125.131.31.0/24

AS45973 · KOTRA

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Summary

Country	South Korea
Domain	kt.com
ASN	AS45973
Parent Range	125.128.0.0/11
Registry	APNIC
ID	KORNET

WHOIS Details

inetnum:        125.128.0.0 - 125.159.255.255
netname:        KORNET
descr:          Korea Telecom
admin-c:        IM667-AP
tech-c:         IM667-AP
country:        KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
changed:        hostmaster@nic.or.kr 20170203
source:         APNIC

irt:            IRT-KRNIC-KR
address:        Seoul Songpa-gu Jungdae-ro 135
e-mail:         hostmaster@nic.or.kr
abuse-mailbox:  hostmaster@nic.or.kr
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr 20150513
source:         APNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        IM667-AP
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr 20170328
source:         APNIC

inetnum:        125.128.0.0 - 125.159.255.255
netname:        KORNET-KR
descr:          Korea Telecom
country:        KR
admin-c:        IA9-KR
tech-c:         IM9-KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
remarks:        This information has been partially mirrored by APNIC from
remarks:        KRNIC. To obtain more specific information, please use the
remarks:        KRNIC whois server at whois.krnic.net.
changed:        hostmaster@nic.or.kr
source:         KRNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        IA9-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr
source:         KRNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        IM9-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr
source:         KRNIC

Overlapping Ranges

BGP prefixes that contain 125.131.31.0/24

Range	ASN	Company	Num of IPs
125.128.0.0/11	AS10167	Korea Telecom	2,097,152
125.128.0.0/11	AS131845	Korea Telecom	2,097,152
125.128.0.0/11	AS17584	Korea Telecom	2,097,152
125.128.0.0/11	AS17841	Korea Telecom	2,097,152
125.128.0.0/11	AS18323	Korea Telecom	2,097,152
125.128.0.0/11	AS38388	Korea Telecom	2,097,152
125.128.0.0/11	AS45973	Korea Telecom	2,097,152
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 28 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
125.131.31.46	kotratj.org.cn	11
125.131.31.25	bbkhc2023.co.kr	11
125.131.31.23	kotra.it	5
125.131.31.20	ikp.or.kr	1
125.131.31.45	kotra.cz	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

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

IP Address	ASN	Details
125.131.31.241	AS45973 KOTRA	`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
209.250.11.216	AS7029 Windstream Communications LLC	`0.48ms` from Ashburn, US
66.217.185.248	AS7029 Windstream Communications LLC	`0.63ms` from Ashburn, US
66.102.211.232	AS26703 Kalona Cooperative Telephone Company	`8.57ms` from Chicago, US
75.188.207.216	AS10796 Charter Communications Inc	`9.13ms` from Columbus, US
124.93.21.168	AS4837 CHINA UNICOM China169 Backbone	`11.98ms` from Dalian, CN
46.5.60.200	AS3209 Vodafone GmbH	`10.92ms` from Frankfurt am Main, DE
104.171.226.200	AS22552 eSited Solutions	`0.34ms` from Los Angeles, US
98.159.186.168	AS13576 SOUTH DAKOTA NETWORK	`9.84ms` from Minneapolis, US
142.115.210.104	AS577 Bell Canada	`3.32ms` from Montreal, CA
123.235.65.8	AS4837 CHINA UNICOM China169 Backbone	`2.38ms` from Qingdao, CN
118.32.103.168	AS4766 Korea Telecom	`1.33ms` from Seoul, KR
140.114.210.72	AS18047 National Tsing-Hua University	`2.44ms` from Taipei, TW
118.160.148.40	AS3462 Data Communication Business Group	`3.62ms` from Taipei, TW
20.188.0.88	AS8075 Microsoft Corporation	`0.15ms` from Tokyo, JP
142.173.167.24	AS7018 AT&T Enterprises, LLC	`2.16ms` from Ashburn, US
152.66.206.232	AS2547 Budapest University of Technology and Economics	`2.23ms` from Budapest, HU
65.68.37.216	AS7018 AT&T Enterprises, LLC	`10.36ms` from Dallas, US
81.149.22.184	AS2856 British Telecommunications PLC	`3.09ms` from London, GB
2.124.133.232	AS5607 Sky UK Limited	`4.76ms` from London, GB
1.123.222.200	AS1221 Telstra Limited	`5.29ms` from Melbourne, AU
151.60.13.72	AS1267 WIND TRE S.P.A.	`7.86ms` from Milan, IT
37.45.230.184	AS6697 Republican Unitary Telecommunication Enterprise Beltelecom	`1.67ms` from Minsk, BY
60.36.89.136	AS4713 NTT Communications Corporation	`10.20ms` from Osaka, JP
92.161.117.56	AS3215 Orange S.A.	`7.92ms` from Paris, FR
54.174.125.248	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US

Traceroute

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

traceroute -a -n -q1 125.131.31.254

traceroute to 125.131.31.254 (125.131.31.254): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.7 0.102 ms

2 [AS4766] 218.145.32.254 0.781 ms

3 *

4 *

5 [AS4766] 112.174.58.50 1.484 ms

6 *

7 *

8 [AS4766] 220.95.240.146 1.803 ms

9 [AS45973] 125.131.31.254 1.687 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On September 12th 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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