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	AS38122	LG DACOM Corporation	524,288
61.32.0.0/13	AS45363	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	AS63199	LG DACOM Corporation	524,288
61.32.0.0/13	AS9578	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	AS17586	LG DACOM Corporation	524,288
61.32.0.0/13	AS10058	LG DACOM Corporation	524,288
61.32.0.0/13	AS10178	LG DACOM Corporation	524,288
61.32.0.0/13	AS38428	LG DACOM Corporation	524,288
61.32.0.0/13	AS3786	LG DACOM Corporation	524,288
61.32.0.0/13	AS4766	LG DACOM Corporation	524,288
61.32.0.0/13	AS9955	LG DACOM Corporation	524,288
61.32.0.0/13	AS9857	LG DACOM Corporation	524,288
61.32.0.0/13	AS9863	LG DACOM Corporation	524,288
61.32.0.0/13	AS9946	LG DACOM Corporation	524,288
61.32.0.0/13	AS9638	LG DACOM Corporation	524,288
61.40.0.0/14	AS9955	LG DACOM Corporation	262,144
61.40.0.0/14	AS45978	LG DACOM Corporation	262,144
61.40.0.0/14	AS3786	LG DACOM Corporation	262,144
61.40.0.0/14	AS23714	LG DACOM Corporation	262,144
61.40.0.0/14	AS17586	LG DACOM Corporation	262,144
61.40.0.0/14	AS55585	LG DACOM Corporation	262,144
61.40.0.0/14	AS9871	LG DACOM Corporation	262,144
61.174.0.0/15	AS136190	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
61.174.0.0/15	AS4134	CHINANET Zhejiang province network	131,072
61.130.0.0/16	AS58461	CHINANET Zhejiang province network	65,536
61.181.0.0/16	AS4837	China Unicom Tianjin province network	65,536
61.179.0.0/16	AS4837	China Unicom Shandong province network	65,536
61.160.0.0/16	AS4134	CHINANET jiangsu province network	65,536
61.55.0.0/16	AS4837	China Unicom Hebei province network	65,536
61.54.0.0/16	AS4837	China Unicom Henan province network	65,536
61.94.0.0/16	AS7713	PT. Telekomunikasi Indonesia	65,536
61.167.0.0/16	AS4837	China Unicom Heilongjiang province network	65,536
61.108.0.0/16	AS38669	DACOM-PUBNETPLUS	65,536
61.197.0.0/16	AS2514	NTT PC Communications,Inc.	65,536
61.59.0.0/16	AS4780	Digital United Inc.	65,536
61.156.0.0/16	AS4837	China Unicom IP network	65,536
61.163.0.0/16	AS4837	China Unicom Henan province network	65,536
61.154.0.0/16	AS4134	CHINANET Fujian province network	65,536
61.164.0.0/16	AS4134	CHINANET Zhejiang province network	65,536
61.168.0.0/16	AS4837	China Unicom Henan province network	65,536
61.182.0.0/16	AS4837	China Unicom Hebei province network	65,536
61.160.0.0/16	AS138950	CHINANET jiangsu province network	65,536
61.155.0.0/16	AS4134	CHINANET jiangsu province network	65,536

Hosted domains

There are 11,478 domain names hosted across 734 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	kca-academys.com	2685
61.78.75.253	koreagameac.com	1047
61.78.36.48	lonn.kr	841
61.78.36.49	marum.co.kr	825
61.78.36.26	webgood.co.kr	795
61.78.36.27	webgood.co.kr	792
61.78.36.45	doongdoongpet.com	789
61.78.36.44	korattancraft.com	788
61.78.36.28	psychogolf.co.kr	785
61.78.36.47	leadingtrust.com	781
61.78.36.29	ielle.co.kr	780
61.78.36.46	leadingtrust.com	775
61.78.36.43	samduck.kr	734
61.78.36.42	morimori.co.kr	720
61.78.75.248	goodjob-comartist.co.kr	222
61.78.62.142	myeongdongbreeze.com	48
61.74.156.125	raviens.co.kr	48
61.78.36.56	tcoa.co.kr	48
61.78.36.51	myaswell.com	48
61.78.75.238	koreaedugroup.com	42

