210.103.82.0/24

AS17841 · NATIONAL INFORMATION RESOURCES SERVICE

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Summary

Country	South Korea
Domain	kt.com
ASN	AS17841
Registry	APNIC
ID	KORNET-KR

WHOIS Details

inetnum:        210.103.80.0 - 210.103.87.255
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:  2025-11-03T08:14:24Z
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:        210.103.80.0 - 210.103.87.255
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 210.103.0.0/16

Range	ASN	Company	Num of IPs
210.103.128.0/17	AS23593	SEJONG NETWORKS	32,768
210.103.128.0/17	AS9848	SEJONG NETWORKS	32,768
210.103.187.0/24	AS131866	Its-in	256
210.103.152.0/24	AS38676	FLEXNET	256
210.103.137.0/24	AS131866	Its-in	256
210.103.154.0/24	AS38676	FLEXNET	256
210.103.155.0/24	AS38676	FLEXNET	256
210.103.176.0/24	AS38676	FLEXNET	256
210.103.153.0/24	AS38676	FLEXNET	256
210.103.138.0/24	AS131866	Its-in	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

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

IP Address	ASN	Details
210.103.82.226	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`9.61ms` 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
197.205.117.200	AS36947 Telecom Algeria	`19.36ms` from Algiers, DZ
85.10.186.248	AS35470 Signet B.V.	`0.68ms` from Amsterdam, NL
24.183.157.120	AS20115 Charter Communications LLC	`19.47ms` from Ashburn, US
162.234.203.200	AS7018 AT&T Enterprises, LLC	`4.96ms` from Atlanta, US
75.169.155.120	AS209 CenturyLink Communications, LLC	`3.31ms` from Draper, US
73.161.72.88	AS7922 Comcast Cable Communications, LLC	`12.09ms` from Flint, US
139.144.181.40	AS63949 Akamai Connected Cloud	`0.12ms` from Frankfurt am Main, DE
163.229.244.168	AS4766 Korea Telecom	`9.11ms` from Incheon, KR
178.151.180.120	AS13188 CONTENT DELIVERY NETWORK LTD	`0.94ms` from Kyiv, UA
104.78.173.24	AS16625 Akamai Technologies, Inc.	`0.40ms` from London, GB
94.5.158.152	AS5607 Sky UK Limited	`10.65ms` from London, GB
99.29.240.216	AS7018 AT&T Enterprises, LLC	`13.69ms` from Manassas, US
190.29.97.168	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`1.97ms` from Medellin, CO
47.18.186.168	AS6128 Cablevision Systems Corp.	`8.25ms` from New York City, US
221.0.124.104	AS4837 CHINA UNICOM China169 Backbone	`4.43ms` from Qingdao, CN
188.243.252.216	AS35807 SkyNet Ltd.	`0.91ms` from Saint Petersburg, RU
178.224.47.40	AS50266 Odido Netherlands B.V.	`3.48ms` from Amsterdam, NL
35.93.35.216	AS16509 Amazon.com, Inc.	`0.56ms` from Boardman, US
157.137.215.200	AS31898 Oracle Corporation	`0.17ms` from Bogota, CO
140.192.52.120	AS20130 Depaul University	`1.15ms` from Chicago, US
63.32.175.24	AS16509 Amazon.com, Inc.	`0.30ms` from Dublin, IE
213.190.108.88	AS25509 Hringidan ehf / Vortex Inc	`5.58ms` from Hafnarfjoerdur, IS
106.208.235.40	AS45609 Bharti Airtel Ltd. AS for GPRS Service	`6.91ms` from Kolkata, IN
37.25.121.216	AS31272 WildPark Co	`8.82ms` from Kyiv, UA
69.25.1.24	AS12180 Unitas Global	`0.31ms` from Miami, US

Traceroute

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

traceroute -a -n -q1 -f2 210.103.82.201

traceroute to 210.103.82.201 (210.103.82.201): 64 hops max, 52 byte packets

2 [] 193.239.117.168 18.443 ms

3 *

4 *

5 *

6 [AS3786] 203.233.86.226 226.093 ms

7 *

8 *

9 *

10 *

11 [AS17841] 210.103.83.114 218.629 ms

12 [AS17841] 210.103.82.201 1063.172 ms

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On January 30th 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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