125.128.64.0/19

AS17841 · NATIONAL INFORMATION RESOURCES SERVICE

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Summary

Country	South Korea
Domain	kt.com
ASN	AS17841
Parent Range	125.128.0.0/11
Registry	KRNIC
ID	125.128.72.0-125.128.79.255

WHOIS Details

inetnum:            125.128.72.0 - 125.128.79.255
descr:              Korea Telecom
network-type:       CUSTOMER
address:            90 Buljeongro  Bundang-Gu Seongnam-Si Gyeonggi-Do
zip-code:           13606
created:            2019-12-05
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 125.128.64.0/19

Range	ASN	Company	Num of IPs
125.128.0.0/11	AS4766	Korea Telecom	2,097,152
125.128.0.0/11	AS9318	Korea Telecom	2,097,152

Nearby Ranges

BGP prefixes that overlap with 125.128.0.0/16

Range	ASN	Company	Num of IPs
125.128.0.0/11	AS4766	Korea Telecom	2,097,152
125.128.0.0/11	AS9318	Korea Telecom	2,097,152
125.128.1.0/24	AS152289	Korea Telecom	256

Hosted domains

There are 4 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
125.128.65.240	ati.go.kr	1
125.128.67.34	unimail.or.kr	1
125.128.69.165	129.go.kr	1
125.128.76.105	air.go.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

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

IP Address	ASN	Details
125.128.73.88	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`1.44ms` from Seoul, KR
125.128.75.162	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`3.72ms` from Seoul, KR
125.128.71.4	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`3.86ms` from Seoul, KR
125.128.76.4	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`3.51ms` from Seoul, KR
125.128.74.65	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`2.03ms` from Seoul, KR
125.128.69.157	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`1.84ms` from Seoul, KR
125.128.67.42	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`2.29ms` from Seoul, KR
125.128.65.2	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`8.08ms` from Seoul, KR
125.128.68.67	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`1.42ms` 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
23.226.234.3	AS3842 InMotion Hosting, Inc.	`0.28ms` from Atlanta, US
160.177.127.67	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`7.26ms` from Casablanca, MA
87.180.245.19	AS3320 Deutsche Telekom AG	`3.81ms` from Frankfurt am Main, DE
139.28.152.67	AS212341 Stephan Rakowski, trading as CSN-Solutions GmbH	`3.29ms` from Hamburg, DE
84.96.36.195	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`3.70ms` from Paris, FR
86.238.229.243	AS3215 Orange S.A.	`1.60ms` from Paris, FR
54.165.132.115	AS14618 Amazon.com, Inc.	`0.24ms` from Reston, US
174.27.7.163	AS209 CenturyLink Communications, LLC	`10.26ms` from Seattle, US
169.212.54.51	AS4766 Korea Telecom	`1.59ms` from Seoul, KR
39.108.108.51	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.13ms` from Shenzhen, CN
162.212.173.99	AS58065 Orion Network Limited	`0.12ms` from Tallinn, EE
121.25.21.99	AS4837 CHINA UNICOM China169 Backbone	`5.60ms` from Beijing, CN
192.66.63.35	AS31027 GlobalConnect A/S	`0.37ms` from Copenhagen, DK
23.126.52.195	AS7018 AT&T Enterprises, LLC	`3.01ms` from Dallas, US
52.238.211.195	AS8075 Microsoft Corporation	`0.19ms` from Des Moines, US
87.44.22.3	AS1213 ASIERA TECHNOLOGY SERVICES CLG	`3.95ms` from Dublin, IE
183.240.30.163	AS9808 China Mobile Communications Group Co., Ltd.	`4.34ms` from Guangzhou, CN
171.226.124.195	AS7552 Viettel Group	`0.28ms` from Hanoi, VN
38.54.15.19	AS138915 Kaopu Cloud HK Limited	`0.02ms` from Ho Chi Minh City, VN
72.111.128.195	AS6167 Verizon Business	`13.18ms` from Los Angeles, US
24.244.129.19	AS15146 Cable Bahamas	`6.65ms` from Miami, US
176.103.104.163	AS47156 Malnet LTD.	`1.45ms` from Moscow, RU
50.116.93.227	AS31898 Oracle Corporation	`0.16ms` from Phoenix, US
73.222.122.19	AS7922 Comcast Cable Communications, LLC	`7.99ms` from San Jose, US
222.117.28.179	AS4766 Korea Telecom	`1.34ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f6 -m9 125.128.88.154

traceroute to 125.128.88.154 (125.128.88.154): 9 hops max, 52 byte packets

6 [AS4134] 106.59.253.17 2.817 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Kunming, CN

On December 20th 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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