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  2. 121.0.0.0/8
  3. AS4766  | 121.160.0.0/11

121.160.0.0/11

AS4766  ·  Korea Telecom

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Summary

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

WHOIS Details

inetnum:        121.160.0.0 - 121.191.255.255
netname:        KORNET
descr:          Korea Telecom
admin-c:        IM667-AP
tech-c:         IM667-AP
country:        KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
changed:        [email protected] 20170203
source:         APNIC

irt:            IRT-KRNIC-KR
address:        Seoul Songpa-gu Jungdae-ro 135
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
mnt-by:         MNT-KRNIC-AP
changed:        [email protected] 20150513
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
changed:        [email protected] 20170328
source:         APNIC

inetnum:        121.160.0.0 - 121.191.255.255
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.krnic.net.
changed:        [email protected]
source:         KRNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        
country:        KR
phone:          +82-2-500-6630
e-mail:         [email protected]
nic-hdl:        IA9-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected]
source:         KRNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        
country:        KR
phone:          +82-2-500-6630
e-mail:         [email protected]
nic-hdl:        IM9-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected]
source:         KRNIC

Overlapping Ranges

BGP prefixes that are contained by 121.160.0.0/11

Range ASN Company Num of IPs
121.162.108.0/24 AS9843 (ju)nonghyeopjeongbosiseu 256
121.162.154.0/24 AS17859 Naiseupyeonggajeongbo jusikhoesa 256
121.162.155.0/24 AS17859 Naiseupyeonggajeongbo jusikhoesa 256
121.174.96.0/24 AS9708 Bugyeongdaehakgyo 256
121.164.116.0/24 AS9778 Daejindaehakgyo 256
121.169.210.0/24 AS10167 Korea Telecom 256
121.190.174.0/24 AS3786 Eseuaitissi jusikhoesa 256
121.175.28.0/24 AS38087 Korea Telecom 256
121.172.146.0/24 AS38093 Korea Telecom 256
121.190.250.0/24 AS38391 Korea Telecom 256
121.163.255.0/24 AS38392 Gyeonggidoyangpyeonggyoyukjiwoncheong 256
121.190.251.0/24 AS38404 Korea Telecom 256
121.163.204.0/24 AS38415 Gyeonggidogurinamyangjugyoyukjiwoncheong 256
121.177.31.0/24 AS38427 (ju)poseu 256
121.163.173.0/24 AS38431 KT 256
121.163.175.0/24 AS38431 KT 256
121.181.196.0/24 AS38696 KT 256
121.190.208.0/24 AS45399 Hanjinjeongbotongsin(ju) 256
121.190.209.0/24 AS45399 Hanjinjeongbotongsin(ju) 256
121.160.57.0/24 AS4766 Seoulyeojaganhodaehak 256
121.160.64.0/24 AS4766 Korea Telecom 256
121.160.65.0/24 AS4766 Korea Telecom 256
121.160.66.0/24 AS4766 Korea Telecom 256
121.160.67.0/24 AS4766 Korea Telecom 256
121.176.133.0/24 AS4766 Chunhaebogeondaehakgyo 256
121.176.134.0/24 AS4766 Chunhaebogeondaehakgyo 256
121.186.148.0/24 AS4766 Useokdaehakgyo 256
121.191.149.0/24 AS4766 Jungwondaehakgyo 256
121.191.150.0/24 AS4766 Jungwondaehakgyo 256
121.191.151.0/24 AS4766 Jungwondaehakgyo 256
121.191.152.0/24 AS4766 Jungwondaehakgyo 256
121.191.166.0/24 AS4766 Chungbukbonbujang 256
121.187.23.0/24 AS55615 (ju)deojonbijeuon 256
121.189.167.0/24 AS55622 Chuncheongyoyukdaehak 256
121.170.142.0/24 AS9530 (ju) sinsegyeaissi 256
121.170.176.0/24 AS9530 (ju) sinsegyeaissi 256
121.170.177.0/24 AS9530 (ju) sinsegyeaissi 256
121.170.178.0/24 AS9530 (ju) sinsegyeaissi 256
121.170.179.0/24 AS9530 (ju) sinsegyeaissi 256
121.171.150.0/24 AS9530 (ju) sinsegyeaissi 256
121.160.71.0/24 AS9647 Korea Telecom 256
121.168.9.0/24 AS9684 Hanhwaeseussi(ju) 256
121.174.50.0/24 AS9708 Bugyeongdaehakgyo 256
121.187.84.0/23 AS17862 Gangwondaehakgyojeonjagyesanso 512
121.187.80.0/22 AS17862 Chuncheongyoyukdaehak 1,024
121.187.64.0/20 AS17862 Gangwondaehakgyojeonjagyesanso 4,096

