All IP Ranges
125.0.0.0/8
AS4766 | 125.128.0.0/11

125.128.0.0/11

AS4766 · Korea Telecom

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Summary

Country	South Korea
Domain	kt.com
ASN	AS4766
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 are contained by 125.128.0.0/11

Range	ASN	Company	Num of IPs
125.129.169.0/24	AS131845	Hanguktujaryujasanunyong jusikhoesa	256
125.133.136.0/24	AS17584	Korea Telecom	256
125.133.137.0/24	AS17584	Korea Telecom	256
125.133.138.0/24	AS17584	Korea Telecom	256
125.133.139.0/24	AS17584	Korea Telecom	256
125.132.159.0/24	AS18323	Bundangseouldaehakgyobyeongwon	256
125.132.205.0/24	AS18323	Bundangseouldaehakgyobyeongwon	256
125.129.210.0/24	AS38388	Korea Telecom	256
125.131.31.0/24	AS45973	KT	256
125.140.136.0/24	AS4766	Korea Telecom	256
125.140.64.0/24	AS4766	KT	256
125.140.66.0/24	AS4766	KT	256
125.129.145.0/24	AS10167	Korea Telecom	256
125.132.44.0/24	AS4766	Korea Telecom	256
125.132.45.0/24	AS4766	Korea Telecom	256
125.136.73.0/24	AS4766	Gwangjuyeojadaehakgyo	256
125.137.121.0/24	AS4766	KT	256
125.137.122.0/24	AS4766	KT	256
125.131.72.0/23	AS4766	Hangukgwahakgisulwon	512
125.136.74.0/23	AS4766	KT	512

Nearby Ranges

BGP prefixes that overlap with 125.0.0.0/8

Range	ASN	Company	Num of IPs
125.112.0.0/12	AS4134	CHINANET Zhejiang province network	1,048,576
125.88.0.0/13	AS135089	CHINANET Guangdong province network	524,288
125.200.0.0/13	AS4713	NTT DOCOMO BUSINESS,Inc.	524,288
125.64.0.0/13	AS139220	CHINANET Sichuan province network	524,288
125.88.0.0/13	AS4134	CHINANET Guangdong province network	524,288
125.80.0.0/13	AS141739	CHINANET Chongqing province network	524,288
125.40.0.0/13	AS4837	China Unicom Henan province network	524,288
125.64.0.0/13	AS4134	CHINANET Sichuan province network	524,288
125.64.0.0/13	AS4809	CHINANET Sichuan province network	524,288
125.240.0.0/13	AS17858	DACOM-PUBNETPLUS	524,288
125.240.0.0/13	AS9316	DACOM-PUBNETPLUS	524,288
125.16.0.0/13	AS9498	BHARTI INFOTEL LTD.	524,288
125.104.0.0/13	AS4134	CHINANET Zhejiang province network	524,288
125.240.0.0/13	AS9871	DACOM-PUBNETPLUS	524,288
125.40.0.0/13	AS9929	China Unicom Henan province network	524,288
125.240.0.0/13	AS9770	DACOM-PUBNETPLUS	524,288
125.80.0.0/13	AS4134	CHINANET Chongqing province network	524,288
125.88.0.0/13	AS140308	CHINANET Guangdong province network	524,288
125.88.0.0/13	AS58466	CHINANET Guangdong province network	524,288
125.88.0.0/13	AS136199	CHINANET Guangdong province network	524,288
125.240.0.0/13	AS38669	DACOM-PUBNETPLUS	524,288
125.240.0.0/13	AS38417	DACOM-PUBNETPLUS	524,288
125.240.0.0/13	AS38401	DACOM-PUBNETPLUS	524,288
125.64.0.0/13	AS38283	CHINANET Sichuan province network	524,288
125.192.0.0/13	AS2518	BIGLOBE Inc.	524,288
125.240.0.0/13	AS38398	DACOM-PUBNETPLUS	524,288
125.248.0.0/14	AS17858	DACOM-PUBNETPLUS	262,144
125.172.0.0/14	AS4713	NTT DOCOMO BUSINESS,Inc.	262,144
125.248.0.0/14	AS9316	DACOM-PUBNETPLUS	262,144
125.100.0.0/14	AS17506	ARTERIA Networks Corporation	262,144
125.36.0.0/14	AS4837	China Unicom Tianjin province network	262,144
125.26.0.0/15	AS23969	TOT public company limited	131,072
125.74.0.0/15	AS4134	CHINANET Gansu province network	131,072
125.74.0.0/15	AS141998	CHINANET Gansu province network	131,072
125.234.0.0/15	AS7552	Viettel Corporation	131,072
125.166.0.0/15	AS7713	PT Telekomunikasi Indonesia	131,072
125.164.0.0/16	AS7713	PT Telekomunikasi Indonesia	65,536
125.30.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
125.234.0.0/16	AS7552	xDSL Services of HaNoi	65,536
125.225.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
125.233.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
125.224.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
125.229.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
125.231.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
125.232.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
125.228.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
125.230.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536

Hosted domains

There are 4,745 domain names hosted across 1,306 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
125.141.133.250	xn--ai-vc9i603f.com	377
125.141.204.43	pnspin.co.kr	47
125.140.123.202	fireexpo.co.kr	36
125.141.245.20	gadk.net	31
125.141.133.89	freeoffice.co.kr	20
125.141.139.180	ssadagotowel.com	16
125.141.223.13	yeoboyacorp.co.kr	15
125.141.133.25	esafepass.kr	15
125.129.44.182	vottc.com	14
125.141.133.35	nahf.co.kr	12
125.141.235.17	msk.kr	12
125.141.133.201	exp-003.blog	11
125.130.56.233	csdy.or.kr	11
125.141.133.114	fungift.co.kr	11
125.141.204.44	kumhopolychem.co.kr	10
125.141.133.125	jccoffeemall.com	10
125.141.228.41	virobot.net	9
125.141.139.26	beanjib.com	9
125.141.199.86	pharmlinx.co.kr	9
125.141.204.53	conextt.com	8

