210.90.80.0/24

AS45400 · Korea Telecom

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Summary

Country	South Korea
Domain	kt.com
ASN	AS45400
Registry	KRNIC
ID	KORNET-KR

WHOIS Details

inetnum:        210.90.0.0 - 210.90.131.255
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
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

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

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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
52.252.210.40	AS8075 Microsoft Corporation	`0.33ms` from Chicago, US
218.7.8.216	AS4837 CHINA UNICOM China169 Backbone	`16.04ms` from Dalian, CN
77.181.25.56	AS6805 Telefonica Germany GmbH & Co.OHG	`4.36ms` from Frankfurt am Main, DE
156.20.30.8	AS16728 Mattel, Inc.	`1.89ms` from Hong Kong, HK
81.97.166.120	AS5089 Virgin Media Limited	`8.79ms` from London, GB
168.235.81.120	AS3842 InMotion Hosting, Inc.	`1.15ms` from New York City, US
52.140.54.8	AS8075 Microsoft Corporation	`0.14ms` from Saint Thomas Mount, IN
18.144.66.136	AS16509 Amazon.com, Inc.	`0.12ms` from San Jose, US
179.228.196.56	AS26599 TELEFÔNICA BRASIL S.A	`1.62ms` from Sao Paulo, BR
182.226.154.232	AS17858 LG POWERCOMM	`1.89ms` from Seoul, KR
114.47.161.72	AS3462 Data Communication Business Group	`3.45ms` from Taichung, TW
120.124.162.248	AS1659 Taiwan Academic Network (TANet) Information Center	`2.38ms` from Taipei, TW
92.46.178.8	AS9198 JSC Kazakhtelecom	`2.21ms` from Almaty, KZ
92.70.205.232	AS1136 KPN B.V.	`3.26ms` from Amsterdam, NL
77.161.106.40	AS1136 KPN B.V.	`1.13ms` from Amsterdam, NL
94.218.113.24	AS3209 Vodafone GmbH	`12.62ms` from Berlin, DE
76.101.181.216	AS7922 Comcast Cable Communications, LLC	`9.23ms` from Boca Raton, US
23.97.4.120	AS8075 Microsoft Corporation	`0.69ms` from Boydton, US
149.75.170.200	AS6079 RCN	`4.10ms` from Chicago, US
74.134.188.168	AS10796 Charter Communications Inc	`14.78ms` from Columbus, US
67.10.137.200	AS11427 Charter Communications Inc	`10.72ms` from Dallas, US
52.209.163.120	AS16509 Amazon.com, Inc.	`0.18ms` from Dublin, IE
129.159.11.200	AS31898 Oracle Corporation	`0.31ms` from Frankfurt am Main, DE
81.235.150.248	AS3301 Telia Company AB	`0.87ms` from Goeteborg, SE
84.72.36.152	AS6730 Sunrise GmbH	`5.81ms` from Kloten, CH

Traceroute

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

traceroute -a -n -q1 -m6 210.90.80.0

traceroute to 210.90.80.0 (210.90.80.0): 6 hops max, 52 byte packets

1 [AS3920] 77.247.111.17 0.141 ms

2 [AS3920] 77.247.111.129 0.169 ms

3 [AS13194] 37.9.49.14 0.566 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Tallinn, EE

On September 11th 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.

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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