125.128.64.0/19

AS17841 · NATIONAL INFORMATION RESOURCES SERVICE

Need more data or want to access it via API or data downloads? Sign up to get free access

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:             kornet_ip@kt.com
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

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
125.128.69.165	129.go.kr	1
125.128.76.105	air.go.kr	1
125.128.67.34	unimail.or.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

Read more

Pingable IPs

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

IP Address	ASN	Details
125.128.73.82	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`1.40ms` from Seoul, KR
125.128.75.10	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`3.78ms` from Seoul, KR
125.128.74.65	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`2.10ms` from Seoul, KR
125.128.68.67	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`1.36ms` from Seoul, KR
125.128.76.4	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`3.60ms` from Seoul, KR
125.128.69.157	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`1.82ms` from Seoul, KR
125.128.71.4	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`3.91ms` from Seoul, KR
125.128.65.2	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`8.15ms` from Seoul, KR
125.128.67.42	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`2.24ms` 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
94.68.126.3	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`8.74ms` from Athens, GR
139.91.157.19	AS8522 Foundation of Research and Technology Hellas	`8.45ms` from Athens, GR
45.26.110.195	AS7018 AT&T Enterprises, LLC	`13.13ms` from Atlanta, US
186.115.32.3	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`18.47ms` from Bogotá, CO
189.9.13.35	AS10954 SERVICO FEDERAL DE PROCESSAMENTO DE DADOS - SERPRO	`0.46ms` from Brasilia, BR
189.63.17.67	AS28573 Claro NXT Telecomunicacoes Ltda	`10.13ms` from Brasilia, BR
5.149.140.227	AS6696 VERIXI SA	`0.22ms` from Brussels, BE
154.178.157.147	AS8452 TE-AS	`6.57ms` from Cairo, EG
222.162.32.35	AS4837 CHINA UNICOM China169 Backbone	`11.43ms` from Changchun, CN
65.190.219.67	AS11426 Charter Communications Inc	`14.69ms` from Charlotte, US
217.208.233.3	AS3301 Telia Company AB	`1.80ms` from Copenhagen, DK
173.173.42.163	AS11427 Charter Communications Inc	`6.28ms` from Dallas, US
91.54.200.211	AS3320 Deutsche Telekom AG	`5.46ms` from Duesseldorf, DE
58.176.133.99	AS9269 Hong Kong Broadband Network Ltd.	`1.06ms` from Hong Kong, HK
108.250.14.99	AS7018 AT&T Enterprises, LLC	`2.84ms` from Houston, US
4.240.76.51	AS8075 Microsoft Corporation	`0.17ms` from Lohogaon, IN
109.153.13.131	AS2856 British Telecommunications PLC	`3.23ms` from London, GB
198.58.145.35	AS1403 EBOX	`1.46ms` from Montreal, CA
34.39.178.195	AS396982 Google LLC	`0.11ms` from Sao Paulo, BR
107.119.180.35	AS7287 AT&T Enterprises, LLC	`1.83ms` from Seattle, US
67.93.73.3	AS2828 Verizon Business	`16.41ms` from Secaucus, US
119.70.3.19	AS17858 LG POWERCOMM	`2.05ms` from Seoul, KR
124.216.181.115	AS45361 Ulsan Jung-Ang Broadcasting Network	`7.62ms` from Seoul, KR
59.17.27.243	AS4766 Korea Telecom	`1.41ms` from Seoul, KR
121.147.39.99	AS4766 Korea Telecom	`5.48ms` 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 -f5 -m8 125.128.80.107

traceroute to 125.128.80.107 (125.128.80.107): 8 hops max, 52 byte packets

5 [] 212.68.52.69 6.118 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Istanbul, TR

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales