210.123.33.0/24

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:        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

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

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

IP Address	ASN	Details
210.123.33.117	AS18176 KOOKMIN UNIVERSITY	`1.77ms` 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
41.39.207.8	AS8452 TE-AS	`6.36ms` from Cairo, EG
103.190.194.8	AS138754 Kerala Vision Broad Band Private Limited	`11.08ms` from Chennai, IN
124.61.165.40	AS17858 LG POWERCOMM	`1.98ms` from Incheon, KR
1.240.191.8	AS9318 SK Broadband Co Ltd	`1.69ms` from Incheon, KR
197.98.41.184	AS3741 Dimension Data	`12.27ms` from Johannesburg, ZA
87.26.168.24	AS3269 Telecom Italia S.p.A.	`9.46ms` from Rome, IT
115.6.123.216	AS4766 Korea Telecom	`7.63ms` from Seoul, KR
121.153.57.24	AS4766 Korea Telecom	`4.93ms` from Seoul, KR
37.233.69.216	AS1257 Tele2 Sverige AB	`17.32ms` from Stockholm, SE
104.96.167.88	AS16625 Akamai Technologies, Inc.	`0.17ms` from Ashburn, US
104.7.99.200	AS7018 AT&T Enterprises, LLC	`2.05ms` from Atlanta, US
146.12.214.8	AS11179 Aryaka Networks, Inc.	`0.80ms` from Chennai, IN
70.94.114.72	AS11427 Charter Communications Inc	`14.05ms` from Dallas, US
217.253.110.120	AS3320 Deutsche Telekom AG	`4.83ms` from Frankfurt am Main, DE
89.217.4.200	AS6730 Sunrise GmbH	`2.82ms` from Geneve, CH
16.162.126.216	AS16509 Amazon.com, Inc.	`0.12ms` from Hong Kong, HK
82.38.49.136	AS42831 UK Dedicated Servers Limited	`0.28ms` from London, GB
219.118.239.24	AS18144 Enecom,Inc.	`5.95ms` from Osaka, JP
87.228.57.168	AS49505 JSC Selectel	`0.48ms` from Saint Petersburg, RU
60.132.238.120	AS17676 SoftBank Corp.	`2.65ms` from Tokyo, JP
45.131.57.232	AS48642 Joint stock company For	`1.57ms` from Yekaterinburg, RU
89.56.127.8	AS207790 SWN Stadtwerke Neumuenster GmbH	`2.06ms` from Hamburg, DE
1.242.30.152	AS9318 SK Broadband Co Ltd	`2.41ms` from Incheon, KR
108.137.27.88	AS16509 Amazon.com, Inc.	`0.11ms` from Jakarta, ID
88.89.27.136	AS2119 Telenor Norge AS	`2.75ms` from Oslo, NO

Traceroute

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

traceroute -a -n -q1 -f7 210.123.33.12

traceroute to 210.123.33.12 (210.123.33.12): 64 hops max, 52 byte packets

7 [AS3786] 1.208.179.178 2.146 ms

8 *

9 [AS3786] 115.89.206.242 2.047 ms

10 *

11 [AS18176] 210.123.33.12 2.058 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On January 19th 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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