221.144.0.0/12
AS4766 · Korea Telecom
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| Country |
South Korea
|
| Domain | kt.com |
| ASN | AS4766 |
| Registry | APNIC |
| ID | KORNET-KR |
WHOIS Details
inetnum: 221.144.0.0 - 221.159.255.255 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: 2025-11-03T08:15:09Z 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: 221.144.0.0 - 221.159.255.255 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 221.144.0.0/12
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 221.157.127.0/24 | AS4766 | Gyeongbukgwahakdaehakgyo | 256 |
| 221.149.141.0/24 | AS10185 | (ju)hanaeunhaeng | 256 |
| 221.158.73.0/24 | AS17576 | Jaedanbeopin hangukyeongujaedan | 256 |
| 221.150.131.0/24 | AS17851 | Korea Telecom | 256 |
| 221.151.165.0/24 | AS38405 | Korea Telecom | 256 |
| 221.150.196.0/24 | AS38697 | Hangyeongdaehakgyo | 256 |
| 221.149.230.0/24 | AS45360 | SKbrodeudeu(ju) | 256 |
| 221.145.178.0/24 | AS45400 | Korea Telecom | 256 |
| 221.144.37.0/24 | AS4766 | Nambudaehakgyo | 256 |
| 221.145.224.0/24 | AS4766 | (hak)toldaehakgyodaejeonseongmobyeongwon | 256 |
| 221.146.17.0/24 | AS4766 | Sejongsaibeodaehakgyo | 256 |
| 221.147.51.0/24 | AS4766 | Seongmobyeongwon | 256 |
| 221.147.52.0/24 | AS4766 | Seongmobyeongwon | 256 |
| 221.147.53.0/24 | AS4766 | Seongmobyeongwon | 256 |
| 221.147.54.0/24 | AS4766 | Seongmobyeongwon | 256 |
| 221.147.55.0/24 | AS4766 | Seongmobyeongwon | 256 |
| 221.151.180.0/24 | AS9526 | (ju)koseu | 256 |
| 221.147.101.0/24 | AS9850 | (ju)waitibi | 256 |
| 221.153.249.0/24 | AS4766 | Dongwondaehak | 256 |
| 221.154.82.0/24 | AS4766 | Inhagongeopjeonmundaehak | 256 |
| 221.154.83.0/24 | AS4766 | Inhagongeopjeonmundaehak | 256 |
| 221.154.84.0/24 | AS4766 | Inhagongeopjeonmundaehak | 256 |
| 221.154.85.0/24 | AS4766 | Inhagongeopjeonmundaehak | 256 |
| 221.154.86.0/24 | AS4766 | Inhagongeopjeonmundaehak | 256 |
| 221.154.87.0/24 | AS4766 | Inhagongeopjeonmundaehak | 256 |
| 221.154.88.0/24 | AS4766 | Inhagongeopjeonmundaehak | 256 |
| 221.154.89.0/24 | AS4766 | Inhagongeopjeonmundaehak | 256 |
| 221.154.90.0/24 | AS4766 | Inhagongeopjeonmundaehak | 256 |
| 221.157.116.0/24 | AS4766 | Gyemyeongmunhwadaehakgyojang | 256 |
| 221.157.126.0/24 | AS4766 | Gyeongbukgwahakdaehakgyo | 256 |
| 221.150.21.0/24 | AS10184 | (sa)saemaeulgeumgoyeonhaphoe | 256 |
| 221.159.130.0/24 | AS4766 | Jeonbukdaehakgyo pyeongsaenggyoyukwon | 256 |
| 221.159.186.0/24 | AS4766 | Jeonjubijeondaehak | 256 |
| 221.159.187.0/24 | AS4766 | Jeonjubijeondaehak | 256 |
| 221.144.152.0/24 | AS55622 | Chuncheongyoyukdaehak | 256 |
| 221.159.210.0/24 | AS55622 | Chuncheongyoyukdaehak | 256 |
| 221.147.83.0/24 | AS9526 | (ju)koseu | 256 |
| 221.150.156.0/23 | AS4766 | Dongwondaehak | 512 |
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 | AS24445 | China Mobile Communications Corporation | 524,288 |
| 221.160.0.0/13 | AS4766 | Korea Telecom | 524,288 |
| 221.224.0.0/13 | AS4809 | CHINANET jiangsu province network | 524,288 |
| 221.224.0.0/13 | AS23650 | CHINANET jiangsu province network | 524,288 |
