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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 AS18333 Korea Telecom 2,097,152
121.128.0.0/11 AS9856 Korea Telecom 2,097,152
121.128.0.0/11 AS9647 Korea Telecom 2,097,152
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 AS38122 Korea Telecom 2,097,152
121.224.0.0/12 AS140292 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 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 AS137697 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS146966 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 AS134756 CHINANET jiangsu province network 1,048,576
121.208.0.0/12 AS1221 Telstra Limited 1,048,576
121.8.0.0/13 AS135089 CHINANET Guangdong province network 524,288
121.16.0.0/13 AS4837 China Unicom Hebei province network 524,288
121.8.0.0/13 AS136199 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
121.112.0.0/13 AS4713 NTT DOCOMO BUSINESS,Inc. 524,288
121.64.0.0/14 AS17598 LG DACOM Corporation 262,144
121.60.0.0/14 AS4134 CHINANET Hubei province network 262,144
121.64.0.0/14 AS3786 LG DACOM Corporation 262,144
121.204.0.0/14 AS4134 CHINANET Fujian province network 262,144
121.60.0.0/14 AS148981 CHINANET Hubei province network 262,144
121.40.0.0/14 AS37963 Aliyun Computing Co., LTD 262,144
121.196.0.0/14 AS37963 Aliyun Computing Co., LTD 262,144
121.32.0.0/14 AS4134 CHINANET Guangdong province network 262,144
121.24.0.0/14 AS4837 China Unicom Hebei province network 262,144
121.64.0.0/14 AS17586 LG DACOM Corporation 262,144
121.248.0.0/14 AS4538 China Education and Research Network 262,144
121.84.0.0/14 AS17511 OPTAGE Inc. 262,144
121.80.0.0/14 AS17511 OPTAGE Inc. 262,144
121.204.0.0/14 AS133775 CHINANET Fujian province network 262,144
121.64.0.0/14 AS23555 LG DACOM Corporation 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
121.76.0.0/15 AS9812 Oriental Cable Network Co., Ltd. 131,072
121.48.0.0/15 AS4538 China Education and Research Network 131,072
121.44.0.0/15 AS7545 iiNet Limited 131,072
121.28.0.0/15 AS4837 China Unicom Hebei province network 131,072
121.4.0.0/15 AS132203 Tencent cloud computing (Beijing) Co., Ltd. 131,072
121.202.0.0/15 AS17924 SmarTone Mobile Communications Ltd 131,072
121.194.0.0/15 AS4538 China Education and Research Network 131,072
121.124.0.0/15 AS9318 SK Broadband Co Ltd 131,072
121.56.0.0/15 AS4134 CHINANET neimeng province network 131,072

Hosted domains

There are 3,866 domain names hosted across 1,649 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
121.172.144.231 djboxcall.co.kr 428
121.189.57.82 warning.or.kr 202
121.169.120.42 ever-green.kr 51
121.184.62.3 ensolbiotech.co.kr 25
121.190.120.126 pmsc.kr 24
121.182.26.3 gaeunch.or.kr 18
121.171.102.92 consol.co.kr 18
121.178.95.235 hankukcar.co.kr 16
121.160.50.100 irefer.co.kr 12
121.164.248.237 suncork.co.kr 11
121.160.50.70 gicancer.co.kr 11
121.189.15.228 insuladd.co.kr 11
121.188.36.69 kdbis.com 10
121.189.14.145 artistree.or.kr 9
121.179.208.240 theoceanresort.kr 8
121.189.59.242 luock.cn 6
121.162.71.50 alloflife.com 6
121.184.223.12 jbcorporation.co.kr 6
121.170.228.16 yg1.kr 6
121.161.227.155 trr.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

