210.104.103.0/24

AS9647 · Seoul Metropolitan Government

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Summary

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

WHOIS Details

inetnum:        210.104.100.0 - 210.104.103.255
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:  2025-11-03T08:14:26Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        9, Jinheung-gil, Naju-si, Jeollanam-do
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
nic-hdl:        IM667-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2017-03-28T06:37:04Z
source:         APNIC

inetnum:        210.104.100.0 - 210.104.103.255
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:         [email protected]
nic-hdl:        IA9-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected] 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:         [email protected]
nic-hdl:        IM9-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected] 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 3 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
210.104.103.201	ddm.go.kr	2
210.104.103.166	dbs.go.kr	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

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Pingable IPs

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

IP Address	ASN	Details
210.104.103.104	AS9647 Seoul Metropolitan Government	`1.97ms` 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
75.143.174.104	AS20115 Charter Communications LLC	`8.47ms` from Atlanta, US
184.81.122.104	AS7029 Windstream Communications LLC	`0.45ms` from Atlanta, US
156.196.182.152	AS8452 TE-AS	`4.64ms` from Cairo, EG
189.172.201.24	AS8151 UNINET	`12.26ms` from Cancún, MX
106.81.172.152	AS4134 CHINANET-BACKBONE	`8.35ms` from Chongqing, CN
98.36.43.24	AS7922 Comcast Cable Communications, LLC	`7.64ms` from Fremont, US
85.105.128.88	AS9121 Turk Telekomunikasyon Anonim Sirketi	`1.86ms` from Istanbul, TR
46.164.29.232	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`1.02ms` from Ljubljana, SI
86.144.194.72	AS2856 British Telecommunications PLC	`2.17ms` from London, GB
90.215.30.136	AS5607 Sky UK Limited	`11.16ms` from London, GB
158.130.69.24	AS55 University of Pennsylvania	`3.45ms` from New York City, US
91.53.146.56	AS3320 Deutsche Telekom AG	`7.23ms` from Nuernberg, DE
194.164.76.232	AS47583 Hostinger International Limited	`0.51ms` from Paris, FR
92.222.135.72	AS16276 OVH SAS	`0.08ms` from Roubaix, FR
47.117.119.168	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.62ms` from Shanghai, CN
116.87.112.136	AS55430 Starhub Ltd	`1.30ms` from Singapore, SG
103.70.182.136	AS9311 HITRON TECHNOLOGY INC.	`0.70ms` from Taipei, TW
188.42.71.200	AS7979 Servers.com, Inc.	`0.20ms` from Amsterdam, NL
52.34.132.248	AS16509 Amazon.com, Inc.	`0.20ms` from Boardman, US
47.161.27.136	AS5650 Frontier Communications of America, Inc.	`1.57ms` from Dallas, US
112.92.39.8	AS17816 China Unicom IP network China169 Guangdong province	`9.92ms` from Guangzhou, CN
70.181.235.200	AS22773 Cox Communications Inc.	`8.96ms` from Los Angeles, US
119.199.145.8	AS4766 Korea Telecom	`8.57ms` from Seoul, KR
62.72.44.248	AS141995 Contabo Asia Private Limited	`0.18ms` from Singapore, SG
126.77.125.8	AS17676 SoftBank Corp.	`2.92ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 210.104.103.171

traceroute to 210.104.103.171 (210.104.103.171): 64 hops max, 52 byte packets

1 [AS199524] 92.223.73.2 0.13 ms

2 *

3 *

4 [AS9286] 121.78.68.49 0.864 ms

5 [AS9286] 203.246.162.129 0.664 ms

6 [AS4766] 128.134.40.145 0.907 ms

7 *

8 *

9 *

10 *

11 [AS4766] 211.217.66.78 2.415 ms

12 [AS9647] 202.14.90.136 2.093 ms

13 [AS9647] 202.14.90.141 1.389 ms

14 [AS9647] 202.14.90.214 1.498 ms

15 [AS9647] 202.14.90.218 1.825 ms

16 [AS9647] 202.14.90.219 2.307 ms

17 *

18 *

19 *

20 *

21 [AS9647] 203.128.239.166 3.073 ms

22 *

23 [AS9647] 210.104.103.171 2.36 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On December 20th 2025

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.

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