AS3320 Deutsche Telekom AG	`4.43ms` from Duesseldorf, DE
50.65.213.232	AS6327 Shaw Communications	`5.08ms` from Edmonton, CA
87.158.167.168	AS3320 Deutsche Telekom AG	`4.64ms` from Hamburg, DE
81.41.171.152	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.59ms` from Madrid, ES
82.69.123.216	AS13037 Zen Internet Ltd	`1.73ms` from Manchester, GB
13.201.229.232	AS16509 Amazon.com, Inc.	`0.50ms` from Mumbai, IN
2.60.34.104	AS12389 PJSC Rostelecom	`8.88ms` from Novosibirsk, RU
131.153.12.24	AS20454 SECURED SERVERS LLC	`0.36ms` from Phoenix, US
109.224.229.168	AS200325 BUNNYWAY, informacijske storitve d.o.o.	`0.16ms` from Sydney, AU
42.233.9.136	AS4837 CHINA UNICOM China169 Backbone	`2.24ms` from Zhengzhou, CN
73.237.25.200	AS7922 Comcast Cable Communications, LLC	`4.18ms` from Atlanta, US
40.177.144.24	AS16509 Amazon.com, Inc.	`1.72ms` from Calgary, CA
212.228.13.72	AS5378 Vodafone Limited	`4.81ms` from Erith, GB
83.21.235.56	AS5617 Orange Polska Spolka Akcyjna	`7.17ms` from Gdansk, PL
220.172.61.72	AS4134 CHINANET BACKBONE	`2.71ms` from Guiyang, CN
88.5.166.216	AS3352 TELEFONICA DE ESPANA S.A.U.	`5.36ms` from Madrid, ES
112.246.138.24	AS4837 CHINA UNICOM China169 Backbone	`6.31ms` from Qingdao, CN
3.221.157.104	AS14618 Amazon.com, Inc.	`0.24ms` from Reston, US
54.153.34.24	AS16509 Amazon.com, Inc.	`0.12ms` from San Jose, US
40.73.244.168	AS58593 Shanghai Blue Cloud Technology Co.,Ltd	`2.75ms` from Shanghai, CN
61.44.45.120	AS10013 FreeBit Co.,Ltd.	`13.71ms` from Tokyo, JP
61.197.18.24	AS2514 NTT PC Communications, Inc.	`5.54ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 211.46.95.25

traceroute to 211.46.95.25 (211.46.95.25): 64 hops max, 52 byte packets

1 [AS15169] 172.253.64.143 3.146 ms

2 [AS3786] 182.162.216.41 1.177 ms

3 *

4 *

5 *

6 [AS3786] 210.107.53.198 7.357 ms

7 *

8 *

9 *

10 [] 211.255.110.2 2.439 ms

11 [] 211.255.110.10 2.509 ms

12 [] 211.255.120.10 3.03 ms

13 *

14 *

15 *

16 [AS45400] 211.46.95.25 24.487 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On April 25th 2026

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS45400 at robtex.

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