128.134.172.0/22

AS4766 · Korea Telecom

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Summary

Country	South Korea
Domain	kt.com
ASN	AS4766
Parent Range	128.134.0.0/16
Registry	KRNIC
ID	128.134.173.0-128.134.173.31

WHOIS Details

inetnum:            128.134.173.0 - 128.134.173.31
descr:              Korea Telecom
network-type:       CUSTOMER
address:            90 Buljeongro Bundang-Gu Seongnam-Si Gyeonggi-Do
zip-code:           13606
created:            2020-01-17
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:             [email protected]
source:             KRNIC

Overlapping Ranges

BGP prefixes that contain 128.134.172.0/22

Range	ASN	Company	Num of IPs
128.134.0.0/16	AS4766	Korea Telecom	65,536
128.134.0.0/16	AS9318	Korea Telecom	65,536
128.134.0.0/16	AS9526	Korea Telecom	65,536

Nearby Ranges

BGP prefixes that overlap with 128.134.0.0/16

Range	ASN	Company	Num of IPs
128.134.0.0/16	AS9318	Korea Telecom	65,536
128.134.0.0/16	AS9526	Korea Telecom	65,536
128.134.0.0/16	AS4766	Korea Telecom	65,536
128.134.232.0/21	AS4766	Seongsinyeojadaehakgyo	2,048
128.134.32.0/22	AS4766	KT	1,024
128.134.240.0/23	AS4766	KT	512
128.134.210.0/24	AS10060	Yonsei University Health System	256
128.134.211.0/24	AS10060	Yonsei University Health System	256
128.134.212.0/24	AS10060	Yonsei University Health System	256
128.134.213.0/24	AS10060	Yonsei University Health System	256
128.134.214.0/24	AS10060	Yonsei University Health System	256
128.134.215.0/24	AS10060	Yonsei University Health System	256
128.134.216.0/24	AS10060	Yonsei University Health System	256
128.134.226.0/24	AS10060	Yonsei University Health System	256
128.134.227.0/24	AS10060	Yonsei University Health System	256
128.134.228.0/24	AS10060	Yonsei University Health System	256
128.134.41.0/24	AS10088	Gwangundaehakgyo	256
128.134.42.0/24	AS10088	Gwangundaehakgyo	256
128.134.43.0/24	AS10088	Gwangundaehakgyo	256
128.134.44.0/24	AS10088	Gwangundaehakgyo	256
128.134.45.0/24	AS10088	Gwangundaehakgyo	256
128.134.46.0/24	AS10088	Gwangundaehakgyo	256
128.134.47.0/24	AS10088	Gwangundaehakgyo	256
128.134.49.0/24	AS10088	Gwangundaehakgyo	256
128.134.51.0/24	AS10088	Gwangundaehakgyo	256
128.134.53.0/24	AS10088	Gwangundaehakgyo	256
128.134.54.0/24	AS10088	Gwangundaehakgyo	256
128.134.55.0/24	AS10088	Gwangundaehakgyo	256
128.134.56.0/24	AS10088	Gwangundaehakgyo	256
128.134.57.0/24	AS10088	Gwangundaehakgyo	256
128.134.58.0/24	AS10088	Gwangundaehakgyo	256
128.134.59.0/24	AS10088	Gwangundaehakgyo	256
128.134.60.0/24	AS10088	Gwangundaehakgyo	256
128.134.62.0/24	AS10088	Gwangundaehakgyo	256
128.134.63.0/24	AS10088	Gwangundaehakgyo	256
128.134.64.0/24	AS10088	Gwangundaehakgyo	256
128.134.65.0/24	AS10088	Gwangundaehakgyo	256
128.134.66.0/24	AS10088	Gwangundaehakgyo	256
128.134.67.0/24	AS10088	Gwangundaehakgyo	256
128.134.69.0/24	AS10088	Gwangundaehakgyo	256
128.134.70.0/24	AS10088	Gwangundaehakgyo	256
128.134.95.0/24	AS45381	Eseueichigongsa	256
128.134.96.0/24	AS45381	Eseueichigongsa	256
128.134.97.0/24	AS45381	Eseueichigongsa	256
128.134.36.0/24	AS4766	Myeongjidaehakgyo	256
128.134.127.0/24	AS9525	(ju)koseu	256
128.134.154.0/24	AS9634	Sinhangeumyungtuja(ju)	256
128.134.135.0/24	AS9684	Hanhwaeseussi(ju)	256
128.134.108.0/24	AS10060	Yonsei University Health System	256
128.134.225.0/24	AS9684	Hanhwaeseussi(ju)	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

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

IP Address	ASN	Details
128.134.173.81	AS4766 Korea Telecom	`2.30ms` 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
50.186.230.150	AS7922 Comcast Cable Communications, LLC	`6.23ms` from Ashburn, US
94.105.116.246	AS9031 EDPNETapp	`2.91ms` from Brussels, BE
171.161.173.6	AS10794 Bank of America, National Association	`1.31ms` from Dallas, US
173.10.61.182	AS7922 Comcast Cable Communications, LLC	`8.99ms` from Flint, US
195.50.139.22	AS3209 Vodafone GmbH	`0.61ms` from Frankfurt am Main, DE
87.147.187.70	AS3320 Deutsche Telekom AG	`2.93ms` from Frankfurt am Main, DE
114.203.246.118	AS9318 SK Broadband Co Ltd	`1.74ms` from Incheon, KR
91.102.32.6	AS42642 Gulf Investment Corporation	`0.79ms` from Kuwait City, KW
95.166.58.182	AS48101 Trooli Ltd.	`1.27ms` from London, GB
201.102.251.182	AS8151 UNINET	`1.07ms` from Mexico City, MX
185.250.158.118	AS204386 NABIRI S.R.L.	`9.50ms` from Rome, IT
73.109.114.150	AS7922 Comcast Cable Communications, LLC	`3.56ms` from Seattle, US
121.159.24.22	AS4766 Korea Telecom	`5.74ms` from Seoul, KR
140.126.124.6	AS1659 Taiwan Academic Network (TANet) Information Center	`1.87ms` from Taipei, TW
87.51.232.6	AS3292 TDC Holding A/S	`2.13ms` from Tønder, DK
140.232.214.150	AS53260 Clark University	`10.86ms` from Ashburn, US
203.94.55.214	AS55850 Mercury NZ Limited	`1.00ms` from Auckland, NZ
207.96.17.6	AS6079 RCN	`1.62ms` from Boston, US
186.128.151.86	AS22927 Telefonica de Argentina	`1.43ms` from Buenos Aires, AR
105.158.27.246	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`8.18ms` from Casablanca, MA
47.118.223.38	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`5.96ms` from Hangzhou, CN
113.7.255.86	AS4837 CHINA UNICOM China169 Backbone	`12.07ms` from Harbin, CN
174.127.159.166	AS54858 Wave Broadband	`1.01ms` from Hillsboro, US
155.102.220.54	AS24429 Zhejiang Taobao Network Co.,Ltd	`0.60ms` from Hong Kong, HK
178.233.215.150	AS47524 Turksat Uydu Haberlesme ve Kablo TV Isletme A.S.	`18.47ms` from Istanbul, TR

Traceroute

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

traceroute -a -n -q1 -m6 128.134.174.195

traceroute to 128.134.174.195 (128.134.174.195): 6 hops max, 52 byte packets

1 [AS15169] 74.125.251.95 139.309 ms

2 *

3 [AS4766] 112.174.84.61 167.459 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Columbus, US

On January 30th 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.

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