210.123.37.0/24

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:        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 210.123.0.0/16

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

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

IP Address	ASN	Details
210.123.37.3	AS18176 KOOKMIN UNIVERSITY	`1.78ms` 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
122.58.95.24	AS4771 Spark New Zealand Trading Ltd.	`10.41ms` from Auckland, NZ
79.227.230.168	AS3320 Deutsche Telekom AG	`3.13ms` from Duesseldorf, DE
39.114.90.216	AS9318 SK Broadband Co Ltd	`5.91ms` from Incheon, KR
86.151.153.104	AS2856 British Telecommunications PLC	`3.65ms` from London, GB
210.146.242.216	AS2519 ARTERIA Networks Corporation	`4.25ms` from Osaka, JP
180.24.93.232	AS4713 NTT DOCOMO BUSINESS,Inc.	`7.27ms` from Osaka, JP
52.3.171.168	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
174.87.228.200	AS20115 Charter Communications LLC	`11.05ms` from San Jose, US
114.56.246.168	AS16509 Amazon.com, Inc.	`5.67ms` from Seattle, US
148.170.221.120	AS396287 Next, Powered by NAEC, LLC	`9.53ms` from Kansas City, US
90.112.180.232	AS3215 Orange S.A.	`5.90ms` from Lyon, FR
72.187.238.72	AS33363 Charter Communications, Inc	`4.65ms` from Orlando, US
4.149.8.8	AS8075 Microsoft Corporation	`0.17ms` from Phoenix, US
177.99.197.56	AS18881 TELEFÔNICA BRASIL S.A	`11.79ms` from Rio de Janeiro, BR
59.13.226.216	AS4766 Korea Telecom	`2.39ms` from Seoul, KR
52.197.77.248	AS16509 Amazon.com, Inc.	`0.20ms` from Tokyo, JP
210.175.240.184	AS9600 So-net Corporation	`1.54ms` from Tokyo, JP
83.218.117.56	AS196927 Regionalna Telewizja Kablowa Spolka Jawna L.Iwanski i Wspolnicy	`11.47ms` from Warsaw, PL
181.122.94.232	AS23201 Telecel S.A.	`2.11ms` from Asuncion, PY
99.110.87.168	AS7018 AT&T Enterprises, LLC	`5.58ms` from Atlanta, US
156.195.197.136	AS8452 TE-AS	`5.19ms` from Cairo, EG
96.165.154.184	AS393232 Comcast Cable Communications, LLC	`0.06ms` from Chicago, US
70.129.181.184	AS7018 AT&T Enterprises, LLC	`2.14ms` from Dallas, US
98.43.2.56	AS7922 Comcast Cable Communications, LLC	`5.70ms` from Denver, US
34.249.124.232	AS16509 Amazon.com, Inc.	`0.20ms` from Dublin, IE

Traceroute

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

traceroute -a -n -q1 210.123.37.148

traceroute to 210.123.37.148 (210.123.37.148): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.47 0.074 ms

2 [AS3786] 211.118.152.142 1.434 ms

3 *

4 *

5 *

6 *

7 [AS3786] 115.89.206.242 2.622 ms

8 *

9 [AS18176] 210.123.37.148 2.53 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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