210.123.0.0/16

AS4766 · Korea Telecom

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Summary

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

WHOIS Details

inetnum:        210.123.0.0 - 210.123.127.255
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
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:        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 210.0.0.0/8

Range	ASN	Company	Num of IPs
210.8.0.0/15	AS17535	AAPT Limited	131,072
210.8.0.0/15	AS4739	AAPT Limited	131,072
210.8.0.0/15	AS2764	AAPT Limited	131,072
210.202.0.0/16	AS24154	Asia Pacific Telecom Co., Ltd	65,536
210.182.0.0/16	AS18317	LG DACOM Corporation	65,536
210.124.0.0/16	AS9856	LG DACOM Corporation	65,536
210.128.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
210.130.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
210.190.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.216.0.0/16	AS9319	LG DACOM Corporation	65,536
210.164.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.108.0.0/16	AS9852	LG DACOM Corporation	65,536
210.108.0.0/16	AS18305	LG DACOM Corporation	65,536
210.215.0.0/16	AS38055	Nexon Asia Pacific Pty Ltd	65,536
210.108.0.0/16	AS9526	LG DACOM Corporation	65,536
210.154.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.124.0.0/16	AS9319	LG DACOM Corporation	65,536
210.91.0.0/16	AS4766	Korea Telecom	65,536
210.182.0.0/16	AS9319	LG DACOM Corporation	65,536
210.25.0.0/16	AS4538	China Education and Research Network	65,536
210.215.0.0/16	AS38465	Nexon Asia Pacific Pty Ltd	65,536
210.61.0.0/16	AS3462	Data Communication Business Group,	65,536
210.109.0.0/16	AS9848	SEJONG NETWORKS	65,536
210.122.0.0/16	AS9848	SEJONG NETWORKS	65,536
210.138.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
210.225.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.149.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
210.85.0.0/16	AS17709	ETWebs Taiwan Co. Ltd.	65,536
210.216.0.0/16	AS17852	LG DACOM Corporation	65,536
210.177.0.0/16	AS4515	PCCW Business Internet Access	65,536
210.248.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.232.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.50.0.0/16	AS9443	VOCUS PTY LTD	65,536
210.144.0.0/16	AS4673	NTT DATA CORPORATION	65,536
210.3.0.0/16	AS140881	HGC Global Communications Limited	65,536
210.197.0.0/16	AS4725	SoftBank Corp.	65,536
210.11.0.0/16	AS2764	AAPT Limited	65,536
210.120.0.0/16	AS45404	LG DACOM Corporation	65,536
210.137.0.0/16	AS2907	Research Organization of Information and Systems, National Institute of Informatics	65,536
210.148.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
210.109.0.0/16	AS23588	SEJONG NETWORKS	65,536
210.65.0.0/16	AS3462	Data Communication Business Group,	65,536
210.147.0.0/16	AS2518	BIGLOBE Inc.	65,536
210.51.0.0/16	AS9929	China Unicom IP network	65,536
210.108.0.0/16	AS9776	LG DACOM Corporation	65,536
210.108.0.0/16	AS9767	LG DACOM Corporation	65,536
210.202.0.0/16	AS7482	Asia Pacific Telecom Co., Ltd	65,536
210.66.0.0/16	AS4780	New Century InfoComm Tech. Co., Ltd.	65,536
210.202.0.0/16	AS9311	Asia Pacific Telecom Co., Ltd	65,536
210.85.0.0/16	AS9919	ETWebs Taiwan Co. Ltd.	65,536

Hosted domains

There are 159 domain names hosted across 89 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
210.123.89.72	ollehadshowcase.net	12
210.123.79.102	marketing119.site	8
210.123.52.199	seasonlook.net	8
210.123.92.140	pcs.co.kr	7
210.123.62.25	koreadance.org	5
210.123.149.81	rhaon.net	4
210.123.142.56	koreajjh.com	4
210.123.142.51	megafn.co.kr	3
210.123.92.165	ktfriend.net	3
210.123.22.53	scggrid.com	3
210.123.70.236	samwha.com	3
210.123.55.36	tunazip.com	3
210.123.51.178	itweb.kr	3
210.123.251.164	isvc.dev	3
210.123.22.15	slight.co.kr	2
210.123.135.162	aprokorea.com	2
210.123.79.101	kmbckorea.com	2
210.123.81.225	kingled.site	2
210.123.149.83	poolsori.co.kr	2
210.123.22.5	hanbill.com	2

