1. All IP Ranges
  2. 221.0.0.0/8
  3. AS4766  | 221.144.0.0/12

221.144.0.0/12

AS4766  ·  Korea Telecom

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Summary

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

WHOIS Details

inetnum:        221.144.0.0 - 221.168.255.255
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
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

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

Nearby Ranges

BGP prefixes that overlap with 221.0.0.0/8

Range ASN Company Num of IPs
221.240.0.0/12 AS17506 ARTERIA Networks Corporation 1,048,576
221.176.0.0/13 AS9808 China Mobile Communications Corporation 524,288
221.176.0.0/13 AS56040 China Mobile Communications Corporation 524,288
221.224.0.0/13 AS146966 CHINANET jiangsu province network 524,288
221.176.0.0/13 AS56046 China Mobile Communications Corporation 524,288
221.216.0.0/13 AS4808 China Unicom Beijing province network 524,288
221.224.0.0/13 AS134756 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS138950 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS134770 CHINANET jiangsu province network 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 AS4809 CHINANET jiangsu province network 524,288
221.176.0.0/13 AS139080 China Mobile Communications Corporation 524,288
221.176.0.0/13 AS132510 China Mobile Communications Corporation 524,288
221.176.0.0/13 AS24445 China Mobile Communications Corporation 524,288
221.224.0.0/13 AS140292 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS23650 CHINANET jiangsu province network 524,288
221.176.0.0/13 AS56048 China Mobile Communications Corporation 524,288
221.224.0.0/13 AS4134 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS137702 CHINANET jiangsu province network 524,288
221.224.0.0/13 AS131325 CHINANET jiangsu province network 524,288
221.176.0.0/13 AS56042 China Mobile Communications Corporation 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
221.232.0.0/14 AS4134 CHINANET Hubei province network 262,144
221.200.0.0/14 AS4837 China Unicom Liaoning Province Network 262,144
221.232.0.0/14 AS58563 CHINANET Hubei province network 262,144
221.124.0.0/14 AS9304 HGC Global Communications Limited 262,144
221.130.0.0/15 AS56041 China Mobile Communications Corporation 131,072
221.130.0.0/15 AS56042 China Mobile Communications Corporation 131,072
221.214.0.0/15 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
221.8.0.0/15 AS4837 China Unicom JILIN province network 131,072
221.170.0.0/15 AS2518 BIGLOBE Inc. 131,072
221.213.0.0/16 AS4837 China Unicom Yunnan province network 65,536
221.6.0.0/16 AS140717 China Unicom Jiangsu province network 65,536
221.129.0.0/16 AS23841 TIANJIN BROADCAST & TV NETWORK CO. LTD 65,536
221.137.0.0/16 AS9812 Oriental Cable Network Co., Ltd. 65,536
221.10.0.0/16 AS4837 China Unicom SiChuan province network 65,536
221.169.0.0/16 AS4780 Digital United I 65,536
221.119.0.0/16 AS2516 KDDI CORPORATION 65,536
221.206.0.0/16 AS4837 China Unicom Heilongjiang Province Network 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
221.116.0.0/16 AS17506 ARTERIA Networks Corporation 65,536
221.115.0.0/16 AS17506 ARTERIA Networks Corporation 65,536
221.114.0.0/16 AS17506 ARTERIA Networks Corporation 65,536
221.112.0.0/16 AS17506 ARTERIA Networks Corporation 65,536
221.113.128.0/17 AS4713 NTT DOCOMO BUSINESS,Inc. 32,768

Hosted domains

There are 2,335 domain names hosted across 826 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
221.148.143.109 xn--vb0bn4euyhn6jt5z.com 704
221.147.192.243 hshanu.or.kr 30
221.148.193.72 congzip.com 27
221.156.137.135 serviceace.or.kr 24
221.150.86.1 ksca.or.kr 18
221.144.12.64 gunmaya.kr 15
221.156.137.138 kimtaehwan.org 14
221.150.76.99 suntronix.com 13
221.150.239.83 chavaccine.com 12
221.147.192.205 i2corp.co.kr 11
221.144.86.1 xn--9d0bk7dp8bi6pqtgsrhq8bg68bo5b.kr 9
221.148.3.234 in4az.com 9
221.146.142.41 flag.co.kr 9
221.155.253.133 smartfarmlabs.com 8
221.149.135.231 igbt.kr 7
221.151.187.148 noda.co.kr 7
221.148.180.40 hyeyum.store 7
221.146.140.100 biznetkorea.com 6
221.149.71.17 heoneo.com 6
221.158.107.100 kgcpr.or.kr 6

