210.123.39.0/24

AS18176 · KOOKMIN UNIVERSITY

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Summary

Country	South Korea
Domain	kt.com
ASN	AS18176
Registry	KRNIC
ID	KORNET-KR

WHOIS Details

inetnum:        210.123.0.0 - 210.123.127.255
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:        [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:        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 210.123.0.0/16

No nearby ranges found.

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

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

IP Address	ASN	Details
210.123.39.244	AS18176 KOOKMIN UNIVERSITY	`1.77ms` 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
41.37.100.8	AS8452 TE-AS	`7.07ms` from Cairo, EG
68.228.169.136	AS22773 Cox Communications Inc.	`8.18ms` from Dallas, US
88.78.37.8	AS3209 Vodafone GmbH	`6.92ms` from Duesseldorf, DE
35.220.218.8	AS396982 Google LLC	`0.12ms` from Hong Kong, HK
68.234.78.216	AS397122 Chequamegon Communications Cooperative, Inc.	`6.19ms` from Minneapolis, US
66.41.90.24	AS7922 Comcast Cable Communications, LLC	`3.06ms` from Minneapolis, US
27.219.113.152	AS4837 CHINA UNICOM China169 Backbone	`3.04ms` from Qingdao, CN
220.71.178.152	AS4766 Korea Telecom	`5.52ms` from Seoul, KR
103.162.141.120	AS141083 PT Filltech Antar Nusa	`1.96ms` from Singapore, SG
206.196.96.168	AS6428 CDM	`0.86ms` from St. Louis, US
77.235.233.56	AS12384 Swedish University of Agricultural Sciences	`2.15ms` from Stockholm, SE
167.179.157.88	AS4764 Aussie Broadband	`0.99ms` from Sydney, AU
222.8.195.136	AS2516 KDDI CORPORATION	`19.57ms` from Tokyo, JP
91.135.165.40	AS39878 Peter Rauter GmbH	`4.22ms` from Vienna, AT
62.46.94.184	AS8447 A1 Telekom Austria AG	`4.64ms` from Vienna, AT
186.23.182.200	AS27747 Telecentro S.A.	`0.25ms` from Buenos Aires, AR
52.85.1.248	AS16509 Amazon.com, Inc.	`0.56ms` from Cape Town, ZA
47.221.131.152	AS19108 Optimum	`7.98ms` from Dallas, US
117.207.219.8	AS9829 National Internet Backbone	`11.59ms` from Delhi, IN
103.152.162.104	AS140742 DZOGAME COMPANY LIMITED	`0.25ms` from Ho Chi Minh City, VN
192.204.44.216	AS2914 NTT America, Inc.	`0.48ms` from Los Angeles, US
132.239.197.248	AS7377 University of California, San Diego	`2.72ms` from Los Angeles, US
51.48.49.8	AS16509 Amazon.com, Inc.	`5.83ms` from Madrid, ES
2.102.28.24	AS13285 TalkTalk Communications Limited	`1.10ms` from Manchester, GB
94.83.33.56	AS3269 Telecom Italia S.p.A.	`7.20ms` from Milan, IT

Traceroute

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

traceroute -a -n -q1 -f7 210.123.39.65

traceroute to 210.123.39.65 (210.123.39.65): 64 hops max, 52 byte packets

7 [AS3786] 1.208.179.178 2.534 ms

8 *

9 [AS3786] 115.89.206.242 2.135 ms

10 *

11 *

12 [AS18176] 210.123.39.65 2.008 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

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.

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