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

Nearby Ranges

BGP prefixes that overlap with 221.0.0.0/8

Range	ASN	Company	Num of IPs
221.144.0.0/12	AS38697	Korea Telecom	1,048,576
221.144.0.0/12	AS17851	Korea Telecom	1,048,576
221.144.0.0/12	AS45400	Korea Telecom	1,048,576
221.144.0.0/12	AS45360	Korea Telecom	1,048,576
221.144.0.0/12	AS152214	Korea Telecom	1,048,576
221.144.0.0/12	AS17576	Korea Telecom	1,048,576
221.144.0.0/12	AS38405	Korea Telecom	1,048,576
221.144.0.0/12	AS4766	Korea Telecom	1,048,576
221.144.0.0/12	AS9856	Korea Telecom	1,048,576
221.144.0.0/12	AS10184	Korea Telecom	1,048,576
221.144.0.0/12	AS55622	Korea Telecom	1,048,576
221.144.0.0/12	AS10185	Korea Telecom	1,048,576
221.144.0.0/12	AS9850	Korea Telecom	1,048,576
221.144.0.0/12	AS9526	Korea Telecom	1,048,576
221.240.0.0/12	AS17506	ARTERIA Networks Corporation	1,048,576
221.224.0.0/13	AS4134	CHINANET jiangsu province network	524,288
221.224.0.0/13	AS131325	CHINANET jiangsu province network	524,288
221.176.0.0/13	AS56048	China Mobile Communications Corporation	524,288
221.224.0.0/13	AS134770	CHINANET jiangsu province network	524,288
221.176.0.0/13	AS24445	China Mobile Communications Corporation	524,288
221.176.0.0/13	AS56042	China Mobile Communications Corporation	524,288
221.176.0.0/13	AS9808	China Mobile Communications Corporation	524,288
221.224.0.0/13	AS137697	CHINANET jiangsu province network	524,288
221.224.0.0/13	AS137702	CHINANET jiangsu province network	524,288
221.224.0.0/13	AS138950	CHINANET jiangsu province network	524,288
221.176.0.0/13	AS139080	China Mobile Communications Corporation	524,288
221.224.0.0/13	AS140292	CHINANET jiangsu province network	524,288
221.176.0.0/13	AS56040	China Mobile Communications Corporation	524,288
221.176.0.0/13	AS132510	China Mobile Communications Corporation	524,288
221.184.0.0/13	AS4713	NTT DOCOMO BUSINESS,Inc.	524,288
221.176.0.0/13	AS56044	China Mobile Communications Corporation	524,288
221.224.0.0/13	AS23650	CHINANET jiangsu province network	524,288
221.176.0.0/13	AS56046	China Mobile Communications Corporation	524,288
221.224.0.0/13	AS146966	CHINANET jiangsu province network	524,288
221.176.0.0/13	AS141425	China Mobile Communications Corporation	524,288
221.224.0.0/13	AS134756	CHINANET jiangsu province network	524,288
221.216.0.0/13	AS4808	China Unicom Beijing province network	524,288
221.224.0.0/13	AS4809	CHINANET jiangsu province network	524,288
221.200.0.0/14	AS4837	China Unicom Liaoning Province Network	262,144
221.124.0.0/14	AS9304	HGC Global Communications Limited	262,144
221.140.0.0/14	AS9318	SK Broadband Co Ltd	262,144
221.232.0.0/14	AS58563	CHINANET Hubei province network	262,144
221.232.0.0/14	AS4134	CHINANET Hubei province network	262,144
221.140.0.0/14	AS38695	SK Broadband Co Ltd	262,144

Hosted domains

There are 691 domain names hosted across 316 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	ddsooh.com	78
221.161.197.34	badaswim.org	66
221.167.210.244	dosup.com	23
221.163.201.52	udmtek-ltd.com	14
221.160.135.15	detonex.co.kr	12
221.162.94.238	naline.kr	11
221.165.185.139	kginterior-bank.kr	9
221.161.197.196	kheunsure.kr	9
221.162.37.119	park119.net	8
221.165.153.136	gahbin.com	8
221.161.136.17	busancancercenter.or.kr	7
221.161.197.197	kheun.net	7
221.167.250.54	bokakbokak.com	7
221.164.14.38	happyzibsuri.com	6
221.164.83.57	sejinintc.com	6
221.163.60.144	yuratech.kr	6
221.161.197.185	gajisan.co.kr	6
221.161.97.170	spo1.kr	6
221.167.230.72	raraland.org	5
221.165.27.251	010car.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

