211.217.20.0/24

AS4961 · Daewoo Information Systems

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Summary

Country	South Korea
Domain	kt.com
ASN	AS4961
Parent Range	211.216.0.0/13
Registry	APNIC
ID	KORNET

WHOIS Details

inetnum:        211.216.0.0 - 211.223.255.255
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:  2025-11-03T08:14:58Z
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:        211.216.0.0 - 211.223.255.255
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

Overlapping Ranges

BGP prefixes that contain 211.217.20.0/24

Range	ASN	Company	Num of IPs
211.216.0.0/13	AS152214	Korea Telecom	524,288
211.216.0.0/13	AS17859	Korea Telecom	524,288
211.216.0.0/13	AS38089	Korea Telecom	524,288
211.216.0.0/13	AS38404	Korea Telecom	524,288
211.216.0.0/13	AS9318	Korea Telecom	524,288
211.216.0.0/13	AS4766	Korea Telecom	524,288
211.216.0.0/13	AS4961	Korea Telecom	524,288

Nearby Ranges

BGP prefixes that overlap with 211.217.0.0/16

Range	ASN	Company	Num of IPs
211.216.0.0/13	AS4961	Korea Telecom	524,288
211.216.0.0/13	AS9318	Korea Telecom	524,288
211.216.0.0/13	AS17859	Korea Telecom	524,288
211.216.0.0/13	AS38089	Korea Telecom	524,288
211.216.0.0/13	AS38404	Korea Telecom	524,288
211.216.0.0/13	AS152214	Korea Telecom	524,288
211.216.0.0/13	AS4766	Korea Telecom	524,288
211.217.201.0/24	AS9967	Korea Telecom	256
211.217.200.0/24	AS45362	Teuseutonjasanunyong(ju)	256
211.217.195.0/24	AS131843	Hanguktujasintakunyong	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

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
174.55.191.72	AS7922 Comcast Cable Communications, LLC	`17.71ms` from Ashburn, US
221.8.195.88	AS4837 CHINA UNICOM China169 Backbone	`7.81ms` from Changchun, CN
68.37.209.8	AS7922 Comcast Cable Communications, LLC	`8.12ms` from Flint, US
27.72.139.24	AS7552 Viettel Group	`1.12ms` from Hanoi, VN
134.65.204.24	AS978 Shamrock Trading Corporation	`1.01ms` from Kansas City, US
64.91.247.200	AS32244 Liquid Web, L.L.C	`0.18ms` from Lansing, US
86.186.73.72	AS2856 British Telecommunications PLC	`4.81ms` from London, GB
135.196.77.104	AS3257 GTT Communications Inc.	`8.72ms` from London, GB
157.0.180.40	AS4837 CHINA UNICOM China169 Backbone	`10.01ms` from Nanjing, CN
47.103.154.248	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.94ms` from Shanghai, CN
122.30.49.56	AS4713 NTT DOCOMO BUSINESS,Inc.	`7.09ms` from Tokyo, JP
5.79.217.56	AS8369 Intersvyaz-2 JSC	`4.11ms` from Yekaterinburg, RU
3.213.71.40	AS14618 Amazon.com, Inc.	`0.49ms` from Ashburn, US
44.194.185.184	AS14618 Amazon.com, Inc.	`0.53ms` from Ashburn, US
24.254.194.40	AS22773 Cox Communications Inc.	`6.49ms` from Ashburn, US
210.14.141.72	AS56019 Beijing ShuJuJia Technology Co., Ltd.	`5.22ms` from Beijing, CN
178.220.221.88	AS8400 TELEKOM SRBIJA a.d.	`1.15ms` from Belgrade, RS
38.127.124.8	AS174 Cogent Communications, LLC	`0.20ms` from Boca Raton, US
105.69.36.152	AS36884 Wana Corporate	`8.62ms` from Casablanca, MA
105.155.247.40	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`4.56ms` from Casablanca, MA
209.169.98.216	AS6300 Fidium	`4.64ms` from Dallas, US
217.154.119.152	AS8560 IONOS SE	`2.73ms` from Frankfurt am Main, DE
91.125.1.120	AS6871 Plusnet	`4.06ms` from London, GB
176.138.19.184	AS5410 Bouygues Telecom SA	`5.22ms` from Marseille, FR
119.45.239.24	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.12ms` from Nanjing, CN

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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