121.191.152.0/24

AS4766 · Korea Telecom

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Summary

Country	South Korea
Domain	kt.com
ASN	AS4766
Parent Range	121.160.0.0/11
Registry	KRNIC
ID	121.191.152.0-121.191.152.255

WHOIS Details

inetnum:            121.191.152.0 - 121.191.152.255
descr:              Jungwondaehakgyo
network-type:       CUSTOMER
address:            Goesan-Eup Goesan-Gun Chungcheongbuk-Do
zip-code:           367-800
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 121.191.152.0/24

Range	ASN	Company	Num of IPs
121.160.0.0/11	AS23582	Korea Telecom	2,097,152
121.160.0.0/11	AS38089	Korea Telecom	2,097,152
121.160.0.0/11	AS4766	Korea Telecom	2,097,152

Nearby Ranges

BGP prefixes that overlap with 121.191.0.0/16

Range	ASN	Company	Num of IPs
121.160.0.0/11	AS23582	Korea Telecom	2,097,152
121.160.0.0/11	AS38089	Korea Telecom	2,097,152
121.160.0.0/11	AS4766	Korea Telecom	2,097,152
121.191.149.0/24	AS4766	Jungwondaehakgyo	256
121.191.150.0/24	AS4766	Jungwondaehakgyo	256
121.191.151.0/24	AS4766	Jungwondaehakgyo	256
121.191.166.0/24	AS4766	Chungbukbonbujang	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

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

IP Address	ASN	Details
121.191.152.64	AS4766 Korea Telecom	`3.99ms` 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
23.15.40.200	AS20940 Akamai International B.V.	`0.81ms` from Chennai, IN
3.151.124.120	AS16509 Amazon.com, Inc.	`0.16ms` from Columbus, US
123.19.26.40	AS45899 VNPT Corp	`7.32ms` from Da Nang, VN
36.85.230.232	AS7713 PT Telekomunikasi Indonesia	`4.39ms` from Jakarta, ID
20.26.199.248	AS8075 Microsoft Corporation	`0.24ms` from London, GB
134.16.93.120	AS20115 Charter Communications LLC	`14.00ms` from Los Angeles, US
86.220.120.232	AS3215 Orange S.A.	`8.62ms` from Marseille, FR
122.26.176.104	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.64ms` from Tokyo, JP
197.8.92.56	AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom)	`16.33ms` from Tunis, TN
188.252.186.152	AS31012 A1 Hrvatska d.o.o.	`4.50ms` from Zagreb, HR
93.225.10.200	AS3320 Deutsche Telekom AG	`6.07ms` from Berlin, DE
81.246.168.88	AS5432 Proximus NV	`1.94ms` from Brussels, BE
86.138.19.40	AS2856 British Telecommunications PLC	`4.56ms` from London, GB
172.118.175.248	AS20001 Charter Communications Inc	`6.19ms` from Los Angeles, US
209.200.250.104	AS5065 Bunny Communications	`0.60ms` from Los Angeles, US
65.1.214.88	AS16509 Amazon.com, Inc.	`0.14ms` from Mumbai, IN
114.145.133.56	AS4713 NTT DOCOMO BUSINESS,Inc.	`14.53ms` from Osaka, JP
210.1.150.152	AS9615 TOYOHASHI CABLE NETWORK INC.	`5.04ms` from Osaka, JP
103.138.86.216	AS136557 Host Universal Pty Ltd	`0.14ms` from Perth, AU
112.244.1.216	AS4837 CHINA UNICOM China169 Backbone	`6.42ms` from Qingdao, CN
83.244.38.8	AS12975 PALTEL Autonomous System	`2.61ms` from Ramallah, PS
189.147.163.104	AS8151 UNINET	`3.91ms` from Santiago de Queretaro, MX
187.154.107.120	AS8151 UNINET	`16.83ms` from Santiago de Queretaro, MX
123.114.81.40	AS4808 China Unicom Beijing Province Network	`3.21ms` from Beijing, CN
177.199.2.40	AS26599 TELEFÔNICA BRASIL S.A	`9.63ms` from Brasilia, BR

Traceroute

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

traceroute -a -n -q1 121.191.152.64

traceroute to 121.191.152.64 (121.191.152.64): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.59 0.089 ms

2 [AS4766] 218.145.32.254 0.599 ms

3 *

4 *

5 [AS4766] 112.174.63.206 3.772 ms

6 [AS4766] 112.188.195.22 3.443 ms

7 *

8 [AS4766] 121.188.79.158 4.496 ms

9 [AS4766] 121.191.149.2 4.687 ms

10 [AS4766] 121.191.149.10 4.701 ms

11 [AS4766] 121.191.152.64 4.229 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On November 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.

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