121.129.49.0/24

AS9776 · KOOKMIN BANK

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Summary

Country	South Korea
Domain	kt.com
ASN	AS9776
Parent Range	121.128.0.0/11
Registry	KRNIC
ID	121.129.49.0-121.129.49.255

WHOIS Details

inetnum:            121.129.49.0 - 121.129.49.255
descr:              (ju)gukmineunhaengbonjeom
network-type:       CUSTOMER
address:            Yeouido-Dong Yeongdeungpo-Gu Seoulteukbyeol-Si
zip-code:           150-010
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:              +82-2-500-6630
e-mail:             kornet_ip@kt.com
source:             KRNIC

Overlapping Ranges

BGP prefixes that contain 121.129.49.0/24

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 121.129.0.0/16

Range	ASN	Company	Num of IPs
121.128.0.0/11	AS4766	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	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

Hosted domains

There are 12 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
121.129.49.21	haat.co.kr	11
121.129.49.66	kb.do	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

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
83.110.7.168	AS5384 Emirates Internet	`3.38ms` from Al Fujairah City, AE
45.244.95.24	AS24863 Link Egypt (Link.NET)	`6.77ms` from Cairo, EG
35.184.151.8	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
141.109.191.72	AS40007 St. Francis Xavier University	`9.52ms` from Halifax, CA
61.10.55.232	AS9908 HK Cable TV Ltd	`0.84ms` from Hong Kong, HK
83.67.195.88	AS13285 TalkTalk Communications Limited	`2.22ms` from Manchester, GB
141.168.204.120	AS135887 Belong (Telstra Limited)	`2.97ms` from Melbourne, AU
180.115.16.232	AS4134 CHINANET-BACKBONE	`4.65ms` from Nanjing, CN
216.184.127.56	AS263783 Telefonica Moviles El Salvador S.A. de C.V.	`16.88ms` from San Salvador, SV
115.7.200.56	AS4766 Korea Telecom	`6.70ms` from Seoul, KR
180.23.14.56	AS4713 NTT DOCOMO BUSINESS,Inc.	`7.20ms` from Tokyo, JP
52.143.11.152	AS8075 Microsoft Corporation	`0.27ms` from Amsterdam, NL
125.252.245.56	AS7470 TRUE INTERNET Co.,Ltd.	`0.85ms` from Bangkok, TH
130.73.68.232	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`1.00ms` from Berlin, DE
40.176.144.8	AS16509 Amazon.com, Inc.	`1.61ms` from Calgary, CA
221.9.215.248	AS4837 CHINA UNICOM China169 Backbone	`6.81ms` from Changchun, CN
202.37.106.248	AS23655 2degrees Networks Limited	`1.54ms` from Christchurch, NZ
67.173.229.24	AS7922 Comcast Cable Communications, LLC	`2.57ms` from Denver, US
5.157.252.104	AS9009 M247 Europe SRL	`0.29ms` from Frankfurt am Main, DE
36.102.21.24	AS4134 CHINANET-BACKBONE	`1.31ms` from Hohhot, CN
37.56.11.24	AS25019 Saudi Telecom Company JSC	`3.95ms` from Jeddah, SA
162.159.41.136	AS13335 Cloudflare, Inc.	`0.10ms` from Lisbon, PT
45.51.10.232	AS20001 Charter Communications Inc	`4.53ms` from Los Angeles, US
179.160.126.168	AS26599 TELEFÔNICA BRASIL S.A	`3.10ms` from Osasco, BR
96.227.118.232	AS701 Verizon Business	`1.06ms` from Philadelphia, US

Traceroute

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

traceroute -a -n -q1 -f2 -m6 121.129.49.37

traceroute to 121.129.49.37 (121.129.49.37): 6 hops max, 52 byte packets

2 [AS55293] 69.48.136.4 2.213 ms

3 [AS55293] 69.48.136.14 0.149 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Detroit, US

On December 28th 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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