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

1,016,116 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
125.145.241.134	AS4766 Korea Telecom	`1.25ms` from Seoul, KR
125.145.99.37	AS4766 Korea Telecom	`5.92ms` from Seoul, KR
125.145.106.173	AS4766 Korea Telecom	`4.26ms` from Seoul, KR
125.145.236.77	AS4766 Korea Telecom	`4.73ms` from Seoul, KR
125.145.103.137	AS4766 Korea Telecom	`6.45ms` from Seoul, KR
125.145.61.125	AS4766 Korea Telecom	`1.67ms` from Seoul, KR
125.145.0.69	AS4766 Korea Telecom	`1.07ms` from Seoul, KR
125.145.5.149	AS4766 Korea Telecom	`1.05ms` from Seoul, KR
125.145.166.245	AS4766 Korea Telecom	`1.32ms` from Seoul, KR
125.146.12.190	AS4766 Korea Telecom	`1.43ms` from Seoul, KR
125.146.57.107	AS4766 Korea Telecom	`2.61ms` from Seoul, KR
125.146.31.254	AS4766 Korea Telecom	`1.53ms` from Seoul, KR
125.146.37.169	AS4766 Korea Telecom	`5.26ms` from Seoul, KR
125.145.44.5	AS4766 Korea Telecom	`6.36ms` from Seoul, KR
125.145.67.241	AS4766 Korea Telecom	`0.96ms` from Seoul, KR
125.145.170.197	AS4766 Korea Telecom	`2.40ms` from Seoul, KR
125.146.63.49	AS4766 Korea Telecom	`3.21ms` from Seoul, KR
125.145.163.189	AS4766 Korea Telecom	`1.69ms` from Seoul, KR
125.145.232.29	AS4766 Korea Telecom	`5.03ms` from Seoul, KR
125.146.21.254	AS4766 Korea Telecom	`1.32ms` from Seoul, KR
125.145.40.85	AS4766 Korea Telecom	`4.58ms` from Seoul, KR
125.146.45.233	AS4766 Korea Telecom	`2.94ms` from Seoul, KR
125.145.117.4	AS4766 Korea Telecom	`5.94ms` from Seoul, KR
125.146.17.254	AS4766 Korea Telecom	`1.46ms` from Seoul, KR
125.145.202.37	AS4766 Korea Telecom	`6.54ms` 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
24.147.14.59	AS7922 Comcast Cable Communications, LLC	`5.12ms` from Boston, US
111.8.177.43	AS56047 China Mobile communications corporation	`5.09ms` from Changsha, CN
75.217.187.235	AS6167 Verizon Business	`16.86ms` from Dallas, US
121.37.244.187	AS55990 Huawei Cloud Service data center	`1.62ms` from Guangzhou, CN
108.137.167.107	AS16509 Amazon.com, Inc.	`0.10ms` from Jakarta, ID
2.223.6.123	AS5607 Sky UK Limited	`1.67ms` from London, GB
98.148.133.75	AS20001 Charter Communications Inc	`7.23ms` from Los Angeles, US
64.50.164.11	AS53740 optbit LLC	`8.25ms` from Minneapolis, US
87.242.90.75	AS208677 "Cloud Technologies" LLC trading as Cloud.ru	`1.05ms` from Moscow, RU
71.45.152.251	AS33363 Charter Communications, Inc	`10.58ms` from Murfreesboro, US
70.23.70.251	AS701 Verizon Business	`2.59ms` from New York City, US
91.135.182.11	AS43342 BPCE S.A.	`9.05ms` from Paris, FR
170.104.149.11	AS1798 State of Oregon	`2.40ms` from Portland, US
116.47.208.123	AS17858 LG POWERCOMM	`2.16ms` from Seoul, KR
116.124.105.219	AS9318 SK Broadband Co Ltd	`7.62ms` from Seoul, KR
4.205.104.251	AS8075 Microsoft Corporation	`0.17ms` from Toronto, CA
84.225.229.251	AS8448 CETIN Hungary Zrt.	`1.16ms` from Budapest, HU
201.25.163.75	AS8167 V tal	`0.98ms` from Curitiba, BR
154.125.224.11	AS8346 SONATEL-AS Autonomous System	`3.56ms` from Dakar, SN
217.11.54.27	AS34240 manitu GmbH	`4.64ms` from Frankfurt am Main, DE
175.44.16.139	AS4837 CHINA UNICOM China169 Backbone	`7.31ms` from Fuzhou, CN
105.16.17.11	AS37100 SEACOM Limited	`5.86ms` from Nairobi, KE
122.251.159.27	AS18077 Yamaguchi Cable Vision Co.,Ltd	`15.76ms` from Osaka, JP
180.199.195.155	AS18126 Chubu Telecommunications Company, Inc.	`9.01ms` from Osaka, JP
88.127.166.43	AS12322 Free SAS	`7.43ms` from Paris, FR

Traceroute

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

traceroute -a -n -q1 -m13 125.141.173.86

traceroute to 125.141.173.86 (125.141.173.86): 13 hops max, 52 byte packets

1 [AS397373] 192.154.230.1 226.341 ms

2 *

3 *

4 *

5 [AS3257] 89.149.187.102 1.194 ms

6 [AS3257] 76.74.48.138 5.684 ms

7 *

8 [AS4766] 112.174.91.217 125.769 ms

9 *

10 [AS4766] 112.174.25.122 142.042 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On December 14th 2025

What are IP address ranges?

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