211.231.128.0/17

AS4766 · Korea Telecom

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Summary

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

WHOIS Details

inetnum:        211.228.0.0 - 211.231.255.255
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:  2025-11-03T08:14:59Z
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:        211.228.0.0 - 211.231.255.255
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

Overlapping Ranges

BGP prefixes that are contained by 211.231.128.0/17

Range	ASN	Company	Num of IPs
211.231.146.0/24	AS4766	Jusikhoesa iepeutekeunolroji	256

Nearby Ranges

BGP prefixes that overlap with 211.231.0.0/16

Range	ASN	Company	Num of IPs
211.231.96.0/24	AS10158	Korea Telecom	256
211.231.100.0/24	AS38099	Korea Telecom	256
211.231.101.0/24	AS38099	Korea Telecom	256
211.231.102.0/24	AS38099	Korea Telecom	256
211.231.103.0/24	AS38099	Korea Telecom	256
211.231.104.0/24	AS38099	Korea Telecom	256
211.231.105.0/24	AS38099	Korea Telecom	256
211.231.108.0/24	AS38099	Korea Telecom	256
211.231.111.0/24	AS38099	Korea Telecom	256
211.231.97.0/24	AS38099	Korea Telecom	256
211.231.98.0/24	AS38099	Korea Telecom	256
211.231.99.0/24	AS38099	Korea Telecom	256
211.231.39.0/24	AS38422	Seowondaehakgyo	256
211.231.146.0/24	AS4766	Jusikhoesa iepeutekeunolroji	256
211.231.110.0/24	AS9958	Korea Telecom	256

Hosted domains

There are 10 domain names hosted across 9 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
211.231.231.13	tccmetal.co.kr	2
211.231.231.23	tcceng.com	1
211.231.231.4	tccsteel.com	1
211.231.139.7	mag-ax.com	1
211.231.231.2	tccgroup.co.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

1,212 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
211.231.237.172	AS4766 Korea Telecom	`1.85ms` from Seoul, KR
211.231.137.73	AS4766 Korea Telecom	`6.60ms` from Seoul, KR
211.231.146.55	AS4766 Korea Telecom	`7.01ms` from Seoul, KR
211.231.138.223	AS4766 Korea Telecom	`6.65ms` from Seoul, KR
211.231.234.172	AS4766 Korea Telecom	`1.56ms` from Seoul, KR
211.231.231.174	AS4766 Korea Telecom	`1.07ms` from Seoul, KR
211.231.238.100	AS4766 Korea Telecom	`2.71ms` from Seoul, KR
211.231.213.15	AS4766 Korea Telecom	`1.31ms` from Seoul, KR
211.231.139.176	AS4766 Korea Telecom	`6.69ms` from Seoul, KR
211.231.199.169	AS4766 Korea Telecom	`3.97ms` from Seoul, KR
211.231.151.1	AS4766 Korea Telecom	`3.10ms` from Seoul, KR
211.231.215.195	AS4766 Korea Telecom	`3.59ms` from Seoul, KR
211.231.212.193	AS4766 Korea Telecom	`3.78ms` from Seoul, KR
211.231.196.83	AS4766 Korea Telecom	`1.93ms` from Seoul, KR
211.231.227.169	AS4766 Korea Telecom	`2.08ms` from Seoul, KR
211.231.228.151	AS4766 Korea Telecom	`1.89ms` from Seoul, KR
211.231.136.91	AS4766 Korea Telecom	`6.65ms` from Seoul, KR
211.231.129.65	AS4766 Korea Telecom	`3.00ms` from Seoul, KR
211.231.197.1	AS4766 Korea Telecom	`3.77ms` from Seoul, KR
211.231.208.88	AS4766 Korea Telecom	`3.89ms` 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
213.127.250.97	AS33915 Vodafone Libertel B.V.	`3.00ms` from Amsterdam, NL
75.181.160.1	AS11426 Charter Communications Inc	`6.27ms` from Atlanta, US
81.184.4.33	AS6739 VODAFONE ONO, S.A.	`3.24ms` from Barcelona, ES
180.189.152.81	AS9268 Over The Wire Pty Ltd	`0.20ms` from Brisbane, AU
31.24.186.1	AS44789 KabelszatNet-2002. Musoreloszto es Kereskedelmi Kft.	`5.66ms` from Budapest, HU
152.171.198.1	AS7303 Telecom Argentina S.A.	`13.43ms` from Buenos Aires, AR
181.169.166.1	AS7303 Telecom Argentina S.A.	`0.97ms` from Buenos Aires, AR
13.244.154.161	AS16509 Amazon.com, Inc.	`0.12ms` from Cape Town, ZA
223.159.214.1	AS4134 CHINANET-BACKBONE	`3.63ms` from Changsha, CN
200.96.37.49	AS8167 V tal	`7.07ms` from Curitiba, BR
123.19.200.225	AS45899 VNPT Corp	`2.43ms` from Da Nang, VN
108.200.108.1	AS7018 AT&T Enterprises, LLC	`9.90ms` from Dallas, US
14.194.153.1	AS45820 Tata Teleservices ISP AS	`1.29ms` from Delhi, IN
69.144.35.129	AS33588 Charter Communications LLC	`4.08ms` from Denver, US
78.100.225.129	AS8781 Ooredoo Q.S.C.	`0.22ms` from Doha, QA
95.208.28.1	AS3209 Vodafone GmbH	`6.53ms` from Frankfurt am Main, DE
195.124.197.161	AS702 Verizon Business	`8.78ms` from Frankfurt am Main, DE
157.122.62.1	AS17622 China Unicom Guangzhou network	`2.16ms` from Guangzhou, CN
27.79.125.1	AS7552 Viettel Group	`10.79ms` from Hanoi, VN
194.100.41.177	AS16086 DNA Oyj	`0.89ms` from Helsinki, FI
95.183.178.1	AS8517 National Academic Network and Information Center	`3.02ms` from Istanbul, TR
88.232.136.1	AS9121 Turk Telekomunikasyon Anonim Sirketi	`6.35ms` from Istanbul, TR
107.151.63.1	AS19504 WTC Communications, Inc.	`3.84ms` from Kansas City, US
206.116.255.225	AS852 TELUS Communications Inc.	`5.40ms` from Kelowna, CA
67.222.202.1	AS16604 HUNTEL.NET	`2.79ms` from Lincoln, US

Traceroute

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

traceroute -a -n -q1 -m9 211.231.128.179

traceroute to 211.231.128.179 (211.231.128.179): 9 hops max, 52 byte packets

1 [AS7195] 200.25.47.17 0.225 ms

2 *

3 [AS3356] 4.69.219.45 129.561 ms

4 [AS3356] 4.68.37.206 116.777 ms

5 *

6 [AS4766] 112.174.91.221 255.532 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Lima, PE

On December 28th 2025

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