121.168.252.0/22

AS23582 · Doosan Corporation Digital Innovation

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Summary

Country	South Korea
Domain	kt.com
ASN	AS23582
Parent Range	121.160.0.0/11
Registry	APNIC
ID	KORNET

WHOIS Details

inetnum:        121.160.0.0 - 121.191.255.255
netname:        KORNET
descr:          Korea Telecom
admin-c:        IM667-AP
tech-c:         IM667-AP
country:        KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
changed:        hostmaster@nic.or.kr 20170203
source:         APNIC

irt:            IRT-KRNIC-KR
address:        Seoul Songpa-gu Jungdae-ro 135
e-mail:         hostmaster@nic.or.kr
abuse-mailbox:  hostmaster@nic.or.kr
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr 20150513
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
changed:        hostmaster@nic.or.kr 20170328
source:         APNIC

inetnum:        121.160.0.0 - 121.191.255.255
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.krnic.net.
changed:        hostmaster@nic.or.kr
source:         KRNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        
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
source:         KRNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        
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
source:         KRNIC

Overlapping Ranges

BGP prefixes that contain 121.168.252.0/22

Range	ASN	Company	Num of IPs
121.160.0.0/11	AS23582	Korea Telecom	2,097,152
121.160.0.0/11	AS38089	Korea Telecom	2,097,152
121.160.0.0/11	AS4766	Korea Telecom	2,097,152

Nearby Ranges

BGP prefixes that overlap with 121.168.0.0/16

Range	ASN	Company	Num of IPs
121.160.0.0/11	AS23582	Korea Telecom	2,097,152
121.160.0.0/11	AS38089	Korea Telecom	2,097,152
121.160.0.0/11	AS4766	Korea Telecom	2,097,152
121.168.9.0/24	AS9684	Hanhwaeseussi(ju)	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

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
71.57.194.166	AS7922 Comcast Cable Communications, LLC	`7.00ms` from Ashburn, US
111.8.9.150	AS56047 China Mobile communications corporation	`1.76ms` from Changsha, CN
14.210.16.38	AS4134 CHINANET BACKBONE	`9.28ms` from Guangzhou, CN
16.162.138.102	AS16509 Amazon.com, Inc.	`0.10ms` from Hong Kong, HK
150.183.164.246	AS1237 KISTI	`3.25ms` from Incheon, KR
4.186.35.198	AS8075 Microsoft Corporation	`0.14ms` from Lohogaon, IN
213.97.131.182	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.68ms` from Madrid, ES
176.120.247.150	AS42892 PE Filimonov Boris Yurievich	`1.92ms` from Moscow, RU
68.204.69.22	AS33363 Charter Communications, Inc	`7.42ms` from Orlando, US
73.196.179.70	AS7922 Comcast Cable Communications, LLC	`11.30ms` from Piscataway, US
37.100.105.246	AS1267 WIND TRE S.P.A.	`7.48ms` from Rome, IT
96.71.241.230	AS7922 Comcast Cable Communications, LLC	`8.11ms` from San Jose, US
63.243.226.6	AS6453 TATA COMMUNICATIONS (AMERICA) INC	`0.39ms` from Seattle, US
124.50.141.38	AS17858 LG POWERCOMM	`2.32ms` from Seoul, KR
220.92.42.134	AS4766 Korea Telecom	`7.22ms` from Seoul, KR
108.180.7.118	AS852 TELUS Communications Inc.	`7.52ms` from Vancouver, CA
188.129.105.86	AS29485 A1 Hrvatska d.o.o.	`7.65ms` from Zagreb, HR
99.131.148.230	AS7018 AT&T Enterprises, LLC	`12.11ms` from Atlanta, US
5.197.43.38	AS57293 AG Telekom MMC.	`1.27ms` from Baku, AZ
109.125.74.230	AS35244 Tele Columbus AG	`8.99ms` from Berlin, DE
36.170.26.166	AS139080 The Internet Data Center of Sichuan Mobile Communication Company Limited	`1.99ms` from Chengdu, CN
103.117.143.150	AS137934 United Commercial Bank Limited	`1.76ms` from Dhaka, BD
96.64.158.230	AS7922 Comcast Cable Communications, LLC	`13.39ms` from Greenwood Village, US
91.153.172.22	AS719 Elisa Oyj	`0.84ms` from Helsinki, FI
36.33.254.230	AS4837 CHINA UNICOM China169 Backbone	`6.50ms` from Huainan, CN

Traceroute

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

traceroute -a -n -q1 -m4 121.168.252.95

traceroute to 121.168.252.95 (121.168.252.95): 4 hops max, 52 byte packets

1 [AS52368] 45.7.228.254 0.548 ms

2 *

3 *

4 *

Measurement taken from

IPinfo ProbeNet in Curicó, CL

On April 13th 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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