211.253.236.0/23

AS9955 · Baekseok University

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Summary

Country	South Korea
Domain	kt.com
ASN	AS9955
Registry	KRNIC
ID	KORNET-KR

WHOIS Details

inetnum:        211.253.224.0 - 211.253.251.255
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:        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

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

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

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
176.182.218.247	AS5410 Bouygues Telecom SA	`2.24ms` from Aubervilliers, FR
40.70.224.119	AS8075 Microsoft Corporation	`0.17ms` from Boydton, US
183.215.50.55	AS56047 China Mobile communications corporation	`1.46ms` from Changsha, CN
74.206.36.7	AS393892 Mid Century Communications	`6.29ms` from Chicago, US
194.168.131.135	AS5089 Virgin Media Limited	`6.69ms` from London, GB
95.127.97.199	AS3352 TELEFONICA DE ESPANA S.A.U.	`16.25ms` from Madrid, ES
192.147.17.7	AS11360 Electronics for Imaging, Inc.	`2.08ms` from San Jose, US
47.74.253.39	AS45102 Alibaba (US) Technology Co., Ltd.	`0.73ms` from Singapore, SG
183.187.186.247	AS4837 CHINA UNICOM China169 Backbone	`7.91ms` from Taiyuan, CN
131.213.113.231	AS2527 Sony Network Communications Inc.	`8.35ms` from Tokyo, JP
102.158.167.151	AS37705 TOPNET	`2.19ms` from Tunis, TN
141.138.8.151	AS13046 Hrvatski Telekom d.d.	`0.82ms` from Zagreb, HR
5.225.85.183	AS12430 VODAFONE ESPANA S.A.U.	`3.88ms` from Barcelona, ES
101.16.24.87	AS4837 CHINA UNICOM China169 Backbone	`10.19ms` from Beijing, CN
82.131.143.87	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	`10.34ms` from Budapest, HU
206.238.232.167	AS399077 Tcloudnet	`1.66ms` from Hong Kong, HK
136.48.25.119	AS16591 Google Fiber Inc.	`4.44ms` from Kansas City, US
221.226.69.87	AS4134 CHINANET-BACKBONE	`1.22ms` from Nanjing, CN
88.90.157.183	AS2119 Telenor Norge AS	`13.74ms` from Oslo, NO
46.13.77.7	AS13036 T-Mobile Czech Republic a.s.	`2.37ms` from Prague, CZ
173.254.35.151	AS46606 Unified Layer	`1.94ms` from Salt Lake City, US
183.114.46.215	AS4766 Korea Telecom	`1.87ms` from Seoul, KR
191.104.76.167	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`2.58ms` from Bogota, CO
84.192.135.7	AS6848 Telenet BV	`6.16ms` from Brussels, BE
35.223.220.215	AS396982 Google LLC	`0.12ms` from Council Bluffs, US

Traceroute

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

traceroute -a -n -q1 -f3 -m6 211.253.237.110

traceroute to 211.253.237.110 (211.253.237.110): 6 hops max, 52 byte packets

3 [AS749] 21.252.32.1 1.057 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Zhongwei, CN

On September 5th 2025

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.

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