| 221.176.0.0/13 | AS9808 | China Mobile Communications Corporation | 524,288 |
| 221.216.0.0/13 | AS4808 | China Unicom Beijing province network | 524,288 |
| 221.224.0.0/13 | AS137697 | CHINANET jiangsu province network | 524,288 |
| 221.176.0.0/13 | AS139080 | China Mobile Communications Corporation | 524,288 |
| 221.224.0.0/13 | AS137702 | CHINANET jiangsu province network | 524,288 |
| 221.176.0.0/13 | AS56046 | China Mobile Communications Corporation | 524,288 |
| 221.184.0.0/13 | AS4713 | NTT DOCOMO BUSINESS,Inc. | 524,288 |
| 221.224.0.0/13 | AS146966 | CHINANET jiangsu province network | 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 |
| 221.224.0.0/13 | AS131325 | CHINANET jiangsu province network | 524,288 |
| 221.176.0.0/13 | AS56048 | China Mobile Communications Corporation | 524,288 |
| 221.224.0.0/13 | AS138950 | CHINANET jiangsu province network | 524,288 |
| 221.176.0.0/13 | AS141425 | China Mobile Communications Corporation | 524,288 |
| 221.224.0.0/13 | AS4134 | CHINANET jiangsu province network | 524,288 |
| 221.176.0.0/13 | AS132510 | China Mobile Communications Corporation | 524,288 |
| 221.176.0.0/13 | AS56044 | China Mobile Communications Corporation | 524,288 |
| 221.176.0.0/13 | AS56040 | China Mobile Communications Corporation | 524,288 |
| 221.224.0.0/13 | AS140292 | CHINANET jiangsu province network | 524,288 |
| 221.224.0.0/13 | AS134770 | CHINANET jiangsu province network | 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 |
| 221.232.0.0/14 | AS4134 | CHINANET Hubei province network | 262,144 |
| 221.200.0.0/14 | AS4837 | China Unicom Liaoning Province Network | 262,144 |
| 221.124.0.0/14 | AS9304 | HGC Global Communications Limited | 262,144 |
| 221.8.0.0/15 | AS4837 | China Unicom JILIN province network | 131,072 |
| 221.130.0.0/15 | AS9808 | China Mobile Communications Corporation | 131,072 |
| 221.170.0.0/15 | AS2518 | BIGLOBE Inc. | 131,072 |
| 221.214.0.0/15 | AS4837 | China Unicom Shandong province network | 131,072 |
| 221.204.0.0/15 | AS4837 | China Unicom Shanxi Province Network | 131,072 |
| 221.138.0.0/15 | AS9318 | SK Broadband Co Ltd | 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 |
| 221.6.0.0/16 | AS140717 | China Unicom Jiangsu province network | 65,536 |
| 221.117.0.0/16 | 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 |
| 221.116.0.0/16 | AS17506 | ARTERIA Networks Corporation | 65,536 |
| 221.213.0.0/16 | AS4837 | China Unicom Yunnan province network | 65,536 |
| 221.169.0.0/16 | AS4780 | Digital United I | 65,536 |
| 221.206.0.0/16 | AS4837 | China Unicom Heilongjiang Province Network | 65,536 |
Hosted domains
There are 1,779 domain names hosted across 851 IP addresses on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 221.153.35.130 | durimoa.kr | 131 |
| 221.156.137.137 | sktunion.com | 34 |
| 221.156.137.135 | kffiu.or.kr | 24 |
| 221.156.137.138 | katuobusi.co.kr | 14 |
| 221.146.177.180 | runjeju2024report.com | 12 |
| 221.157.125.147 | gcmarathon.co.kr | 11 |
| 221.152.146.148 | 4dayweek.kr | 10 |
| 221.146.142.41 | open2000.co.kr | 9 |