295,548 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
221.167.253.95	AS4766 Korea Telecom	`1.14ms` from Seoul, KR
221.167.196.217	AS4766 Korea Telecom	`1.14ms` from Seoul, KR
221.167.241.78	AS4766 Korea Telecom	`1.30ms` from Seoul, KR
221.167.215.129	AS4766 Korea Telecom	`1.28ms` from Seoul, KR
221.167.209.170	AS4766 Korea Telecom	`1.26ms` from Seoul, KR
221.167.221.5	AS4766 Korea Telecom	`1.54ms` from Seoul, KR
221.167.195.226	AS4766 Korea Telecom	`1.13ms` from Seoul, KR
221.167.200.80	AS4766 Korea Telecom	`1.25ms` from Seoul, KR
221.167.255.8	AS4766 Korea Telecom	`1.32ms` from Seoul, KR
221.167.239.254	AS4766 Korea Telecom	`1.47ms` from Seoul, KR
221.167.201.186	AS4766 Korea Telecom	`1.16ms` from Seoul, KR
221.167.247.31	AS4766 Korea Telecom	`1.40ms` from Seoul, KR
221.167.194.162	AS4766 Korea Telecom	`1.17ms` from Seoul, KR
221.167.238.31	AS4766 Korea Telecom	`1.26ms` from Seoul, KR
221.167.198.67	AS4766 Korea Telecom	`1.30ms` from Seoul, KR
221.167.231.212	AS4766 Korea Telecom	`1.43ms` from Seoul, KR
221.167.188.14	AS4766 Korea Telecom	`7.36ms` from Seoul, KR
221.167.191.217	AS4766 Korea Telecom	`7.10ms` from Seoul, KR
221.167.235.190	AS4766 Korea Telecom	`1.37ms` from Seoul, KR
221.167.246.97	AS4766 Korea Telecom	`1.30ms` from Seoul, KR
221.167.252.4	AS4766 Korea Telecom	`1.30ms` from Seoul, KR
221.167.206.187	AS4766 Korea Telecom	`1.28ms` from Seoul, KR
221.167.208.167	AS4766 Korea Telecom	`1.23ms` from Seoul, KR
221.167.249.88	AS4766 Korea Telecom	`1.15ms` from Seoul, KR
221.167.245.67	AS4766 Korea Telecom	`1.17ms` 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
99.9.219.237	AS7018 AT&T Enterprises, LLC	`6.63ms` from Atlanta, US
74.97.37.61	AS701 Verizon Business	`1.96ms` from Boston, US
113.246.207.253	AS4134 CHINANET-BACKBONE	`1.08ms` from Changsha, CN
216.201.152.205	AS11215 Logix	`0.33ms` from Dallas, US
170.12.106.221	AS27283 Raymond James Financial, Inc.	`16.65ms` from Dallas, US
154.213.78.109	AS400619 AROSSCLOUD INC.	`2.71ms` from Hong Kong, HK
42.55.50.157	AS4837 CHINA UNICOM China169 Backbone	`9.94ms` from Liaoyang, CN
45.152.94.253	AS42053 Starling Bank Limited	`0.57ms` from London, GB
86.193.240.45	AS3215 Orange S.A.	`8.83ms` from Marseille, FR
184.26.73.141	AS16625 Akamai Technologies, Inc.	`0.51ms` from Miami, US
23.201.7.13	AS16625 Akamai Technologies, Inc.	`0.12ms` from Perth, AU
148.137.133.61	AS7150 Commonwealth University of Pennsylvania	`9.27ms` from Philadelphia, US
189.253.219.13	AS8151 UNINET	`10.59ms` from Santiago de Queretaro, MX
180.227.253.189	AS17858 LG POWERCOMM	`1.78ms` from Seoul, KR
211.116.22.125	AS3786 LG DACOM Corporation	`1.57ms` from Seoul, KR
60.199.179.61	AS9924 Taiwan Fixed Network, Telco and Network Service Provider.	`0.46ms` from Taipei, TW
49.243.123.189	AS10013 FreeBit Co.,Ltd.	`8.74ms` from Tokyo, JP
126.235.196.157	AS17676 SoftBank Corp.	`2.98ms` from Tokyo, JP
150.90.38.141	AS2497 Internet Initiative Japan Inc.	`1.31ms` from Tokyo, JP
95.99.27.13	AS50266 Odido Netherlands B.V.	`5.78ms` from Amsterdam, NL
23.235.248.93	AS19437 SECURED SERVERS LLC	`0.22ms` from Ashburn, US
77.69.11.77	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`1.06ms` from Athens, GR
222.154.101.157	AS4771 Spark New Zealand Trading Ltd.	`13.84ms` from Auckland, NZ
12.76.246.205	AS7018 AT&T Enterprises, LLC	`4.96ms` from Columbus, US
85.195.29.205	AS35706 Net at Once Sweden AB	`3.89ms` from Copenhagen, DK

Traceroute

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

traceroute -a -n -q1 221.167.56.71

traceroute to 221.167.56.71 (221.167.56.71): 64 hops max, 52 byte packets

1 [AS15169] 172.253.64.138 1.142 ms

2 *

3 *

4 *

5 *

6 [AS4766] 112.174.213.10 11.492 ms

7 [AS4766] 221.167.56.71 10.408 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On November 22nd 2025

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