121.159.36.0/22

AS4766 · Korea Telecom

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Summary

Country	South Korea
Domain	kt.com
ASN	AS4766
Parent Range	121.128.0.0/11
Registry	KRNIC
ID	121.159.36.0-121.159.36.255

WHOIS Details

inetnum:            121.159.36.0 - 121.159.36.255
descr:              Gyeongundaehakgyo
network-type:       CUSTOMER
address:            Sandong-Myeon Gumi-Si Gyeongsangbuk-Do
zip-code:           730-850
created:            2015-03-17
admin:              GENERATED-KRNIC-IP-MANAGER-KORNETIP
country:            KR
source:             KRNIC

nic-hdl:            GENERATED-KRNIC-IP-MANAGER-KORNETIP
person:             IP Manager
name:               IP Manager
phone:              +82-2-500-6631
e-mail:             kornet_ip@kt.com
source:             KRNIC

Overlapping Ranges

BGP prefixes that contain 121.159.36.0/22

Range	ASN	Company	Num of IPs
121.128.0.0/11	AS18333	Korea Telecom	2,097,152
121.128.0.0/11	AS38122	Korea Telecom	2,097,152
121.128.0.0/11	AS17588	Korea Telecom	2,097,152
121.128.0.0/11	AS9647	Korea Telecom	2,097,152
121.128.0.0/11	AS9856	Korea Telecom	2,097,152
121.128.0.0/11	AS4766	Korea Telecom	2,097,152

Nearby Ranges

BGP prefixes that overlap with 121.159.0.0/16

Range	ASN	Company	Num of IPs
121.128.0.0/11	AS17588	Korea Telecom	2,097,152
121.128.0.0/11	AS18333	Korea Telecom	2,097,152
121.128.0.0/11	AS38122	Korea Telecom	2,097,152
121.128.0.0/11	AS4766	Korea Telecom	2,097,152
121.128.0.0/11	AS9647	Korea Telecom	2,097,152
121.128.0.0/11	AS9856	Korea Telecom	2,097,152
121.159.242.0/24	AS4766	KT	256
121.159.243.0/24	AS4766	KT	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
121.159.36.181	AS4766 Korea Telecom	`6.13ms` 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
79.129.189.6	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`6.13ms` from Athens, GR
185.182.39.102	AS10753 Level 3 Parent, LLC	`0.56ms` from Berlin, DE
3.134.191.230	AS16509 Amazon.com, Inc.	`0.17ms` from Columbus, US
107.130.81.70	AS7018 AT&T Enterprises, LLC	`2.61ms` from Dallas, US
20.247.42.134	AS8075 Microsoft Corporation	`0.32ms` from Hong Kong, HK
118.140.219.6	AS9304 HGC Global Communications Limited	`1.39ms` from Hong Kong, HK
188.213.143.214	AS197922 Techcrea Solutions SAS	`1.51ms` from Lille, FR
83.223.231.6	AS42863 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`14.98ms` from Lisbon, PT
206.214.44.134	AS40511 Fireline Network Solutions, Inc.	`0.45ms` from Los Angeles, US
35.152.228.198	AS16509 Amazon.com, Inc.	`0.12ms` from Milan, IT
79.54.248.102	AS3269 Telecom Italia S.p.A.	`3.20ms` from Milan, IT
46.234.215.198	AS50316 Net Global Srl	`6.34ms` from Milan, IT
24.122.93.214	AS11290 Cogeco Connexion inc	`8.41ms` from Montreal, CA
13.126.200.54	AS16509 Amazon.com, Inc.	`0.14ms` from Mumbai, IN
110.42.102.214	AS136188 NINGBO, ZHEJIANG Province, P.R.China.	`0.11ms` from Ningbo, CN
58.190.164.246	AS17511 OPTAGE Inc.	`2.19ms` from Osaka, JP
27.209.81.6	AS4837 CHINA UNICOM China169 Backbone	`5.28ms` from Qingdao, CN
201.137.170.230	AS8151 UNINET	`3.75ms` from Santiago de Queretaro, MX
153.169.11.150	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.69ms` from Tokyo, JP
178.198.86.6	AS3303 Swisscom (Switzerland) Ltd	`2.40ms` from Zuerich, CH
86.83.127.22	AS1136 KPN B.V.	`3.52ms` from Amsterdam, NL
35.236.209.38	AS396982 Google LLC	`0.13ms` from Ashburn, US
44.226.54.134	AS16509 Amazon.com, Inc.	`0.13ms` from Boardman, US
191.111.233.198	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`8.95ms` from Bogota, CO
197.49.38.54	AS8452 TE-AS	`6.21ms` from Cairo, EG

Traceroute

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

traceroute -a -n -q1 121.159.36.182

traceroute to 121.159.36.182 (121.159.36.182): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.46 0.109 ms

2 [AS4766] 218.145.32.254 1.107 ms

3 *

4 *

5 [AS4766] 112.174.56.182 5.57 ms

6 *

7 *

8 [AS4766] 203.228.29.130 8.783 ms

9 [AS4766] 220.81.95.253 6.517 ms

10 [AS4766] 220.81.95.2 8.494 ms

11 [AS4766] 121.159.36.182 8.643 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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