210.104.128.0/24

AS9647 · Seoul Metropolitan Government

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Summary

Country	South Korea
Domain	kt.com
ASN	AS9647
Registry	APNIC
ID	KORNET

WHOIS Details

inetnum:        210.104.128.0 - 210.104.143.255
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:  2025-11-03T08:14:27Z
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:        210.104.128.0 - 210.104.143.255
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

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

IP Address	ASN	Details
210.104.128.186	AS9647 Seoul Metropolitan Government	`1.87ms` 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
94.70.70.152	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`8.68ms` from Athens, GR
123.122.81.200	AS4808 China Unicom Beijing Province Network	`3.56ms` from Beijing, CN
178.222.158.8	AS8400 TELEKOM SRBIJA a.d.	`7.72ms` from Belgrade, RS
45.246.145.200	AS24863 Link Egypt (Link.NET)	`19.51ms` from Cairo, EG
138.113.87.248	AS54994 Meteverse Limited.	`0.99ms` from Hong Kong, HK
46.33.36.56	AS31593 TV Company "Black Sea" Ltd	`7.09ms` from Kyiv, UA
79.22.203.72	AS3269 Telecom Italia S.p.A.	`6.75ms` from Milan, IT
41.90.233.152	AS37061 Safaricom Limited	`2.07ms` from Mombasa, KE
171.39.93.248	AS4837 CHINA UNICOM China169 Backbone	`11.73ms` from Nanning, CN
45.143.185.168	AS198022 STARFACE GmbH	`0.47ms` from Nuernberg, DE
193.251.84.168	AS3215 Orange S.A.	`2.19ms` from Paris, FR
60.215.2.184	AS4837 CHINA UNICOM China169 Backbone	`5.25ms` from Qingdao, CN
54.81.61.200	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
40.112.254.200	AS8075 Microsoft Corporation	`0.55ms` from San Jose, US
186.207.100.168	AS28573 Claro NXT Telecomunicacoes Ltda	`7.80ms` from Sao Paulo, BR
73.109.53.136	AS7922 Comcast Cable Communications, LLC	`1.16ms` from Seattle, US
61.250.155.40	AS38661 abcle	`1.16ms` from Seoul, KR
118.38.164.56	AS4766 Korea Telecom	`6.66ms` from Seoul, KR
175.213.85.168	AS4766 Korea Telecom	`1.56ms` from Seoul, KR
27.100.138.136	AS9946 KCTV JEJU BROADCASTING	`9.35ms` from Seoul, KR
161.117.251.152	AS45102 Alibaba (US) Technology Co., Ltd.	`0.90ms` from Singapore, SG
42.58.77.24	AS4837 CHINA UNICOM China169 Backbone	`6.45ms` from Tieling, CN
180.21.151.104	AS4713 NTT DOCOMO BUSINESS,Inc.	`4.42ms` from Tokyo, JP
105.100.49.72	AS36947 Telecom Algeria	`9.06ms` from Valencia, ES
178.216.92.120	AS44454 Czestochowska Spoldzielnia Mieszkaniowa "Nasza Praca"	`6.45ms` from Wrocław, PL

Traceroute

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

traceroute -a -n -q1 210.104.128.186

traceroute to 210.104.128.186 (210.104.128.186): 64 hops max, 52 byte packets

1 [AS31898] 140.91.196.82 0.086 ms

2 [AS3257] 209.120.139.234 3.391 ms

3 [AS3257] 209.120.139.233 1.523 ms

4 [AS3257] 89.149.128.174 59.681 ms

5 [AS3257] 76.74.48.138 52.043 ms

6 [AS4766] 112.174.87.45 258.584 ms

7 [AS4766] 112.174.91.29 181.284 ms

8 *

9 *

10 *

11 [AS4766] 211.217.66.78 191.008 ms

12 [AS9647] 202.14.90.136 194.309 ms

13 [AS9647] 202.14.90.140 193.906 ms

14 [AS9647] 202.14.90.213 195.014 ms

15 [AS9647] 202.14.90.219 184.722 ms

16 [AS9647] 202.14.90.218 188.906 ms

17 *

18 *

19 [AS9647] 210.104.128.186 198.066 ms

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On January 19th 2026

What are IP address ranges?

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