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
211.253.62.0/24	AS17841	Korea Telecom	256
211.253.60.0/24	AS17841	KT	256
211.253.60.0/24	AS17841	KT	256
211.253.65.0/24	AS45400	Korea Telecom	256
211.253.67.0/24	AS45400	Korea Telecom	256
211.253.59.0/24	AS4766	Baekseokyesuldaehakgyo	256
211.253.56.0/24	AS4766	Korea Telecom	256
211.253.61.0/24	AS17574	KT	256
211.253.61.0/24	AS17574	KT	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
211.253.124.67	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`8.30ms` 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
184.24.16.248	AS16625 Akamai Technologies, Inc.	`0.43ms` from Amsterdam, NL
20.86.17.184	AS8075 Microsoft Corporation	`0.35ms` from Amsterdam, NL
172.208.48.24	AS8075 Microsoft Corporation	`0.43ms` from Ashburn, US
123.120.207.72	AS4808 China Unicom Beijing Province Network	`3.72ms` from Beijing, CN
161.142.222.232	AS9930 TTNET	`5.85ms` from Kuala Lumpur, MY
86.132.131.88	AS2856 British Telecommunications PLC	`10.38ms` from London, GB
179.184.213.136	AS18881 TELEFÔNICA BRASIL S.A	`0.84ms` from Rio de Janeiro, BR
98.237.217.200	AS7922 Comcast Cable Communications, LLC	`5.81ms` from Seattle, US
4.205.82.216	AS8075 Microsoft Corporation	`0.19ms` from Toronto, CA
206.45.75.136	AS7122 Bell Canada	`1.00ms` from Winnipeg, CA
182.127.189.184	AS4837 CHINA UNICOM China169 Backbone	`1.97ms` from Zhengzhou, CN
24.63.246.24	AS7922 Comcast Cable Communications, LLC	`9.20ms` from Boston, US
177.43.76.216	AS18881 TELEFÔNICA BRASIL S.A	`6.82ms` from Brasilia, BR
178.41.209.24	AS6855 Slovak Telekom, a.s.	`1.38ms` from Bratislava, SK
196.117.11.88	AS36925 MEDITELECOM	`5.58ms` from Casablanca, MA
2.7.45.248	AS3215 Orange S.A.	`3.05ms` from Lyon, FR
189.224.199.120	AS8151 UNINET	`2.10ms` from Monterrey, MX
179.26.153.184	AS6057 Administracion Nacional de Telecomunicaciones	`1.70ms` from Montevideo, UY
204.19.30.24	AS376 Reseau d'Informations Scientifiques du Quebec (RISQ Inc.)	`8.57ms` from Montreal, CA
109.198.204.56	AS12389 PJSC Rostelecom	`11.70ms` from Moscow, RU
191.54.30.72	AS53006 ALGAR TELECOM S/A	`1.20ms` from Osasco, BR
185.246.148.248	AS204570 KAZA.cz s.r.o.	`6.86ms` from Prague, CZ
27.50.12.248	AS264825 TELEALFACOM S.A.S.	`6.34ms` from Quito, EC
139.224.124.120	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`3.14ms` from Shanghai, CN
145.46.171.200	AS16509 Amazon.com, Inc.	`0.60ms` from Sydney, AU

Traceroute

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

traceroute -a -n -q1 211.253.124.218

traceroute to 211.253.124.218 (211.253.124.218): 64 hops max, 52 byte packets

1 [AS15169] 172.253.64.138 1.712 ms

2 [AS9286] 121.78.63.73 2.149 ms

3 [AS9286] 203.246.162.161 2.418 ms

4 [] 139.150.100.124 4.245 ms

5 *

6 *

7 *

8 *

9 [AS17841] 211.253.124.10 9.871 ms

10 *

11 [AS17841] 211.253.124.218 10.387 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On April 24th 2026

What are IP address ranges?

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