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

267,873 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
61.72.213.206	AS4766 Korea Telecom	`1.06ms` from Seoul, KR
61.72.112.232	AS4766 Korea Telecom	`1.19ms` from Seoul, KR
61.72.41.188	AS4766 Korea Telecom	`1.37ms` from Seoul, KR
61.72.96.249	AS4766 Korea Telecom	`1.18ms` from Seoul, KR
61.72.240.1	AS4766 Korea Telecom	`0.90ms` from Seoul, KR
61.72.167.44	AS4766 Korea Telecom	`1.22ms` from Seoul, KR
61.72.165.1	AS4766 Korea Telecom	`1.21ms` from Seoul, KR
61.72.38.218	AS4766 Korea Telecom	`1.29ms` from Seoul, KR
61.72.209.168	AS4766 Korea Telecom	`1.24ms` from Seoul, KR
61.72.16.237	AS4766 Korea Telecom	`1.20ms` from Seoul, KR
61.72.191.62	AS4766 Korea Telecom	`1.53ms` from Seoul, KR
61.72.65.95	AS4766 Korea Telecom	`1.29ms` from Seoul, KR
61.72.174.238	AS4766 Korea Telecom	`1.16ms` from Seoul, KR
61.72.196.186	AS4766 Korea Telecom	`1.15ms` from Seoul, KR
61.72.60.152	AS4766 Korea Telecom	`1.53ms` from Seoul, KR
61.72.94.246	AS4766 Korea Telecom	`1.11ms` from Seoul, KR
61.72.91.169	AS4766 Korea Telecom	`1.20ms` from Seoul, KR
61.72.71.9	AS4766 Korea Telecom	`1.02ms` from Seoul, KR
61.72.34.144	AS4766 Korea Telecom	`1.17ms` from Seoul, KR
61.72.9.93	AS4766 Korea Telecom	`1.01ms` from Seoul, KR
61.72.203.114	AS4766 Korea Telecom	`1.30ms` from Seoul, KR
61.72.25.126	AS4766 Korea Telecom	`1.01ms` from Seoul, KR
61.72.173.254	AS4766 Korea Telecom	`1.20ms` from Seoul, KR
61.72.15.77	AS4766 Korea Telecom	`0.99ms` from Seoul, KR
61.72.93.33	AS4766 Korea Telecom	`1.22ms` 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
110.164.144.253	AS45758 Triple T Broadband Public Company Limited	`4.37ms` from Bangkok, TH
109.103.46.253	AS9050 Orange Romania S.A.	`0.68ms` from Bucharest, RO
154.180.199.93	AS8452 TE-AS	`7.59ms` from Cairo, EG
97.147.58.189	AS6167 Verizon Business	`18.38ms` from Dallas, US
37.84.104.141	AS3320 Deutsche Telekom AG	`15.56ms` from Frankfurt am Main, DE
59.50.24.93	AS4134 CHINANET-BACKBONE	`1.72ms` from Haikou, CN
42.52.225.237	AS4837 CHINA UNICOM China169 Backbone	`11.98ms` from Liaoyang, CN
79.255.183.189	AS3320 Deutsche Telekom AG	`6.24ms` from Nuernberg, DE
34.6.118.13	AS396982 Google LLC	`0.14ms` from Oudeschip, NL
3.86.82.45	AS14618 Amazon.com, Inc.	`0.42ms` from Reston, US
3.238.154.141	AS14618 Amazon.com, Inc.	`0.18ms` from Reston, US
112.159.118.157	AS17858 LG POWERCOMM	`2.03ms` from Seoul, KR
171.121.19.125	AS4837 CHINA UNICOM China169 Backbone	`6.84ms` from Taiyuan, CN
46.120.205.45	AS12400 Partner Communications Ltd.	`1.52ms` from Tel Aviv, IL
103.248.244.141	AS12975 PALTEL Autonomous System	`6.98ms` from Tel Aviv, IL
90.149.95.157	AS2527 Sony Network Communications Inc.	`2.52ms` from Tokyo, JP
52.148.211.205	AS8075 Microsoft Corporation	`0.16ms` from Amsterdam, NL
169.47.35.125	AS36351 IBM Cloud	`0.42ms` from Ashburn, US
13.92.61.45	AS8075 Microsoft Corporation	`0.43ms` from Ashburn, US
188.4.234.125	AS1241 Forthnet	`1.95ms` from Athens, GR
50.81.193.157	AS30036 Mediacom Communications Corp	`14.33ms` from Atlanta, US
34.242.209.221	AS16509 Amazon.com, Inc.	`0.17ms` from Dublin, IE
212.202.159.13	AS20676 Plusnet GmbH	`1.59ms` from Duesseldorf, DE
116.100.187.253	AS24086 Viettel Corporation	`2.61ms` from Ho Chi Minh City, VN
92.26.160.13	AS13285 TalkTalk Communications Limited	`1.95ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f4 61.72.170.160

traceroute to 61.72.170.160 (61.72.170.160): 64 hops max, 52 byte packets

4 [AS36236] 104.225.2.194 0.286 ms

5 *

6 *

7 *

8 *

9 [AS4766] 112.174.91.217 188.688 ms

10 *

11 *

12 *

13 [AS4766] 61.72.170.160 197.071 ms

Measurement taken from

IPinfo ProbeNet in Durham, US

On December 14th 2025

What are IP address ranges?

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