121.135.148.0/24

AS46002 · PHIS

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Summary

Country	South Korea
Domain	kt.com
ASN	AS46002
Parent Range	121.128.0.0/11
Registry	KRNIC
ID	121.135.148.0-121.135.148.255

WHOIS Details

inetnum:            121.135.148.0 - 121.135.148.255
descr:              (ju)pyeonghwaijeu
network-type:       CUSTOMER
address:            Seocho-Dong Seocho-Gu Seoulteukbyeol-Si
zip-code:           137-070
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 121.135.148.0/24

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 121.135.0.0/16

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
121.135.56.0/24	AS38697	Hangyeongdaehakgyo	256
121.135.147.0/24	AS46002	(ju)pyeonghwaijeu	256
121.135.246.0/24	AS9696	Korea Telecom	256
121.135.53.0/24	AS38697	Hangyeongdaehakgyo	256
121.135.54.0/24	AS38697	Hangyeongdaehakgyo	256
121.135.55.0/24	AS38697	Hangyeongdaehakgyo	256

Hosted domains

There are 14 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
121.135.148.122	cmcsungmo.or.kr	10
121.135.148.33	smartcmc.or.kr	1
121.135.148.109	cmcsurvey.or.kr	1
121.135.148.15	cmcseoul.kr	1
121.135.148.14	cef.or.kr	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
121.135.148.121	AS46002 PHIS	`1.23ms` 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
101.72.199.56	AS4837 CHINA UNICOM China169 Backbone	`5.81ms` from Beijing, CN
102.162.21.168	AS30999 EMTEL LIMITED	`15.51ms` from Ebene, MU
3.79.114.232	AS16509 Amazon.com, Inc.	`0.16ms` from Frankfurt am Main, DE
122.144.3.104	AS38320 PT Maxindo Mitra Solusi	`0.49ms` from Jakarta, ID
133.175.194.216	AS2519 ARTERIA Networks Corporation	`10.39ms` from Osaka, JP
180.220.162.136	AS9617 JCOM Co., Ltd.	`9.79ms` from Osaka, JP
20.171.107.40	AS8075 Microsoft Corporation	`0.18ms` from Phoenix, US
87.18.238.40	AS3269 Telecom Italia S.p.A.	`2.42ms` from Rome, IT
101.224.115.88	AS4812 China Telecom (Group)	`1.76ms` from Shanghai, CN
2.71.237.248	AS44034 Hi3G Access AB	`6.96ms` from Stockholm, SE
140.111.170.152	AS1659 Taiwan Academic Network (TANet) Information Center	`3.82ms` from Taipei, TW
193.221.126.8	AS31165 PELION S.A.	`2.33ms` from Warsaw, PL
155.117.8.168	AS59642 UAB Cherry Servers	`0.33ms` from Amsterdam, NL
128.245.150.40	AS14340 Salesforce.com, Inc.	`1.04ms` from Ashburn, US
47.38.230.8	AS20115 Charter Communications LLC	`4.67ms` from Dallas, US
117.97.66.248	AS45609 Bharti Airtel Ltd. AS for GPRS Service	`5.77ms` from Delhi, IN
54.72.156.216	AS16509 Amazon.com, Inc.	`0.26ms` from Dublin, IE
175.127.205.56	AS9318 SK Broadband Co Ltd	`6.09ms` from Incheon, KR
92.29.249.248	AS13285 TalkTalk Communications Limited	`1.77ms` from London, GB
88.42.159.184	AS3269 Telecom Italia S.p.A.	`2.36ms` from Milan, IT
185.249.97.152	AS42366 TerraTransit AG	`0.30ms` from Nuernberg, DE
72.187.131.88	AS33363 Charter Communications, Inc	`8.63ms` from Orlando, US
20.100.40.248	AS8075 Microsoft Corporation	`0.64ms` from Oslo, NO
92.103.134.24	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`1.04ms` from Paris, FR
39.69.19.136	AS4837 CHINA UNICOM China169 Backbone	`7.20ms` from Qingdao, CN

Traceroute

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

traceroute -a -n -q1 121.135.148.136

traceroute to 121.135.148.136 (121.135.148.136): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.46 0.118 ms

2 *

3 *

4 [AS4766] 128.134.10.105 0.864 ms

5 *

6 [AS4766] 112.174.120.62 1.911 ms

7 *

8 *

9 [AS4766] 121.138.86.254 1.999 ms

10 [AS46002] 121.135.148.136 1.237 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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