211.217.11.0/24

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 211.217.11.0/24

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 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
211.217.11.26	happyschoolnet.org	1
211.217.11.23	tkinfo.net	1

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

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

IP Address	ASN	Details
211.217.11.26	AS4961 Daewoo Information Systems	`3.08ms` 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
24.211.177.136	AS11426 Charter Communications Inc	`10.24ms` from Charlotte, US
174.24.110.120	AS209 CenturyLink Communications, LLC	`2.38ms` from Denver, US
197.69.129.168	AS12091 MTN SA	`18.93ms` from Durban, ZA
34.92.125.72	AS396982 Google LLC	`0.12ms` from Hong Kong, HK
222.105.91.200	AS4766 Korea Telecom	`4.49ms` from Incheon, KR
86.28.238.216	AS5089 Virgin Media Limited	`8.33ms` from London, GB
82.186.137.248	AS3269 Telecom Italia S.p.A.	`2.87ms` from Milan, IT
116.222.41.184	AS9824 JCOM Co., Ltd.	`8.15ms` from Osaka, JP
58.234.167.24	AS9318 SK Broadband Co Ltd	`1.07ms` from Seoul, KR
24.76.50.8	AS6327 Shaw Communications	`7.36ms` from Winnipeg, CA
139.38.169.72	AS5972 United States Department of Defense (DoD)	`10.14ms` from Frankfurt am Main, DE
77.179.117.200	AS6805 Telefonica Germany GmbH & Co.OHG	`2.58ms` from Frankfurt am Main, DE
90.15.16.152	AS3215 Orange S.A.	`5.85ms` from Le Lamentin, MQ
176.251.28.8	AS5607 Sky UK Limited	`2.40ms` from London, GB
2.125.40.56	AS5607 Sky UK Limited	`5.25ms` from London, GB
84.42.31.136	AS21378 PJSC Rostelecom	`7.12ms` from Moscow, RU
183.151.235.104	AS4134 CHINANET-BACKBONE	`6.33ms` from Ningbo, CN
54.82.207.120	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
191.185.134.8	AS28573 Claro NXT Telecomunicacoes Ltda	`8.84ms` from Rio de Janeiro, BR
119.192.254.88	AS4766 Korea Telecom	`1.23ms` from Seoul, KR
219.255.213.216	AS9318 SK Broadband Co Ltd	`1.36ms` from Seoul, KR
120.232.142.104	AS56040 China Mobile communications corporation	`9.54ms` from Shenzhen, CN
120.156.106.56	AS1221 Telstra Limited	`8.19ms` from Sydney, AU
117.102.186.168	AS2514 NTT PC Communications, Inc.	`2.00ms` from Tokyo, JP
142.122.104.40	AS577 Bell Canada	`2.46ms` from Toronto, CA

Traceroute

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

traceroute -a -n -q1 -f7 211.217.11.5

traceroute to 211.217.11.5 (211.217.11.5): 64 hops max, 52 byte packets

7 [AS3786] 1.213.115.86 3.297 ms

8 *

9 [AS3786] 115.90.21.122 2.768 ms

10 [AS4961] 152.149.237.2 3.116 ms

11 [AS4961] 152.149.237.50 2.664 ms

12 [AS4961] 152.149.49.254 2.845 ms

13 [AS4961] 152.149.59.94 3.937 ms

14 [AS4961] 211.217.11.5 3.828 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On March 21st 2026

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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