| 221.157.125.135 | finegold.kr | 7 |
| 221.150.239.81 | knna.or.kr | 7 |
| 221.148.180.40 | codel.store | 7 |
| 221.156.137.102 | jlms.or.kr | 7 |
| 221.146.140.100 | hivisiontech.co.kr | 6 |
| 221.144.57.45 | doctorpass.co.kr | 6 |
| 221.149.101.250 | hotelriviera.co.kr | 6 |
| 221.146.6.184 | golfn.me | 6 |
| 221.155.253.133 | storeview.co.kr | 6 |
| 221.148.146.134 | onceyou.kr | 5 |
| 221.146.70.208 | fonts.kr | 5 |
| 221.155.112.97 | 007masg.com | 5 |
Hosted domains API
Pingable IPs
542,145 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 221.149.102.254 |
1.66ms from Seoul,
KR
|
|
| 221.149.149.254 |
1.67ms from Seoul,
KR
|
|
| 221.149.105.101 |
1.25ms from Seoul,
KR
|
|
| 221.149.118.212 |
1.46ms from Seoul,
KR
|
|
| 221.150.56.158 |
1.50ms from Seoul,
KR
|
|
| 221.149.232.133 |
1.43ms from Seoul,
KR
|
|
| 221.150.111.76 |
1.02ms from Seoul,
KR
|
|
| 221.150.104.254 |
1.41ms from Seoul,
KR
|
|
| 221.150.98.197 |
1.09ms from Seoul,
KR
|
|
| 221.149.141.10 |
1.86ms from Seoul,
KR
|
|
| 221.149.250.174 |
1.51ms from Seoul,
KR
|
|
| 221.149.150.54 |
1.14ms from Seoul,
KR
|
|
| 221.149.121.161 |
1.04ms from Seoul,
KR
|
|
| 221.149.207.129 |
1.17ms from Seoul,
KR
|
|
| 221.149.247.98 |
1.31ms from Seoul,
KR
|
|
| 221.149.95.126 |
1.86ms from Seoul,
KR
|
|
| 221.149.119.125 |
1.30ms from Seoul,
KR
|
|
| 221.149.183.126 |
1.69ms from Seoul,
KR
|
|
| 221.149.146.1 |
2.04ms from Seoul,
KR
|
|
| 221.150.94.218 |
0.78ms from Seoul,
KR
|
|
| 221.149.83.254 |
1.27ms from Seoul,
KR
|
|
| 221.150.49.174 |
1.13ms from Seoul,
KR
|
|
| 221.150.62.1 |
1.66ms from Seoul,
KR
|
|
| 221.149.147.93 |
2.19ms from Seoul,
KR
|
|
| 221.150.50.254 |
1.50ms 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 |
|---|---|---|
| 151.245.218.188 |
0.27ms from Amsterdam,
NL
|
|
| 24.61.238.124 |
4.97ms from Boston,
US
|
|
| 73.144.109.76 |
8.25ms from Flint,
US
|
|
| 80.135.67.140 |
4.01ms from Frankfurt am Main,
DE
|
|
| 47.52.214.124 |
1.37ms from Hong Kong,
HK
|
|
| 172.118.107.140 |
5.47ms from Los Angeles,
US
|
|
| 71.197.74.60 |
10.49ms from Los Angeles,
US
|
|
| 5.40.212.140 |
7.78ms from Madrid,
ES
|
|
| 167.62.92.76 |
1.71ms from Montevideo,
UY
|
|
| 120.221.88.28 |
0.76ms from Qingdao,
CN
|
|
| 3.92.238.44 |
0.56ms from Reston,
US
|
|
| 52.21.157.252 |
0.22ms from Reston,
US
|
|
| 52.76.62.92 |
0.12ms from Singapore,
SG
|
|
| 188.234.233.252 |
12.46ms from Yekaterinburg,
RU
|
|
| 51.137.21.108 |
0.23ms from Amsterdam,
NL
|
|
| 24.125.65.108 |
4.95ms from Atlanta,
US
|
|
| 24.12.9.12 |
5.14ms from Chicago,
US
|
|
| 174.67.21.60 |
8.11ms from Dallas,
US
|
|
| 20.203.92.252 |
3.83ms from Dubai,
AE
|
|
| 93.207.214.108 |
3.04ms from Frankfurt am Main,
DE
|
|
| 118.68.54.172 |
4.11ms from Hanoi,
VN
|
|
| 103.192.178.204 |
0.49ms from Hong Kong,
HK
|
|
| 207.56.110.44 |
1.28ms from Hong Kong,
HK
|
|
| 24.28.14.156 |
10.56ms from Houston,
US
|
|
| 4.226.7.140 |
0.19ms from Kloten,
CH
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
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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