211.253.124.0/24

AS17841 · NATIONAL INFORMATION RESOURCES SERVICE

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Summary

Country	South Korea
Domain	kt.com
ASN	AS17841
Registry	KRNIC
ID	KORNET-KR

WHOIS Details

inetnum:        211.253.120.0 - 211.253.127.255
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:        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

Nearby Ranges

BGP prefixes that overlap with 211.253.0.0/16

Range	ASN	Company	Num of IPs
211.253.176.0/20	AS10176	Korea Telecom	4,096
211.253.72.0/21	AS9531	Korea Telecom	2,048
211.253.68.0/22	AS9531	Gwangjugwangyeoksigyoyukcheong	1,024
211.253.61.0/24	AS17574	KT	256
211.253.61.0/24	AS17574	KT	256
211.253.60.0/24	AS17841	KT	256
211.253.60.0/24	AS17841	KT	256
211.253.61.0/24	AS17841	KT	256
211.253.61.0/24	AS17841	KT	256
211.253.62.0/24	AS17841	Korea Telecom	256
211.253.65.0/24	AS45400	Korea Telecom	256
211.253.67.0/24	AS45400	Korea Telecom	256
211.253.56.0/24	AS4766	Korea Telecom	256
211.253.59.0/24	AS4766	Baekseokyesuldaehakgyo	256
211.253.60.0/24	AS17574	KT	256
211.253.60.0/24	AS17574	KT	256

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

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

IP Address	ASN	Details
211.253.124.97	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`8.02ms` 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
60.255.196.136	AS4837 CHINA UNICOM China169 Backbone	`11.79ms` from Chengdu, CN
5.103.72.232	AS44869 FIBIA P/S	`0.59ms` from Copenhagen, DK
45.189.15.88	AS269547 TERALINK TELECOMUNICACOES EIRELI	`2.72ms` from Curitiba, BR
2.101.44.120	AS13285 TalkTalk Communications Limited	`1.00ms` from Manchester, GB
68.42.6.216	AS7922 Comcast Cable Communications, LLC	`9.29ms` from Murfreesboro, US
121.83.48.40	AS17511 OPTAGE Inc.	`1.78ms` from Osaka, JP
153.212.223.184	AS4713 NTT DOCOMO BUSINESS,Inc.	`11.09ms` from Osaka, JP
162.205.4.56	AS7018 AT&T Enterprises, LLC	`3.30ms` from San Jose, US
61.31.168.152	AS9924 Taiwan Fixed Network, Telco and Network Service Provider.	`6.85ms` from Taipei, TW
51.84.7.120	AS16509 Amazon.com, Inc.	`1.72ms` from Tel Aviv, IL
80.68.239.40	AS49242 Internet Union Sp. z o.o.	`7.80ms` from Warsaw, PL
20.76.155.216	AS8075 Microsoft Corporation	`0.23ms` from Amsterdam, NL
178.94.234.216	AS214143 SKYDIGITAL TELECOM LTD	`1.10ms` from Bangkok, TH
62.158.128.104	AS3320 Deutsche Telekom AG	`2.91ms` from Berlin, DE
42.84.104.232	AS4837 CHINA UNICOM China169 Backbone	`11.37ms` from Changchun, CN
76.21.79.56	AS7922 Comcast Cable Communications, LLC	`7.19ms` from Fremont, US
42.121.86.8	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.87ms` from Hangzhou, CN
5.133.127.72	AS48011 Turunc Smart Bilgisayar Teknoloji Ve Dis Ticaret Limited Sirketi	`0.16ms` from Istanbul, TR
24.55.145.168	AS3737 PenTeleData Inc.	`12.32ms` from Newark, US
77.140.55.200	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`6.88ms` from Paris, FR
83.193.68.168	AS3215 Orange S.A.	`15.85ms` from Paris, FR
69.225.240.8	AS7018 AT&T Enterprises, LLC	`4.38ms` from Redding, US
213.175.74.200	AS5518 SIA Tet	`0.48ms` from Riga, LV
104.42.7.184	AS8075 Microsoft Corporation	`0.56ms` from San Jose, US
218.41.58.40	AS2527 Sony Network Communications Inc.	`14.56ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 211.253.124.18

traceroute to 211.253.124.18 (211.253.124.18): 64 hops max, 52 byte packets

1 [AS15169] 142.251.49.8 60.056 ms

2 *

3 *

4 *

5 *

6 [AS9318] 39.120.253.82 194.279 ms

7 *

8 *

9 *

10 *

11 [AS17841] 211.253.124.18 198.877 ms

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On December 20th 2025

What are IP address ranges?

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