61.72.0.0/13

AS4766 · Korea Telecom

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Summary

Country	South Korea
Domain	kt.com
ASN	AS4766
Registry	APNIC
ID	KORNET-KR

WHOIS Details

inetnum:        61.72.0.0 - 61.75.255.255
netname:        KORNET
descr:          Korea Telecom
country:        KR
admin-c:        IM667-AP
tech-c:         IM667-AP
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2025-11-03T08:14:02Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        9, Jinheung-gil, Naju-si, Jeollanam-do
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2020-04-09
mnt-by:         MNT-KRNIC-AP
last-modified:  2025-09-04T01:00:01Z
source:         APNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
country:        KR
phone:          +82-2-500-6630
e-mail:         [email protected]
nic-hdl:        IM667-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2017-03-28T06:37:04Z
source:         APNIC

inetnum:        61.72.0.0 - 61.75.255.255
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.kisa.or.kr.
source:         KRNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        KT Head Office
country:        KR
phone:          +82-2-500-6630
e-mail:         [email protected]
nic-hdl:        IA9-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected] 20240912
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.kisa.or.kr.
source:         KRNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        KT Head Office
country:        KR
phone:          +82-2-500-6630
e-mail:         [email protected]
nic-hdl:        IM9-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected] 20240912
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.kisa.or.kr.
source:         KRNIC

Overlapping Ranges

BGP prefixes that are contained by 61.72.0.0/13

Range	ASN	Company	Num of IPs
61.78.157.0/24	AS9784	(ju)ibigukmindeu	256
61.72.46.0/24	AS152221	Yeonhapseutibi	256
61.74.93.0/24	AS9318	Eseuibrodeudeujusikhoesa	256
61.74.94.0/24	AS9318	Eseuibrodeudeujusikhoesa	256
61.75.198.0/24	AS9631	Yeongsandaehakgyo	256
61.75.199.0/24	AS9631	Yeongsandaehakgyo	256
61.75.200.0/24	AS9631	Yeongsandaehakgyo	256
61.75.201.0/24	AS9631	Yeongsandaehakgyo	256
61.76.236.0/24	AS9631	Yeongsandaehakgyo	256
61.76.237.0/24	AS9631	Yeongsandaehakgyo	256
61.76.238.0/24	AS9631	Yeongsandaehakgyo	256
61.78.74.0/24	AS10185	KT	256
61.72.224.0/24	AS17841	KT	256
61.72.225.0/24	AS17841	Korea Telecom	256
61.72.226.0/24	AS17841	Korea Telecom	256
61.72.230.0/24	AS17841	Korea Telecom	256
61.72.238.0/24	AS17841	Korea Telecom	256
61.79.246.0/24	AS38391	Korea Telecom	256
61.77.29.0/24	AS38403	Korea Telecom	256
61.79.88.0/24	AS38403	Korea Telecom	256
61.79.247.0/24	AS38404	Korea Telecom	256
61.77.45.0/24	AS38406	Gyeonggidohwaseongosangyoyukjiwoncheong	256
61.77.19.0/24	AS38408	Gyeonggidoanyanggwacheongyoyukjiwoncheong	256
61.74.191.0/24	AS38427	(ju)poseu	256
61.75.253.0/24	AS38427	(ju)poseu	256
61.75.254.0/24	AS38427	(ju)poseu	256
61.78.113.0/24	AS4766	Seongmobyeongwon	256
61.78.115.0/24	AS4766	Seongmobyeongwon	256
61.73.184.0/24	AS55615	(ju)deojonbijeuon	256
61.73.185.0/24	AS55615	(ju)deojonbijeuon	256
61.73.212.0/24	AS55615	(ju)deojonbijeuon	256
61.78.0.0/24	AS55615	(ju)deojonbijeuon	256
61.78.12.0/24	AS55615	(ju)deojonbijeuon	256
61.74.92.0/24	AS9318	Eseuibrodeudeujusikhoesa	256
61.77.180.0/23	AS4766	Korea Telecom	512
61.72.128.0/23	AS18031	Korea Telecom	512
61.72.126.0/23	AS18031	Korea Telecom	512
61.72.180.0/22	AS4766	KT	1,024