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

23,598 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
210.123.34.76	AS18176 KOOKMIN UNIVERSITY	`1.92ms` from Seoul, KR
210.123.49.17	AS4766 Korea Telecom	`2.24ms` from Seoul, KR
210.123.95.7	AS4766 Korea Telecom	`1.25ms` from Seoul, KR
210.123.88.80	AS4766 Korea Telecom	`1.26ms` from Seoul, KR
210.123.16.1	AS4766 Korea Telecom	`1.28ms` from Seoul, KR
210.123.154.36	AS4766 Korea Telecom	`4.87ms` from Seoul, KR
210.123.134.173	AS4766 Korea Telecom	`6.49ms` from Seoul, KR
210.123.138.182	AS4766 Korea Telecom	`7.13ms` from Seoul, KR
210.123.120.190	AS4766 Korea Telecom	`1.06ms` from Seoul, KR
210.123.166.197	AS4766 Korea Telecom	`6.73ms` from Seoul, KR
210.123.0.212	AS4766 Korea Telecom	`1.37ms` from Seoul, KR
210.123.101.62	AS4766 Korea Telecom	`1.16ms` from Seoul, KR
210.123.106.252	AS4766 Korea Telecom	`1.48ms` from Seoul, KR
210.123.35.120	AS18176 KOOKMIN UNIVERSITY	`1.90ms` from Seoul, KR
210.123.182.70	AS4766 Korea Telecom	`7.50ms` from Seoul, KR
210.123.139.55	AS4766 Korea Telecom	`4.90ms` from Seoul, KR
210.123.92.191	AS4766 Korea Telecom	`2.06ms` from Seoul, KR
210.123.185.156	AS4766 Korea Telecom	`7.27ms` from Seoul, KR
210.123.48.176	AS4766 Korea Telecom	`3.22ms` from Seoul, KR
210.123.43.212	AS18176 KOOKMIN UNIVERSITY	`1.95ms` from Seoul, KR
210.123.178.32	AS4766 Korea Telecom	`7.43ms` from Seoul, KR
210.123.67.151	AS4766 Korea Telecom	`1.75ms` from Seoul, KR
210.123.172.1	AS4766 Korea Telecom	`6.36ms` from Seoul, KR
210.123.27.21	AS4766 Korea Telecom	`0.95ms` from Seoul, KR
210.123.208.254	AS4766 Korea Telecom	`5.47ms` 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
24.66.225.144	AS6327 Shaw Communications	`4.83ms` from Calgary, CA
118.253.172.176	AS63835 CT-HuNan-Changsha-IDC	`0.58ms` from Changsha, CN
40.67.182.160	AS8075 Microsoft Corporation	`0.26ms` from Des Moines, US
36.250.127.16	AS4837 CHINA UNICOM China169 Backbone	`7.57ms` from Fuzhou, CN
86.61.70.112	AS5603 Telekom Slovenije, d.d.	`0.88ms` from Ljubljana, SI
94.80.254.96	AS3269 Telecom Italia S.p.A.	`2.59ms` from Milan, IT
13.126.19.96	AS16509 Amazon.com, Inc.	`0.14ms` from Mumbai, IN
165.85.176.48	AS394089 Google LLC	`0.98ms` from Mumbai, IN
63.111.184.96	AS17088 Currenex, Inc.	`0.97ms` from New York City, US
83.205.9.192	AS3215 Orange S.A.	`7.30ms` from Paris, FR
150.254.30.80	AS206523 Poznan University of Technology	`0.88ms` from Poznan, PL
81.75.143.0	AS3269 Telecom Italia S.p.A.	`9.34ms` from Rome, IT
35.244.89.176	AS396982 Google LLC	`0.13ms` from Sydney, AU
153.120.187.64	AS7684 SAKURA Internet Inc.	`16.41ms` from Tokyo, JP
178.191.251.224	AS8447 A1 Telekom Austria AG	`0.95ms` from Vienna, AT
111.176.238.64	AS4134 CHINANET-BACKBONE	`7.91ms` from Wuhan, CN
1.82.59.32	AS4134 CHINANET-BACKBONE	`5.57ms` from Xi'an, CN
162.234.202.176	AS7018 AT&T Enterprises, LLC	`3.96ms` from Atlanta, US
101.164.37.112	AS1221 Telstra Limited	`19.72ms` from Brisbane, AU
172.235.16.96	AS63949 Akamai Connected Cloud	`0.68ms` from Chennai, IN
117.207.23.192	AS9829 National Internet Backbone	`5.51ms` from Delhi, IN
103.159.128.64	AS63526 Systems Solutions & development Technologies Limited	`0.39ms` from Dhaka, BD
95.81.9.64	AS15943 wilhelm.tel GmbH	`0.44ms` from Hamburg, DE
62.49.225.48	AS5378 Vodafone Limited	`3.68ms` from London, GB
221.142.21.80	AS9318 SK Broadband Co Ltd	`7.64ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 210.123.83.22

traceroute to 210.123.83.22 (210.123.83.22): 64 hops max, 52 byte packets

1 [AS15169] 72.14.239.92 36.354 ms

2 *

3 [AS4766] 112.174.84.25 194.159 ms

4 *

5 *

6 *

7 [AS4766] 210.123.83.22 206.574 ms

Measurement taken from

IPinfo ProbeNet in Singapore, SG

On December 6th 2025

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