211.236.123.0/24

AS45400 · Korea Telecom

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Summary

Country	South Korea
Domain	kt.com
ASN	AS45400
Parent Range	211.236.64.0/18
Registry	KRNIC
ID	KORNET-KR

WHOIS Details

inetnum:        211.236.64.0 - 211.236.127.255
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:        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:        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 contain 211.236.123.0/24

Range	ASN	Company	Num of IPs
211.236.64.0/18	AS45400	Korea Telecom	16,384
211.236.64.0/18	AS45999	Korea Telecom	16,384
211.236.64.0/18	AS4766	Korea Telecom	16,384

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
211.236.123.243	AS45400 Korea Telecom	`4.17ms` 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
50.124.130.40	AS5650 Frontier Communications of America, Inc.	`8.82ms` from Ashburn, US
47.203.146.248	AS5650 Frontier Communications of America, Inc.	`8.10ms` from Miami, US
58.94.45.152	AS4713 NTT Communications Corporation	`12.23ms` from Osaka, JP
14.90.122.88	AS4766 Korea Telecom	`1.78ms` from Seoul, KR
125.132.225.232	AS4766 Korea Telecom	`1.33ms` from Seoul, KR
150.158.13.168	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.76ms` from Shanghai, CN
42.61.155.136	AS3758 SingNet	`1.72ms` from Singapore, SG
219.104.17.184	AS2527 Sony Network Communications Inc.	`2.79ms` from Tokyo, JP
185.73.240.56	AS59741 Marco Sandro Naef	`0.20ms` from Zug, CH
76.160.25.8	AS7029 Windstream Communications LLC	`0.45ms` from Atlanta, US
27.58.96.88	AS24560 Bharti Airtel Ltd., Telemedia Services	`8.77ms` from Delhi, IN
178.13.94.104	AS3209 Vodafone GmbH	`4.71ms` from Duesseldorf, DE
9.223.82.120	AS8075 Microsoft Corporation	`0.18ms` from Gaevle, SE
183.150.37.184	AS4134 CHINANET-BACKBONE	`9.97ms` from Hangzhou, CN
157.20.144.88	AS150279 PT Lintas Network Solusi	`0.54ms` from Jakarta, ID
198.47.240.184	AS10405 Union Pacific Railroad Company	`7.33ms` from Kansas City, US
68.107.107.152	AS22773 Cox Communications Inc.	`10.01ms` from Los Angeles, US
88.35.7.24	AS3269 Telecom Italia S.p.A.	`0.50ms` from Milan, IT
142.105.174.88	AS11351 Charter Communications Inc	`19.66ms` from Newark, US
185.208.94.72	AS2119 Telenor Norge AS	`3.86ms` from Oslo, NO
35.164.156.184	AS16509 Amazon.com, Inc.	`4.50ms` from Portland, US
184.169.223.168	AS16509 Amazon.com, Inc.	`0.12ms` from San Jose, US
74.66.82.232	AS12271 Charter Communications Inc	`3.83ms` from Secaucus, US
123.199.44.88	AS10066 LG HelloVision Corp.	`7.70ms` from Seoul, KR
103.30.161.40	AS9688 LG DACOM Corporation	`5.33ms` 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 -f2 211.236.123.243

traceroute to 211.236.123.243 (211.236.123.243): 64 hops max, 52 byte packets

2 [AS34700] 79.171.125.209 10.108 ms

3 *

4 [AS6939] 184.104.195.108 20.325 ms

5 [AS6939] 184.104.188.54 43.217 ms

6 *

7 *

8 *

9 [AS6939] 64.71.165.22 175.672 ms

10 [AS4766] 112.174.87.97 305.721 ms

11 [AS4766] 112.174.91.165 300.712 ms

12 [AS4766] 112.174.92.90 306.278 ms

13 [AS4766] 203.234.255.226 280.055 ms

14 *

15 *

16 *

17 *

18 [] 211.255.110.82 280.805 ms

19 *

20 *

21 [AS45400] 211.236.123.243 259.375 ms

Measurement taken from

IPinfo ProbeNet in Kharkiv, UA

On September 11th 2025

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