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  2. 210.0.0.0/8
  3. 210.104.0.0/16
  4. AS17584  | 210.104.203.0/24

210.104.203.0/24

AS17584  ·  Inchon Metropolitan Office Of Education

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Summary

Country South Korea
Domain kt.com
ASN AS17584
Registry APNIC
ID KORNET

WHOIS Details

inetnum:        210.104.192.0 - 210.104.207.255
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:  2025-11-03T08:14:28Z
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:        210.104.192.0 - 210.104.207.255
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 210.104.0.0/16

Range ASN Company Num of IPs
210.104.10.0/24 AS45400 Korea Telecom 256
210.104.11.0/24 AS45400 Korea Telecom 256
210.104.12.0/24 AS45400 Korea Telecom 256
210.104.123.0/24 AS45400 Korea Telecom 256
210.104.13.0/24 AS45400 Korea Telecom 256
210.104.138.0/24 AS45400 Korea Telecom 256
210.104.14.0/24 AS45400 Korea Telecom 256
210.104.15.0/24 AS45400 Korea Telecom 256
210.104.20.0/24 AS45400 Korea Telecom 256
210.104.22.0/24 AS45400 Korea Telecom 256
210.104.26.0/24 AS45400 Korea Telecom 256
210.104.27.0/24 AS45400 Korea Telecom 256
210.104.28.0/24 AS45400 Korea Telecom 256
210.104.44.0/24 AS45400 Korea Telecom 256
210.104.8.0/24 AS45400 Korea Telecom 256
210.104.9.0/24 AS45400 Korea Telecom 256
210.104.32.0/24 AS4766 ETRIbuseolgukgaboangisulyeonguso 256
210.104.33.0/24 AS4766 ETRIbuseolgukgaboangisulyeonguso 256
210.104.34.0/24 AS4766 KT 256
210.104.39.0/24 AS4766 Samhwajeongi(ju) 256
210.104.21.0/24 AS9683 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

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

IP Address ASN Details
210.104.203.28 AS17584 Inchon Metropolitan Office Of Education 0.63ms from Incheon, 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
4.157.97.248 AS8075 Microsoft Corporation 0.35ms from Ashburn, US
34.161.181.120 AS396982 Google LLC 4.09ms from Atlanta, US
60.207.172.152 AS4808 China Unicom Beijing Province Network 3.94ms from Beijing, CN
106.87.103.200 AS4134 CHINANET-BACKBONE 6.30ms from Chongqing, CN
168.107.33.8 AS31898 Oracle Corporation 0.18ms from Chuncheon, KR
115.164.99.8 AS4818 DiGi Telecommunications Sdn. Bhd. 0.89ms from Kuala Lumpur, MY
72.220.61.8 AS22773 Cox Communications Inc. 8.03ms from Los Angeles, US
79.151.66.200 AS3352 TELEFONICA DE ESPANA S.A.U. 6.57ms from Madrid, ES
73.150.218.120 AS7922 Comcast Cable Communications, LLC 9.23ms from New York City, US
76.147.3.120 AS7922 Comcast Cable Communications, LLC 12.34ms from Seattle, US
116.42.248.40 AS17858 LG POWERCOMM 2.22ms from Seoul, KR
14.34.132.56 AS4766 Korea Telecom 2.03ms from Seoul, KR
60.184.44.248 AS4134 CHINANET-BACKBONE 9.13ms from Shanghai, CN
115.44.115.232 AS17962 ShenZhen Topway Video Communication Co. Ltd 4.51ms from Shenzhen, CN
185.254.242.40 AS202736 WISDOM CLOUD INTERNET TECHNOLOGY PTE. LTD. 0.19ms from Tokyo, JP
134.128.68.136 AS11377 SendGrid, Inc. 0.39ms from Ashburn, US
24.196.175.56 AS20115 Charter Communications LLC 9.96ms from Atlanta, US
124.205.91.136 AS4808 China Unicom Beijing Province Network 3.21ms from Beijing, CN
35.165.105.216 AS16509 Amazon.com, Inc. 0.09ms from Boardman, US
73.161.214.248 AS7922 Comcast Cable Communications, LLC 11.31ms from Flint, US
58.123.53.72 AS9318 SK Broadband Co Ltd 0.91ms from Incheon, KR
151.20.49.216 AS1267 WIND TRE S.P.A. 2.02ms from Milan, IT
118.104.179.40 AS18126 Chubu Telecommunications Company, Inc. 8.86ms from Osaka, JP
123.132.96.200 AS4837 CHINA UNICOM China169 Backbone 8.55ms from Qingdao, CN
49.57.210.200 AS4766 Korea Telecom 1.34ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 210.104.203.41
traceroute to 210.104.203.41 (210.104.203.41): 64 hops max, 52 byte packets
2 [AS199524] 92.223.1.73 0.171 ms
3 *
4 *
5 *
8 *
9 *
10 *
Measurement taken from IPinfo ProbeNet in Incheon, KR
On

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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