Nearby Ranges

BGP prefixes that overlap with 61.0.0.0/8

Range	ASN	Company	Num of IPs
61.32.0.0/13	AS38428	LG DACOM Corporation	524,288
61.32.0.0/13	AS4766	LG DACOM Corporation	524,288
61.32.0.0/13	AS9946	LG DACOM Corporation	524,288
61.32.0.0/13	AS3786	LG DACOM Corporation	524,288
61.32.0.0/13	AS38122	LG DACOM Corporation	524,288
61.32.0.0/13	AS10058	LG DACOM Corporation	524,288
61.32.0.0/13	AS9638	LG DACOM Corporation	524,288
61.32.0.0/13	AS138195	LG DACOM Corporation	524,288
61.32.0.0/13	AS10185	LG DACOM Corporation	524,288
61.32.0.0/13	AS63199	LG DACOM Corporation	524,288
61.32.0.0/13	AS9857	LG DACOM Corporation	524,288
61.32.0.0/13	AS13335	LG DACOM Corporation	524,288
61.32.0.0/13	AS23714	LG DACOM Corporation	524,288
61.32.0.0/13	AS10178	LG DACOM Corporation	524,288
61.32.0.0/13	AS9955	LG DACOM Corporation	524,288
61.32.0.0/13	AS9578	LG DACOM Corporation	524,288
61.32.0.0/13	AS45363	LG DACOM Corporation	524,288
61.32.0.0/13	AS9863	LG DACOM Corporation	524,288
61.32.0.0/13	AS17586	LG DACOM Corporation	524,288
61.40.0.0/14	AS17586	LG DACOM Corporation	262,144
61.40.0.0/14	AS45978	LG DACOM Corporation	262,144
61.40.0.0/14	AS9955	LG DACOM Corporation	262,144
61.40.0.0/14	AS9871	LG DACOM Corporation	262,144
61.40.0.0/14	AS23714	LG DACOM Corporation	262,144
61.40.0.0/14	AS55585	LG DACOM Corporation	262,144
61.40.0.0/14	AS3786	LG DACOM Corporation	262,144
61.174.0.0/15	AS136190	CHINANET Zhejiang province network	131,072
61.174.0.0/15	AS4134	CHINANET Zhejiang province network	131,072
61.84.0.0/15	AS4766	Korea Telecom	131,072
61.148.0.0/15	AS4808	China Unicom IP network	131,072
61.52.0.0/15	AS4837	China Unicom Henan province network	131,072
61.86.0.0/16	AS18081	Kintetsu Cable Network Ltd.	65,536
61.108.0.0/16	AS152226	DACOM-PUBNETPLUS	65,536
61.199.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
61.157.0.0/16	AS38283	CHINANET Sichuan province network	65,536
61.89.0.0/16	AS18081	Kintetsu Cable Network Ltd.	65,536
61.188.0.0/16	AS38283	CHINANET Sichuan province network	65,536
61.232.0.0/16	AS24138	China Mobile Communications Group Co., Ltd.	65,536
61.231.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
61.108.0.0/16	AS38120	DACOM-PUBNETPLUS	65,536
61.108.0.0/16	AS38669	DACOM-PUBNETPLUS	65,536
61.207.0.0/16	AS4713	Open Computer Network	65,536
61.227.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
61.225.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
61.228.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
61.62.0.0/16	AS18182	Sony Network Taiwan Limited	65,536
61.154.0.0/16	AS140329	CHINANET Fujian province network	65,536
61.224.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
61.229.0.0/16	AS3462	Chunghwa Telecom Co.,Ltd.	65,536
61.155.0.0/16	AS137702	CHINANET jiangsu province network	65,536

Hosted domains

There are 11,690 domain names hosted across 733 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
61.78.75.231	sbs-artdesign.co.kr	2661
61.78.75.253	sbsgameart.com	984
61.78.36.48	xn--9t4b11dob.com	856
61.78.36.49	skein.kr	841
61.78.36.45	gatidoksha.com	812
61.78.36.27	webgood.co.kr	810
61.78.36.26	webgood.co.kr	809
61.78.36.29	jeonmang.co.kr	801
61.78.36.28	xn--o39a91gi2cs43a.net	800
61.78.36.47	leadingtrust.com	792
61.78.36.44	kfishing.co.kr	790
61.78.36.46	leadingtrust.com	785
61.78.36.43	drforhair.co.kr	745
61.78.36.42	drforhair.co.kr	733
61.78.75.248	korean-air.kr	217
61.78.36.56	tcoa.co.kr	66
61.78.36.54	thevapor.co.kr	62
61.78.36.51	viviabel.com	61
61.78.36.12	sexyya.co.kr	60
61.74.156.125	someonehotel.com	48

