All IP Ranges
221.0.0.0/8
AS4766 | 221.160.0.0/13

221.160.0.0/13

AS4766 · Korea Telecom

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Summary

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

WHOIS Details

inetnum:        221.160.0.0 - 221.167.255.255
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:  2025-11-03T08:15:10Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        9, Jinheung-gil, Naju-si, Jeollanam-do
e-mail:         irt@nic.or.kr
abuse-mailbox:  irt@nic.or.kr
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
remarks:        irt@nic.or.kr 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:         kornet_ip@kt.com
nic-hdl:        IM667-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2017-03-28T06:37:04Z
source:         APNIC

inetnum:        221.160.0.0 - 221.167.255.255
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:         kornet_ip@kt.com
nic-hdl:        IA9-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr 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:         kornet_ip@kt.com
nic-hdl:        IM9-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr 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 221.160.0.0/13

Range	ASN	Company	Num of IPs
221.163.32.0/24	AS18323	Bundangseouldaehakgyobyeongwon	256
221.160.151.0/24	AS38422	Seowondaehakgyo	256
221.160.183.0/24	AS38422	Seowondaehakgyo	256
221.160.143.0/24	AS4766	Semyeongdaehakgyo	256
221.160.178.0/24	AS4766	Korea Telecom	256
221.160.197.0/24	AS4766	Hanseodaehakgyo	256
221.160.30.0/24	AS4766	Korea Telecom	256
221.162.86.0/24	AS4766	KT	256
221.164.9.0/24	AS131101	Korea Telecom	256
221.161.160.0/24	AS9780	Injedaehakgyo	256
221.164.0.0/24	AS9631	Yeongsandaehakgyo	256
221.164.1.0/24	AS9631	Yeongsandaehakgyo	256
221.164.2.0/24	AS9631	Yeongsandaehakgyo	256
221.164.3.0/24	AS9631	Yeongsandaehakgyo	256
221.164.5.0/24	AS9631	Yeongsandaehakgyo	256
221.164.68.0/24	AS9631	Yeongsandaehakgyo	256
221.164.69.0/24	AS9631	Yeongsandaehakgyo	256
221.164.70.0/24	AS9631	Yeongsandaehakgyo	256
221.164.71.0/24	AS9631	Yeongsandaehakgyo	256