1,193,303 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
121.161.237.185 AS4766 Korea Telecom 1.62ms from Seoul, KR
121.162.4.30 AS4766 Korea Telecom 1.48ms from Seoul, KR
121.162.1.242 AS4766 Korea Telecom 1.32ms from Seoul, KR
121.161.113.32 AS4766 Korea Telecom 2.19ms from Seoul, KR
121.161.140.170 AS4766 Korea Telecom 1.63ms from Seoul, KR
121.161.246.113 AS4766 Korea Telecom 1.56ms from Seoul, KR
121.161.241.214 AS4766 Korea Telecom 1.06ms from Seoul, KR
121.162.17.100 AS4766 Korea Telecom 1.29ms from Seoul, KR
121.161.100.49 AS4766 Korea Telecom 1.94ms from Seoul, KR
121.162.13.102 AS4766 Korea Telecom 1.24ms from Seoul, KR
121.161.186.216 AS4766 Korea Telecom 1.77ms from Seoul, KR
121.161.131.254 AS4766 Korea Telecom 1.64ms from Seoul, KR
121.161.191.170 AS4766 Korea Telecom 1.61ms from Seoul, KR
121.161.235.37 AS4766 Korea Telecom 1.02ms from Seoul, KR
121.161.154.230 AS4766 Korea Telecom 1.03ms from Seoul, KR
121.161.220.65 AS4766 Korea Telecom 1.46ms from Seoul, KR
121.161.144.254 AS4766 Korea Telecom 1.70ms from Seoul, KR
121.161.110.130 AS4766 Korea Telecom 1.91ms from Seoul, KR
121.162.7.211 AS4766 Korea Telecom 1.13ms from Seoul, KR
121.161.117.227 AS4766 Korea Telecom 2.11ms from Seoul, KR
121.161.116.79 AS4766 Korea Telecom 1.72ms from Seoul, KR
121.161.109.91 AS4766 Korea Telecom 2.22ms from Seoul, KR
121.161.147.137 AS4766 Korea Telecom 1.33ms from Seoul, KR
121.161.203.163 AS4766 Korea Telecom 1.56ms from Seoul, KR
121.161.162.29 AS4766 Korea Telecom 1.26ms 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
94.56.197.155 AS5384 Emirates Internet 4.63ms from Al Fujairah City, AE
132.220.150.75 AS8075 Microsoft Corporation 0.29ms from Amsterdam, NL
184.82.106.75 AS133481 AIS Fibre 2.28ms from Bangkok, TH
67.0.255.155 AS209 CenturyLink Communications, LLC 14.26ms from Denver, US
134.175.168.155 AS45090 Shenzhen Tencent Computer Systems Company Limited 2.17ms from Guangzhou, CN
86.14.237.155 AS5089 Virgin Media Limited 10.50ms from London, GB
76.87.73.171 AS20001 Charter Communications Inc 4.91ms from Los Angeles, US
3.110.110.139 AS16509 Amazon.com, Inc. 0.29ms from Mumbai, IN
223.83.40.11 AS56045 China Mobile communications corporation 6.00ms from Nanchang, CN
72.80.25.75 AS701 Verizon Business 2.26ms from New York City, US
46.218.195.203 AS15557 Societe Francaise Du Radiotelephone - SFR SA 1.64ms from Paris, FR
73.254.23.107 AS7922 Comcast Cable Communications, LLC 7.95ms from Seattle, US
120.97.23.107 AS1659 Taiwan Academic Network (TANet) Information Center 1.76ms from Taipei, TW
126.110.41.235 AS17676 SoftBank Corp. 9.23ms from Tokyo, JP
223.134.69.251 AS2527 Sony Network Communications Inc. 3.83ms from Tokyo, JP
141.237.75.219 AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA 4.24ms from Athens, GR
172.14.157.59 AS7018 AT&T Enterprises, LLC 6.70ms from Atlanta, US
74.33.86.219 AS5650 Frontier Communications of America, Inc. 9.87ms from Chicago, US
13.32.70.27 AS16509 Amazon.com, Inc. 0.21ms from Dallas, US
103.158.199.27 AS137978 CDS and Clearing Ltd 18.63ms from Delhi, IN
62.224.83.203 AS3320 Deutsche Telekom AG 4.52ms from Frankfurt am Main, DE
178.187.114.43 AS12389 PJSC Rostelecom 5.39ms from Novosibirsk, RU
121.81.67.203 AS17511 OPTAGE Inc. 3.27ms from Osaka, JP
190.215.186.11 AS18822 Manquehuenet 2.69ms from Santiago, CL
175.255.134.123 AS4766 Korea Telecom 1.80ms 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 -f5 121.189.124.78
traceroute to 121.189.124.78 (121.189.124.78): 64 hops max, 52 byte packets
5 [AS4766] 112.174.56.186 12.193 ms
6 *
7 *
8 [AS4766] 121.189.124.78 13.831 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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