123.140.121.0/24

AS18338 · DAOUDATA

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Summary

Country	South Korea
Domain	uplus.co.kr
ASN	AS18338
Parent Range	123.140.0.0/14
Registry	KRNIC
ID	123.140.121.0-123.140.121.255

WHOIS Details

inetnum:            123.140.121.0 - 123.140.121.255
descr:              LG Uplus
network-type:       CUSTOMER
address:            Gyeonggi-do Manan-gu, Anyang-si Deokcheon-ro 37
zip-code:           14088
created:            2007-03-19
admin:              GENERATED-KRNIC-IP-MANAGER-B8273338
country:            KR
source:             KRNIC

nic-hdl:            GENERATED-KRNIC-IP-MANAGER-B8273338
person:             IP Manager
name:               IP Manager
phone:              +82-2-2089-7750
e-mail:             b8273338@user.bora.net
source:             KRNIC

Overlapping Ranges

BGP prefixes that contain 123.140.121.0/24

Range	ASN	Company	Num of IPs
123.140.0.0/14	AS138195	LG DACOM Corporation	262,144
123.140.0.0/14	AS3786	LG DACOM Corporation	262,144

Nearby Ranges

BGP prefixes that overlap with 123.140.0.0/16

Range	ASN	Company	Num of IPs
123.140.0.0/14	AS138195	LG DACOM Corporation	262,144
123.140.0.0/14	AS3786	LG DACOM Corporation	262,144
123.140.109.0/24	AS4790	LG Uplus	256
123.140.106.0/24	AS9530	LG Uplus	256
123.140.237.0/24	AS9843	LG Uplus	256

Hosted domains

There are 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
123.140.121.218	phonepay.co.kr	1
123.140.121.20	kw1.co.kr	1

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

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Pingable IPs

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

IP Address	ASN	Details
123.140.121.186	AS18338 DAOUDATA	`1.34ms` 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
165.232.189.232	AS14061 DigitalOcean, LLC	`0.24ms` from Bengaluru, IN
204.153.213.8	AS11746 Waggener Edstrom Worldwide, Inc.	`0.39ms` from Denver, US
52.184.38.24	AS8075 Microsoft Corporation	`0.28ms` from Hong Kong, HK
61.8.191.248	AS63134 Developpement Innovations Haut-Richelieu	`1.47ms` from Montreal, CA
98.87.214.24	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
115.68.223.232	AS38700 SMILESERV	`1.36ms` from Seoul, KR
83.255.207.8	AS1257 Tele2 Sverige AB	`9.47ms` from Stockholm, SE
18.67.89.24	AS16509 Amazon.com, Inc.	`0.29ms` from Sydney, AU
171.121.116.120	AS4837 CHINA UNICOM China169 Backbone	`6.34ms` from Taiyuan, CN
61.194.154.24	AS2514 NTT PC Communications, Inc.	`6.75ms` from Tokyo, JP
5.55.50.248	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`1.29ms` from Athens, GR
107.136.72.168	AS7018 AT&T Enterprises, LLC	`10.53ms` from Atlanta, US
73.237.57.216	AS7922 Comcast Cable Communications, LLC	`4.70ms` from Atlanta, US
144.212.3.104	AS11939 THE MATHWORKS, INC.	`1.37ms` from Boston, US
125.65.85.8	AS4134 CHINANET-BACKBONE	`6.14ms` from Chengdu, CN
123.202.186.152	AS9269 Hong Kong Broadband Network Ltd.	`0.80ms` from Hong Kong, HK
123.202.147.136	AS9269 Hong Kong Broadband Network Ltd.	`1.31ms` from Hong Kong, HK
176.250.37.120	AS5607 Sky UK Limited	`1.00ms` from London, GB
18.67.10.248	AS16509 Amazon.com, Inc.	`0.09ms` from Miami, US
191.188.96.8	AS28573 Claro NXT Telecomunicacoes Ltda	`2.81ms` from Osasco, BR
52.71.216.24	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
71.94.3.120	AS20115 Charter Communications LLC	`9.77ms` from San Jose, US
43.163.120.232	AS132203 Tencent Building, Kejizhongyi Avenue	`0.64ms` from Singapore, SG
37.44.207.40	AS13189 Lidero Network	`7.68ms` from Stockholm, SE
23.198.44.248	AS16625 Akamai Technologies, Inc.	`0.08ms` from Sydney, AU

Traceroute

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

traceroute -a -n -q1 123.140.121.186

traceroute to 123.140.121.186 (123.140.121.186): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.43 0.088 ms

2 [AS3786] 211.118.152.142 0.767 ms

3 *

4 *

5 *

6 [AS4766] 112.191.125.81 1.387 ms

7 [AS4766] 112.191.124.253 1.366 ms

8 [AS4766] 61.78.52.210 1.294 ms

9 [AS18338] 222.106.99.24 2.418 ms

10 [AS18338] 123.140.121.186 1.772 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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