Nearby Ranges

BGP prefixes that overlap with 221.0.0.0/8

Range	ASN	Company	Num of IPs
221.144.0.0/12	AS4766	Korea Telecom	1,048,576
221.144.0.0/12	AS152214	Korea Telecom	1,048,576
221.144.0.0/12	AS9856	Korea Telecom	1,048,576
221.240.0.0/12	AS17506	ARTERIA Networks Corporation	1,048,576
221.224.0.0/13	AS137702	CHINANET jiangsu province network	524,288
221.176.0.0/13	AS141425	China Mobile Communications Corporation	524,288
221.224.0.0/13	AS137697	CHINANET jiangsu province network	524,288
221.176.0.0/13	AS132510	China Mobile Communications Corporation	524,288
221.224.0.0/13	AS4134	CHINANET jiangsu province network	524,288
221.176.0.0/13	AS24445	China Mobile Communications Corporation	524,288
221.176.0.0/13	AS9808	China Mobile Communications Corporation	524,288
221.224.0.0/13	AS131325	CHINANET jiangsu province network	524,288
221.224.0.0/13	AS138950	CHINANET jiangsu province network	524,288
221.224.0.0/13	AS146966	CHINANET jiangsu province network	524,288
221.224.0.0/13	AS23650	CHINANET jiangsu province network	524,288
221.184.0.0/13	AS4713	NTT DOCOMO BUSINESS,Inc.	524,288
221.224.0.0/13	AS134770	CHINANET jiangsu province network	524,288
221.224.0.0/13	AS134756	CHINANET jiangsu province network	524,288
221.224.0.0/13	AS4809	CHINANET jiangsu province network	524,288
221.224.0.0/13	AS140292	CHINANET jiangsu province network	524,288
221.176.0.0/13	AS139080	China Mobile Communications Corporation	524,288
221.176.0.0/13	AS56040	China Mobile Communications Corporation	524,288
221.176.0.0/13	AS56046	China Mobile Communications Corporation	524,288
221.176.0.0/13	AS56048	China Mobile Communications Corporation	524,288
221.176.0.0/13	AS56044	China Mobile Communications Corporation	524,288
221.216.0.0/13	AS4808	China Unicom Beijing province network	524,288
221.176.0.0/13	AS56042	China Mobile Communications Corporation	524,288
221.232.0.0/14	AS58563	CHINANET Hubei province network	262,144
221.140.0.0/14	AS9318	SK Broadband Co Ltd	262,144
221.124.0.0/14	AS9304	HGC Global Communications Limited	262,144
221.232.0.0/14	AS4134	CHINANET Hubei province network	262,144
221.200.0.0/14	AS4837	China Unicom Liaoning Province Network	262,144
221.8.0.0/15	AS4837	China Unicom JILIN province network	131,072
221.214.0.0/15	AS4837	China Unicom Shandong province network	131,072
221.130.0.0/15	AS9808	China Mobile Communications Corporation	131,072
221.204.0.0/15	AS4837	China Unicom Shanxi Province Network	131,072
221.170.0.0/15	AS2518	BIGLOBE Inc.	131,072
221.130.0.0/15	AS56041	China Mobile Communications Corporation	131,072
221.130.0.0/15	AS56042	China Mobile Communications Corporation	131,072
221.138.0.0/15	AS9318	SK Broadband Co Ltd	131,072
221.169.0.0/16	AS4780	Digital United I	65,536
221.6.0.0/16	AS140717	China Unicom Jiangsu province network	65,536
221.213.0.0/16	AS4837	China Unicom Yunnan province network	65,536
221.137.0.0/16	AS9812	Oriental Cable Network Co., Ltd.	65,536
221.168.0.0/16	AS4766	Korea Telecom	65,536
221.117.0.0/16	AS17506	ARTERIA Networks Corporation	65,536
221.6.0.0/16	AS4837	China Unicom Jiangsu province network	65,536
221.115.0.0/16	AS17506	ARTERIA Networks Corporation	65,536
221.114.0.0/16	AS17506	ARTERIA Networks Corporation	65,536

Hosted domains

There are 688 domain names hosted across 319 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
221.161.197.55	vaimedia.com	77
221.161.197.34	geoje-rio.com	66
221.167.210.244	tess.kr	23
221.163.201.52	udmtek-company.com	15
221.160.135.15	xn--hz2b91erwftqdczu.com	12
221.162.94.238	piting.kr	11
221.161.197.196	geummalogistics.com	10
221.162.37.119	0970.co.kr	8
221.165.185.139	gotem.kr	8
221.165.153.136	gahbin.com	8
221.161.136.17	pnuh.org	7
221.161.197.197	hankookt.net	7
221.164.14.38	disabledsafety.com	6
221.161.97.170	xn--9t4bi0fwvo.kr	6
221.164.83.57	sejinintc.com	6
221.163.60.144	yuratech.kr	6
221.161.197.185	bizchart.co.kr	6
221.167.230.72	namichoon.com	5
221.165.27.251	010car.kr	5
221.163.48.130	yuzasoft.co.kr	5