Nearby Ranges

BGP prefixes that overlap with 121.0.0.0/8

Range ASN Company Num of IPs
121.128.0.0/11 AS17588 Korea Telecom 2,097,152
121.128.0.0/11 AS4766 Korea Telecom 2,097,152
121.128.0.0/11 AS9856 Korea Telecom 2,097,152
121.128.0.0/11 AS18333 Korea Telecom 2,097,152
121.128.0.0/11 AS9647 Korea Telecom 2,097,152
121.128.0.0/11 AS38122 Korea Telecom 2,097,152
121.224.0.0/12 AS140292 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS134756 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS137702 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS137699 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS134770 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS4134 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS137697 CHINANET jiangsu province network 1,048,576
121.208.0.0/12 AS1221 Telstra Limited 1,048,576
121.224.0.0/12 AS146966 CHINANET jiangsu province network 1,048,576
121.8.0.0/13 AS135089 CHINANET Guangdong province network 524,288
121.8.0.0/13 AS4134 CHINANET Guangdong province network 524,288
121.8.0.0/13 AS140308 CHINANET Guangdong province network 524,288
121.8.0.0/13 AS136199 CHINANET Guangdong province network 524,288
121.16.0.0/13 AS4837 China Unicom Hebei province network 524,288
121.112.0.0/13 AS4713 NTT DOCOMO BUSINESS,Inc. 524,288
121.24.0.0/14 AS4837 China Unicom Hebei province network 262,144
121.64.0.0/14 AS3786 LG DACOM Corporation 262,144
121.64.0.0/14 AS23555 LG DACOM Corporation 262,144
121.64.0.0/14 AS17598 LG DACOM Corporation 262,144
121.64.0.0/14 AS17586 LG DACOM Corporation 262,144
121.60.0.0/14 AS4134 CHINANET Hubei province network 262,144
121.248.0.0/14 AS4538 China Education and Research Network 262,144
121.80.0.0/14 AS17511 OPTAGE Inc. 262,144
121.204.0.0/14 AS133775 CHINANET Fujian province network 262,144
121.204.0.0/14 AS4134 CHINANET Fujian province network 262,144
121.32.0.0/14 AS4134 CHINANET Guangdong province network 262,144
121.84.0.0/14 AS17511 OPTAGE Inc. 262,144
121.40.0.0/14 AS37963 Aliyun Computing Co., LTD 262,144
121.60.0.0/14 AS148981 CHINANET Hubei province network 262,144
121.196.0.0/14 AS37963 Aliyun Computing Co., LTD 262,144
121.204.0.0/14 AS133774 CHINANET Fujian province network 262,144
121.204.0.0/14 AS133776 CHINANET Fujian province network 262,144
121.4.0.0/15 AS45090 Tencent cloud computing (Beijing) Co., Ltd. 131,072
121.44.0.0/15 AS4739 iiNet Limited 131,072
121.76.0.0/15 AS9812 Oriental Cable Network Co., Ltd. 131,072
121.202.0.0/15 AS17924 SmarTone Mobile Communications Ltd 131,072
121.2.0.0/15 AS2527 Sony Network Communications Inc. 131,072
121.4.0.0/15 AS132203 Tencent cloud computing (Beijing) Co., Ltd. 131,072
121.124.0.0/15 AS9318 SK Broadband Co Ltd 131,072
121.48.0.0/15 AS4538 China Education and Research Network 131,072
121.56.0.0/15 AS4134 CHINANET neimeng province network 131,072

Hosted domains

There are 3,859 domain names hosted across 1,645 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
121.172.144.215 itpage.kr 80
121.164.248.236 100sky.co.kr 28
121.184.62.3 ensolbiotek.co.kr 25
121.182.26.3 pskorea.net 18
121.163.212.198 xn--3ris-ei4p614cmgpx6m11z30f.com 17
121.189.24.10 jaseng.co.kr 14
121.189.61.136 hksulbi.com 11
121.160.50.70 kbsmc.com 11
121.189.15.228 jhinc.net 11
121.190.174.236 lgis.biz 10
121.188.36.69 hdcs.co.kr 10
121.188.118.135 0431.kr 9
121.179.177.210 stoneboxing.com 7
121.170.187.147 sungjutex.co.kr 7
121.166.179.87 our-heritage.net 6
121.189.59.242 light-el.com 6
121.170.228.16 yg1.kr 6
121.189.58.240 blognawa.com 6
121.188.164.218 7947.co.kr 5
121.173.20.22 royalx.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