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

264,321 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
61.76.65.105	AS4766 Korea Telecom	`6.95ms` from Seoul, KR
61.75.230.1	AS4766 Korea Telecom	`6.99ms` from Seoul, KR
61.76.82.173	AS4766 Korea Telecom	`6.51ms` from Seoul, KR
61.76.37.30	AS4766 Korea Telecom	`7.18ms` from Seoul, KR
61.75.190.193	AS4766 Korea Telecom	`6.55ms` from Seoul, KR
61.76.27.251	AS4766 Korea Telecom	`7.08ms` from Seoul, KR
61.76.79.223	AS4766 Korea Telecom	`6.98ms` from Seoul, KR
61.75.244.156	AS4766 Korea Telecom	`7.47ms` from Seoul, KR
61.76.68.1	AS4766 Korea Telecom	`7.60ms` from Seoul, KR
61.76.16.132	AS4766 Korea Telecom	`7.13ms` from Seoul, KR
61.75.195.94	AS4766 Korea Telecom	`7.57ms` from Seoul, KR
61.75.232.246	AS4766 Korea Telecom	`6.99ms` from Seoul, KR
61.75.210.75	AS4766 Korea Telecom	`7.07ms` from Seoul, KR
61.75.228.244	AS4766 Korea Telecom	`7.28ms` from Seoul, KR
61.76.17.236	AS4766 Korea Telecom	`6.43ms` from Seoul, KR
61.76.58.85	AS4766 Korea Telecom	`6.67ms` from Seoul, KR
61.75.193.88	AS4766 Korea Telecom	`6.47ms` from Seoul, KR
61.75.161.3	AS4766 Korea Telecom	`6.41ms` from Seoul, KR
61.76.76.193	AS4766 Korea Telecom	`6.66ms` from Seoul, KR
61.76.28.70	AS4766 Korea Telecom	`8.37ms` from Seoul, KR
61.76.39.74	AS4766 Korea Telecom	`7.22ms` from Seoul, KR
61.76.81.120	AS4766 Korea Telecom	`7.29ms` from Seoul, KR
61.76.69.129	AS4766 Korea Telecom	`5.99ms` from Seoul, KR
61.75.213.115	AS4766 Korea Telecom	`6.61ms` from Seoul, KR
61.76.62.190	AS4766 Korea Telecom	`6.03ms` 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
45.88.65.253	AS57866 Fusix Networks B.V.	`0.52ms` from Amsterdam, NL
67.140.79.45	AS7029 Windstream Communications LLC	`9.76ms` from Atlanta, US
195.175.11.45	AS9121 Turk Telekomunikasyon Anonim Sirketi	`2.30ms` from Bursa, TR
47.224.115.125	AS20115 Charter Communications LLC	`11.24ms` from Chicago, US
96.65.102.93	AS7922 Comcast Cable Communications, LLC	`5.32ms` from Chicago, US
104.231.154.77	AS10796 Charter Communications Inc	`14.88ms` from Columbus, US
212.202.159.13	AS20676 Plusnet GmbH	`1.69ms` from Duesseldorf, DE
102.222.209.253	AS328674 Mzansi ComNet	`0.48ms` from Durban, ZA
171.234.153.253	AS7552 Viettel Group	`5.78ms` from Hanoi, VN
66.244.84.237	AS11550 Smithville Digital, LLC	`2.06ms` from Indianapolis, US
20.40.50.221	AS8075 Microsoft Corporation	`0.22ms` from Lohogaon, IN
104.172.23.237	AS20001 Charter Communications Inc	`5.42ms` from Los Angeles, US
97.170.147.77	AS6167 Verizon Business	`12.40ms` from Los Angeles, US
151.13.145.77	AS1267 WIND TRE S.P.A.	`5.80ms` from Milan, IT
69.178.255.189	AS12042 Fidium	`8.09ms` from Minneapolis, US
3.99.113.141	AS16509 Amazon.com, Inc.	`0.13ms` from Montreal, CA
223.29.113.141	AS18126 Chubu Telecommunications Company, Inc.	`3.17ms` from Osaka, JP
217.167.228.29	AS3215 Orange S.A.	`1.13ms` from Paris, FR
180.169.134.13	AS4812 China Telecom (Group)	`3.39ms` from Shanghai, CN
143.189.80.109	AS2527 Sony Network Communications Inc.	`3.40ms` from Tokyo, JP
80.66.62.253	AS28889 LinzNet Internet Service Provider GmbH	`0.14ms` from Vienna, AT
84.85.86.61	AS1136 KPN B.V.	`1.07ms` from Amsterdam, NL
102.96.122.61	AS36925 MEDITELECOM	`19.54ms` from Casablanca, MA
222.211.34.29	AS4134 CHINANET-BACKBONE	`5.93ms` from Chengdu, CN
177.220.170.109	AS14868 Ligga Telecomunicações S.A.	`0.25ms` from Curitiba, BR

Traceroute

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

traceroute -a -n -q1 61.74.148.254

traceroute to 61.74.148.254 (61.74.148.254): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.31 0.078 ms

2 [AS4766] 218.145.32.254 0.767 ms

3 *

4 *

5 [AS4766] 112.174.120.82 1.363 ms

6 [AS4766] 112.189.15.214 0.924 ms

7 [AS4766] 61.74.148.254 1.355 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On November 28th 2025

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