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

531,519 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
221.155.44.126 AS4766 Korea Telecom 1.96ms from Seoul, KR
221.155.164.4 AS4766 Korea Telecom 1.95ms from Seoul, KR
221.155.216.142 AS4766 Korea Telecom 1.17ms from Seoul, KR
221.155.58.11 AS4766 Korea Telecom 1.66ms from Seoul, KR
221.155.147.190 AS4766 Korea Telecom 1.55ms from Seoul, KR
221.155.125.132 AS4766 Korea Telecom 2.01ms from Seoul, KR
221.155.7.113 AS4766 Korea Telecom 1.67ms from Seoul, KR
221.155.67.215 AS4766 Korea Telecom 2.08ms from Seoul, KR
221.155.252.225 AS4766 Korea Telecom 1.36ms from Seoul, KR
221.155.174.145 AS4766 Korea Telecom 1.47ms from Seoul, KR
221.155.190.129 AS4766 Korea Telecom 1.65ms from Seoul, KR
221.155.87.81 AS4766 Korea Telecom 1.77ms from Seoul, KR
221.155.55.53 AS4766 Korea Telecom 1.57ms from Seoul, KR
221.155.89.35 AS4766 Korea Telecom 1.56ms from Seoul, KR
221.155.121.254 AS4766 Korea Telecom 1.92ms from Seoul, KR
221.155.195.74 AS4766 Korea Telecom 1.49ms from Seoul, KR
221.155.52.53 AS4766 Korea Telecom 1.53ms from Seoul, KR
221.155.146.110 AS4766 Korea Telecom 1.66ms from Seoul, KR
221.155.19.225 AS4766 Korea Telecom 1.55ms from Seoul, KR
221.155.57.186 AS4766 Korea Telecom 1.69ms from Seoul, KR
221.155.56.172 AS4766 Korea Telecom 1.59ms from Seoul, KR
221.155.189.254 AS4766 Korea Telecom 1.69ms from Seoul, KR
221.155.80.211 AS4766 Korea Telecom 2.83ms from Seoul, KR
221.155.215.205 AS4766 Korea Telecom 1.36ms from Seoul, KR
221.155.26.174 AS4766 Korea Telecom 1.58ms 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
74.249.37.12 AS8075 Microsoft Corporation 0.77ms from Boydton, US
34.44.50.204 AS396982 Google LLC 0.12ms from Council Bluffs, US
35.225.53.204 AS396982 Google LLC 0.13ms from Council Bluffs, US
37.50.148.252 AS3320 Deutsche Telekom AG 2.55ms from Duesseldorf, DE
24.167.16.140 AS11427 Charter Communications Inc 11.36ms from Houston, US
86.137.11.108 AS2856 British Telecommunications PLC 1.92ms from London, GB
41.97.113.156 AS36947 Telecom Algeria 14.14ms from Madrid, ES
88.125.175.124 AS12322 Free SAS 2.30ms from Paris, FR
54.211.55.92 AS14618 Amazon.com, Inc. 0.13ms from Reston, US
149.28.202.28 AS20473 The Constant Company, LLC 0.15ms from San Jose, US
187.122.27.236 AS28573 Claro NXT Telecomunicacoes Ltda 5.24ms from Sao Paulo, BR
119.64.34.220 AS17858 LG POWERCOMM 1.42ms from Seoul, KR
4.206.49.108 AS8075 Microsoft Corporation 0.17ms from Toronto, CA
64.58.113.92 AS7979 Servers.com, Inc. 0.30ms from Dallas, US
173.195.132.252 AS393397 Lake Region Electric Cooperative, Inc 6.42ms from Kansas City, US
189.138.133.92 AS8151 UNINET 2.30ms from Mexico City, MX
151.16.53.172 AS1267 WIND TRE S.P.A. 11.78ms from Milan, IT
34.95.41.172 AS396982 Google LLC 0.09ms from Montreal, CA
46.146.123.252 AS12768 JSC "ER-Telecom Holding" 16.21ms from Moscow, RU
177.203.198.204 AS8167 V tal 3.84ms from Novo Hamburgo, BR
60.150.189.188 AS17676 SoftBank Corp. 4.23ms from Osaka, JP
125.205.215.12 AS4713 NTT DOCOMO BUSINESS,Inc. 7.20ms from Osaka, JP
178.19.243.92 AS47236 CityLink Ltd 7.44ms from Saint Petersburg, RU
131.226.216.204 AS12213 Centersquare 0.53ms from San Jose, US
45.113.162.172 AS138195 MOACK.Co.LTD 0.86ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 -f4 221.152.151.202
traceroute to 221.152.151.202 (221.152.151.202): 64 hops max, 52 byte packets
4 [AS3356] 8.243.191.133 3.668 ms
5 *
6 [AS3356] 4.68.37.206 134.431 ms
7 [AS4766] 112.174.87.241 260.768 ms
8 [AS4766] 112.174.91.213 255.025 ms
9 *
10 *
11 [AS4766] 112.174.180.50 262.142 ms
12 [AS4766] 221.152.151.202 254.74 ms
Measurement taken from IPinfo ProbeNet in Santiago, CL
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.

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