211.253.82.0/24

AS17841 · NATIONAL INFORMATION RESOURCES SERVICE

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Summary

Country	South Korea
Domain	kt.com
ASN	AS17841
Registry	APNIC
ID	KORNET

WHOIS Details

inetnum:        211.253.80.0 - 211.253.83.255
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:  2025-11-03T08:15:05Z
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:        211.253.80.0 - 211.253.83.255
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

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

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

IP Address	ASN	Details
211.253.82.236	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`2.86ms` 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
34.211.42.8	AS16509 Amazon.com, Inc.	`0.18ms` from Boardman, US
109.130.226.120	AS5432 Proximus NV	`2.17ms` from Brussels, BE
38.101.42.104	AS174 Cogent Communications, LLC	`0.42ms` from Buffalo, US
47.26.82.120	AS20115 Charter Communications LLC	`9.56ms` from Chicago, US
108.78.246.88	AS7018 AT&T Enterprises, LLC	`19.66ms` from Chicago, US
68.143.46.88	AS7029 Windstream Communications LLC	`0.33ms` from Dallas, US
146.198.213.8	AS6871 Plusnet	`11.23ms` from Erith, GB
90.232.79.184	AS3301 Telia Company AB	`7.69ms` from Goeteborg, SE
88.248.102.152	AS9121 Turk Telekomunikasyon Anonim Sirketi	`2.37ms` from Izmir, TR
169.159.212.200	AS37453 Vodacom Congo	`0.41ms` from Kinshasa, CD
86.186.171.152	AS2856 British Telecommunications PLC	`3.12ms` from London, GB
199.47.187.152	AS396982 Google LLC	`0.08ms` from Melbourne, AU
97.220.141.232	AS6167 Verizon Business	`14.97ms` from Miami, US
151.30.111.88	AS1267 WIND TRE S.P.A.	`3.86ms` from Milan, IT
94.232.45.24	AS64439 RocketCloud.ru	`9.78ms` from Moscow, RU
87.181.95.72	AS3320 Deutsche Telekom AG	`4.69ms` from Nuernberg, DE
87.88.231.104	AS5410 Bouygues Telecom SA	`7.69ms` from Paris, FR
13.53.222.152	AS16509 Amazon.com, Inc.	`0.15ms` from Stockholm, SE
54.187.75.104	AS16509 Amazon.com, Inc.	`0.18ms` from Boardman, US
217.228.180.40	AS3320 Deutsche Telekom AG	`3.43ms` from Duesseldorf, DE
114.135.55.136	AS4134 CHINANET-BACKBONE	`3.50ms` from Guiyang, CN
70.112.152.136	AS11427 Charter Communications Inc	`10.19ms` from Houston, US
104.173.23.120	AS20001 Charter Communications Inc	`3.62ms` from Los Angeles, US
34.111.212.88	AS396982 Google LLC	`0.07ms` from Melbourne, AU
27.207.247.184	AS4837 CHINA UNICOM China169 Backbone	`8.39ms` from Qingdao, CN

Traceroute

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

traceroute -a -n -q1 211.253.82.138

traceroute to 211.253.82.138 (211.253.82.138): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.43 0.069 ms

2 [AS3786] 211.118.152.142 0.992 ms

3 *

4 *

5 *

6 *

7 [AS3786] 1.208.165.14 1.744 ms

8 [AS3786] 1.208.149.170 1.757 ms

9 [AS3786] 210.107.53.198 1.741 ms

10 *

11 *

12 *

13 *

14 [AS17841] 211.253.82.138 5.714 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On January 30th 2026

What are IP address ranges?

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