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  2. 221.0.0.0/8
  3. 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 AS38405 Korea Telecom 1,048,576
221.240.0.0/12 AS17506 ARTERIA Networks Corporation 1,048,576
221.144.0.0/12 AS9526 Korea Telecom 1,048,576
221.144.0.0/12 AS10184 Korea Telecom 1,048,576
221.144.0.0/12 AS152214 Korea Telecom 1,048,576
221.144.0.0/12 AS10185 Korea Telecom 1,048,576
221.144.0.0/12 AS45400 Korea Telecom 1,048,576
221.144.0.0/12 AS17576 Korea Telecom 1,048,576
221.144.0.0/12 AS17851 Korea Telecom 1,048,576
221.144.0.0/12 AS38697 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 AS55622 Korea Telecom 1,048,576
221.144.0.0/12 AS45360 Korea Telecom 1,048,576
221.144.0.0/12 AS9850 Korea Telecom 1,048,576
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
221.176.0.0/13 AS9808 China Mobile Communications Corporation 524,288
221.184.0.0/13 AS4713 NTT DOCOMO BUSINESS,Inc. 524,288
221.224.0.0/13 AS131325 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS134770 CHINANET jiangsu province network 524,288
221.176.0.0/13 AS56046 China Mobile Communications Corporation 524,288
221.224.0.0/13 AS138950 CHINANET jiangsu province network 524,288
221.176.0.0/13 AS56048 China Mobile Communications Corporation 524,288
221.176.0.0/13 AS132510 China Mobile Communications Corporation 524,288
221.224.0.0/13 AS134756 CHINANET jiangsu province network 524,288
221.176.0.0/13 AS56042 China Mobile Communications Corporation 524,288
221.176.0.0/13 AS56044 China Mobile Communications Corporation 524,288
221.224.0.0/13 AS4134 CHINANET jiangsu province network 524,288
221.176.0.0/13 AS56040 China Mobile Communications Corporation 524,288
221.176.0.0/13 AS24445 China Mobile Communications Corporation 524,288
221.224.0.0/13 AS23650 CHINANET jiangsu province network 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 AS146966 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 AS141425 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
221.140.0.0/14 AS131812 SK Broadband Co Ltd 262,144
221.140.0.0/14 AS16669 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

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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
221.165.38.225 AS4766 Korea Telecom 2.13ms from Seoul, KR
221.164.182.160 AS4766 Korea Telecom 6.73ms from Seoul, KR
221.164.173.185 AS4766 Korea Telecom 4.94ms from Seoul, KR
221.165.10.8 AS4766 Korea Telecom 1.47ms from Seoul, KR
221.164.170.86 AS4766 Korea Telecom 5.49ms from Seoul, KR
221.164.206.216 AS4766 Korea Telecom 6.27ms from Seoul, KR
221.164.199.219 AS4766 Korea Telecom 4.34ms from Seoul, KR
221.164.219.157 AS4766 Korea Telecom 6.83ms from Seoul, KR
221.165.26.1 AS4766 Korea Telecom 1.42ms from Seoul, KR
221.164.205.148 AS4766 Korea Telecom 4.82ms from Seoul, KR
221.165.16.197 AS4766 Korea Telecom 1.61ms from Seoul, KR
221.164.217.174 AS4766 Korea Telecom 5.73ms from Seoul, KR
221.165.14.138 AS4766 Korea Telecom 1.48ms from Seoul, KR
221.165.45.56 AS4766 Korea Telecom 1.44ms from Seoul, KR
221.164.245.24 AS4766 Korea Telecom 6.75ms from Seoul, KR
221.164.248.54 AS4766 Korea Telecom 6.25ms from Seoul, KR
221.164.177.169 AS4766 Korea Telecom 4.66ms from Seoul, KR
221.164.233.143 AS4766 Korea Telecom 5.95ms from Seoul, KR
221.164.174.143 AS4766 Korea Telecom 4.26ms from Seoul, KR
221.165.56.92 AS4766 Korea Telecom 1.62ms from Seoul, KR
221.164.244.190 AS4766 Korea Telecom 6.43ms from Seoul, KR
221.165.27.145 AS4766 Korea Telecom 1.20ms from Seoul, KR
221.164.176.58 AS4766 Korea Telecom 4.65ms from Seoul, KR
221.165.57.163 AS4766 Korea Telecom 1.33ms from Seoul, KR
221.164.213.157 AS4766 Korea Telecom 4.86ms 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
209.193.54.93 AS7782 Alaska Communications Systems Group, Inc. 6.20ms from Anchorage, US
116.110.173.205 AS24086 Viettel Corporation 13.53ms from Ho Chi Minh City, VN
156.226.53.109 AS135097 LUOGELANG (FRANCE) LIMITED 1.01ms from Hong Kong, HK
45.152.94.253 AS42053 Starling Bank Limited 0.57ms from London, GB
77.44.44.29 AS5413 Wavenet Limited 3.04ms from London, GB
202.90.135.77 AS9821 Department of Science and Technology 16.04ms from Manila, PH
190.218.166.125 AS18809 Cable Onda 8.62ms from Panama, PA
86.196.253.109 AS3215 Orange S.A. 7.91ms from Paris, FR
45.164.147.253 AS268631 IBT TELECOM 1.25ms from Sao Paulo, BR
49.171.79.45 AS17858 LG POWERCOMM 1.93ms from Seoul, KR
211.224.147.237 AS4766 Korea Telecom 4.93ms from Seoul, KR
115.17.220.237 AS4766 Korea Telecom 6.88ms from Seoul, KR
222.106.241.45 AS4766 Korea Telecom 1.26ms from Seoul, KR
92.247.75.45 AS48917 Optinet Ltd 6.49ms from Sofia, BG
116.240.57.221 AS9443 Vocus Retail 2.62ms from Sydney, AU
178.189.194.93 AS8447 A1 Telekom Austria AG 1.26ms from Vienna, AT
171.42.54.237 AS4134 CHINANET-BACKBONE 5.87ms from Wuhan, CN
5.38.250.61 AS5483 Magyar Telekom Plc. 0.81ms from Budapest, HU
3.19.209.173 AS16509 Amazon.com, Inc. 1.00ms from Columbus, US
35.198.85.61 AS396982 Google LLC 0.10ms from Frankfurt am Main, DE
206.119.98.141 AS140224 Nebula Global LLC 0.98ms from Hong Kong, HK
121.122.7.189 AS9534 Binariang Berhad 3.87ms from Kuala Lumpur, MY
95.251.138.125 AS3269 Telecom Italia S.p.A. 3.49ms from Milan, IT
34.6.202.237 AS396982 Google LLC 0.15ms from Oudeschip, NL
179.250.18.237 AS26615 TIM S/A 2.64ms from Sao Paulo, BR

Traceroute

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

$
traceroute -a -n -q1 221.162.152.1
traceroute to 221.162.152.1 (221.162.152.1): 64 hops max, 52 byte packets
1 [AS31898] 140.91.214.3 0.067 ms
3 *
4 *
5 *
6 *
7 [AS4766] 221.162.152.1 6.446 ms
Measurement taken from IPinfo ProbeNet in Seoul, KR
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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