1,204,326 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
121.191.238.21 AS4766 Korea Telecom 3.86ms from Seoul, KR
121.191.250.97 AS4766 Korea Telecom 3.03ms from Seoul, KR
121.191.193.1 AS4766 Korea Telecom 3.03ms from Seoul, KR
121.191.209.237 AS4766 Korea Telecom 3.45ms from Seoul, KR
121.191.236.22 AS4766 Korea Telecom 3.27ms from Seoul, KR
121.191.223.1 AS4766 Korea Telecom 3.22ms from Seoul, KR
121.191.187.129 AS4766 Korea Telecom 3.10ms from Seoul, KR
121.191.243.1 AS4766 Korea Telecom 3.35ms from Seoul, KR
121.191.216.254 AS4766 Korea Telecom 3.29ms from Seoul, KR
121.191.227.94 AS4766 Korea Telecom 3.60ms from Seoul, KR
121.191.246.33 AS4766 Korea Telecom 3.68ms from Seoul, KR
121.191.222.249 AS4766 Korea Telecom 4.23ms from Seoul, KR
121.191.254.129 AS4766 Korea Telecom 3.60ms from Seoul, KR
121.191.198.1 AS4766 Korea Telecom 3.28ms from Seoul, KR
121.191.186.104 AS4766 Korea Telecom 3.34ms from Seoul, KR
121.191.245.97 AS4766 Korea Telecom 3.44ms from Seoul, KR
121.191.188.122 AS4766 Korea Telecom 5.76ms from Seoul, KR
121.191.225.153 AS4766 Korea Telecom 3.28ms from Seoul, KR
121.191.240.193 AS4766 Korea Telecom 3.77ms from Seoul, KR
121.191.251.33 AS4766 Korea Telecom 3.11ms from Seoul, KR
121.191.204.161 AS4766 Korea Telecom 2.82ms from Seoul, KR
121.191.211.1 AS4766 Korea Telecom 3.50ms from Seoul, KR
121.191.210.110 AS4766 Korea Telecom 4.22ms from Seoul, KR
121.191.224.225 AS4766 Korea Telecom 3.31ms from Seoul, KR
121.191.214.51 AS4766 Korea Telecom 3.30ms 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
89.37.124.107 AS39737 Prime Telecom srl 0.19ms from Bucharest, RO
120.196.30.251 AS9808 China Mobile Communications Group Co., Ltd. 5.35ms from Guangzhou, CN
91.195.245.11 AS204552 POPILNYA.NET LLC 1.83ms from Kyiv, UA
90.194.99.139 AS5607 Sky UK Limited 0.89ms from London, GB
99.114.91.123 AS7018 AT&T Enterprises, LLC 2.69ms from Miami, US
103.66.235.123 AS134014 NET 4 U SERVICES PVT LTD 1.00ms from Mumbai, IN
89.248.209.251 AS213668 MINDBAZ SAS 0.66ms from Paris, FR
179.165.171.27 AS26599 TELEFÔNICA BRASIL S.A 8.44ms from Rio de Janeiro, BR
169.211.161.91 AS4766 Korea Telecom 1.42ms from Seoul, KR
218.149.159.251 AS4766 Korea Telecom 9.88ms from Seoul, KR
43.212.214.203 AS16509 Amazon.com, Inc. 0.21ms from Taipei, TW
108.142.52.155 AS8075 Microsoft Corporation 0.24ms from Amsterdam, NL
24.115.35.123 AS3737 PenTeleData Inc. 15.32ms from Ashburn, US
162.206.232.107 AS7018 AT&T Enterprises, LLC 4.41ms from Atlanta, US
16.146.98.107 AS16509 Amazon.com, Inc. 0.14ms from Boardman, US
34.246.84.203 AS16509 Amazon.com, Inc. 0.12ms from Dublin, IE
183.56.227.251 AS135089 China Telecom 2.59ms from Guangzhou, CN
117.2.209.59 AS7552 Viettel Group 9.96ms from Ho Chi Minh City, VN
37.11.238.91 AS12479 Orange Espagne SA 8.27ms from Madrid, ES
88.11.167.251 AS3352 TELEFONICA DE ESPANA S.A.U. 8.84ms from Madrid, ES
201.232.16.43 AS13489 UNE EPM TELECOMUNICACIONES S.A. 2.17ms from Medellin, CO
65.1.95.11 AS16509 Amazon.com, Inc. 0.36ms from Mumbai, IN
89.85.23.235 AS5410 Bouygues Telecom SA 6.68ms from Paris, FR
100.29.65.123 AS14618 Amazon.com, Inc. 0.22ms from Reston, US
31.27.22.107 AS30722 Vodafone Italia S.p.A. 2.33ms from Rome, IT

Traceroute

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

$
traceroute -a -n -q1 121.181.106.147
traceroute to 121.181.106.147 (121.181.106.147): 64 hops max, 52 byte packets
2 *
3 *
4 *
5 *
6 [AS4766] 112.191.45.46 9.024 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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