121.157.110.0/24

AS9638 · National Agricultural Cooperative federation

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Summary

Country	South Korea
Domain	kt.com
ASN	AS9638
Parent Range	121.128.0.0/11
Registry	KRNIC
ID	121.157.110.0-121.157.110.255

WHOIS Details

inetnum:            121.157.110.0 - 121.157.110.255
descr:              Korea Telecom
network-type:       CUSTOMER
address:            90 Buljeongro Bundang-Gu Seongnam-Si Gyeonggi-Do
zip-code:           13606
created:            2025-07-10
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 121.157.110.0/24

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

Nearby Ranges

BGP prefixes that overlap with 121.157.0.0/16

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
121.157.111.0/24	AS9638	Korea Telecom	256
121.157.108.0/24	AS9638	Korea Telecom	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
121.157.110.173	AS9638 National Agricultural Cooperative federation	`2.10ms` 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
178.48.118.88	AS21334 One Hungary Ltd.	`15.55ms` from Budapest, HU
75.190.185.72	AS11426 Charter Communications Inc	`4.64ms` from Charlotte, US
117.7.107.56	AS7552 Viettel Group	`2.75ms` from Hanoi, VN
108.253.41.40	AS7018 AT&T Enterprises, LLC	`19.67ms` from Houston, US
191.5.173.248	AS263539 NEW SYSTEM INTERNET	`16.46ms` from Joao Pessoa, BR
98.191.218.120	AS22773 Cox Communications Inc.	`4.58ms` from Kansas City, US
80.21.66.40	AS3269 Telecom Italia S.p.A.	`5.33ms` from Milan, IT
66.70.26.40	AS14492 DataPipe, Inc.	`2.07ms` from New York City, US
173.56.86.72	AS701 Verizon Business	`2.81ms` from New York City, US
47.104.178.8	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.10ms` from Qingdao, CN
183.106.168.120	AS4766 Korea Telecom	`9.04ms` from Seoul, KR
60.35.209.248	AS4713 NTT DOCOMO BUSINESS,Inc.	`9.21ms` from Tokyo, JP
80.61.255.216	AS1136 KPN B.V.	`2.62ms` from Amsterdam, NL
87.229.58.88	AS29278 Rackhost Zrt.	`0.14ms` from Budapest, HU
168.107.22.200	AS31898 Oracle Corporation	`0.19ms` from Chuncheon, KR
79.207.56.120	AS3320 Deutsche Telekom AG	`2.65ms` from Frankfurt am Main, DE
95.33.8.216	AS9145 EWE TEL GmbH	`4.60ms` from Hamburg, DE
73.19.33.72	AS7922 Comcast Cable Communications, LLC	`4.40ms` from Seattle, US
222.109.254.72	AS4766 Korea Telecom	`1.57ms` from Seoul, KR
20.214.122.216	AS8075 Microsoft Corporation	`0.29ms` from Seoul, KR
20.70.229.8	AS8075 Microsoft Corporation	`0.70ms` from Sydney, AU
171.119.147.120	AS4837 CHINA UNICOM China169 Backbone	`4.96ms` from Taiyuan, CN
62.28.109.168	AS15525 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`0.94ms` from Braga, PT
75.182.202.8	AS11426 Charter Communications Inc	`12.44ms` from Charlotte, US
3.23.123.8	AS16509 Amazon.com, Inc.	`0.14ms` from Columbus, US

Traceroute

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

traceroute -a -n -q1 121.157.110.188

traceroute to 121.157.110.188 (121.157.110.188): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.5 0.079 ms

2 [AS3786] 211.118.152.142 0.59 ms

3 *

4 *

5 [AS4766] 112.174.57.246 1.755 ms

6 *

7 [AS4766] 121.135.13.178 3.317 ms

8 [AS9638] 121.157.110.188 3.039 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On November 22nd 2025

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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