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

294,840 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
221.160.183.67	AS38422 Seowon University	`3.79ms` from Seoul, KR
221.160.165.204	AS4766 Korea Telecom	`3.64ms` from Seoul, KR
221.160.116.207	AS4766 Korea Telecom	`4.10ms` from Seoul, KR
221.160.167.54	AS4766 Korea Telecom	`3.08ms` from Seoul, KR
221.160.17.158	AS4766 Korea Telecom	`3.24ms` from Seoul, KR
221.160.95.126	AS4766 Korea Telecom	`3.38ms` from Seoul, KR
221.160.73.84	AS4766 Korea Telecom	`3.11ms` from Seoul, KR
221.160.11.126	AS4766 Korea Telecom	`3.88ms` from Seoul, KR
221.160.62.254	AS4766 Korea Telecom	`3.54ms` from Seoul, KR
221.160.42.61	AS4766 Korea Telecom	`2.75ms` from Seoul, KR
221.160.89.113	AS4766 Korea Telecom	`4.16ms` from Seoul, KR
221.160.151.11	AS38422 Seowon University	`4.02ms` from Seoul, KR
221.160.138.102	AS4766 Korea Telecom	`3.84ms` from Seoul, KR
221.160.145.178	AS4766 Korea Telecom	`2.69ms` from Seoul, KR
221.160.155.126	AS4766 Korea Telecom	`3.25ms` from Seoul, KR
221.160.140.19	AS4766 Korea Telecom	`3.62ms` from Seoul, KR
221.160.90.1	AS4766 Korea Telecom	`3.22ms` from Seoul, KR
221.160.58.94	AS4766 Korea Telecom	`3.40ms` from Seoul, KR
221.160.1.108	AS4766 Korea Telecom	`4.72ms` from Seoul, KR
221.160.142.218	AS4766 Korea Telecom	`3.46ms` from Seoul, KR
221.160.28.14	AS4766 Korea Telecom	`4.32ms` from Seoul, KR
221.160.143.237	AS4766 Korea Telecom	`4.59ms` from Seoul, KR
221.160.192.129	AS4766 Korea Telecom	`5.70ms` from Seoul, KR
221.160.173.100	AS4766 Korea Telecom	`4.70ms` from Seoul, KR
221.160.65.44	AS4766 Korea Telecom	`5.58ms` 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
82.139.114.109	AS12414 Solcon Internetdiensten B.V.	`1.57ms` from Amsterdam, NL
157.97.197.173	AS198089 IP Visie Networking B.V.	`0.29ms` from Amsterdam, NL
27.33.89.205	AS7545 TPG Telecom Limited	`0.69ms` from Brisbane, AU
125.67.146.221	AS4134 CHINANET-BACKBONE	`7.71ms` from Chengdu, CN
69.65.10.205	AS32181 GigeNET	`0.12ms` from Chicago, US
73.176.75.205	AS7922 Comcast Cable Communications, LLC	`3.86ms` from Chicago, US
34.59.72.109	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
216.201.152.205	AS25956 Logix	`0.33ms` from Dallas, US
182.42.96.109	AS4134 CHINANET-BACKBONE	`1.00ms` from Hohhot, CN
45.188.253.253	AS269552 NETBRAX SERVIÇOS E COMUNICAÇÃO MULTIMIDIA LTDA	`2.20ms` from Osasco, BR
173.164.211.221	AS7922 Comcast Cable Communications, LLC	`6.89ms` from San Jose, US
183.107.186.13	AS4766 Korea Telecom	`3.20ms` from Seoul, KR
91.213.57.93	AS49595 ILSA LAND SRL	`1.37ms` from Timisoara, RO
195.242.92.125	AS34324 Netlink Sp. z o o	`5.16ms` from Wrocław, PL
57.153.47.157	AS8075 Microsoft Corporation	`0.23ms` from Amsterdam, NL
108.159.199.13	AS16509 Amazon.com, Inc.	`0.34ms` from Ashburn, US
101.98.113.237	AS9790 Two Degrees Networks Limited	`1.56ms` from Auckland, NZ
50.236.246.237	AS7922 Comcast Cable Communications, LLC	`1.21ms` from Chicago, US
84.142.71.77	AS3320 Deutsche Telekom AG	`7.36ms` from Frankfurt am Main, DE
80.238.178.93	AS136907 HUAWEI CLOUDS	`14.51ms` from Hong Kong, HK
113.254.230.77	AS9304 HGC Global Communications Limited	`1.60ms` from Hong Kong, HK
109.162.105.253	AS15895 "Kyivstar" PJSC	`8.42ms` from Kyiv, UA
106.70.187.221	AS4804 Microplex PTY LTD	`2.55ms` from Melbourne, AU
151.84.179.45	AS1267 WIND TRE S.P.A.	`1.81ms` from Milan, IT
13.36.146.29	AS16509 Amazon.com, Inc.	`0.13ms` 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 221.160.10.190

traceroute to 221.160.10.190 (221.160.10.190): 64 hops max, 52 byte packets

1 [AS15169] 172.253.64.138 1.111 ms

2 *

3 *

4 [AS4766] 112.174.56.70 4.108 ms

5 *

6 [AS4766] 221.160.10.190 4.517 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On December 6th 2025

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