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  2. 121.0.0.0/8
  3. AS4766  | 121.136.0.0/13

121.136.0.0/13

AS4766  ·  Korea Telecom

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Summary

Country South Korea
Domain kt.com
ASN AS4766
Parent Range 121.128.0.0/11
Registry APNIC
ID KORNET

WHOIS Details

inetnum:        121.128.0.0 - 121.159.255.255
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:        121.128.0.0 - 121.159.255.255
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.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 contain 121.136.0.0/13

Range ASN Company Num of IPs
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 AS38122 Korea Telecom 2,097,152
121.128.0.0/11 AS4766 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

BGP prefixes that are contained by 121.136.0.0/13

Range ASN Company Num of IPs
121.141.229.0/24 AS9526 (ju)koseu 256
121.141.60.0/24 AS9526 (ju)koseu 256
121.140.97.0/24 AS9530 (ju) sinsegyeaissi 256
121.139.137.0/24 AS3786 Eseuaitissi jusikhoesa 256
121.141.101.0/24 AS9776 (ju)ibigukmindeu 256
121.137.151.0/24 AS4766 Bindaehakgyo 256
121.137.185.0/24 AS4766 Hangyeongdaehakgyo 256
121.140.76.0/24 AS9524 Korea Telecom 256

Nearby Ranges

BGP prefixes that overlap with 121.0.0.0/8

Range ASN Company Num of IPs
121.128.0.0/11 AS38122 Korea Telecom 2,097,152
121.128.0.0/11 AS17588 Korea Telecom 2,097,152
121.128.0.0/11 AS9856 Korea Telecom 2,097,152
121.160.0.0/11 AS23582 Korea Telecom 2,097,152
121.160.0.0/11 AS4766 Korea Telecom 2,097,152
121.128.0.0/11 AS4766 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
121.160.0.0/11 AS38089 Korea Telecom 2,097,152
121.208.0.0/12 AS1221 Telstra Limited 1,048,576
121.224.0.0/12 AS134770 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 AS137697 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 AS4134 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 AS140292 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS137702 CHINANET jiangsu province network 1,048,576
121.8.0.0/13 AS4134 CHINANET Guangdong province network 524,288
121.112.0.0/13 AS4713 NTT DOCOMO BUSINESS,Inc. 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
121.8.0.0/13 AS135089 CHINANET Guangdong province network 524,288
121.16.0.0/13 AS4837 China Unicom Hebei province network 524,288
121.64.0.0/14 AS17598 LG DACOM Corporation 262,144
121.60.0.0/14 AS4134 CHINANET Hubei province network 262,144
121.64.0.0/14 AS17586 LG DACOM Corporation 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
121.80.0.0/14 AS17511 OPTAGE Inc. 262,144
121.204.0.0/14 AS133776 CHINANET Fujian province network 262,144
121.204.0.0/14 AS133775 CHINANET Fujian province network 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
121.84.0.0/14 AS17511 OPTAGE Inc. 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
121.64.0.0/14 AS3786 LG DACOM Corporation 262,144
121.40.0.0/14 AS37963 Aliyun Computing Co., LTD 262,144
121.248.0.0/14 AS4538 China Education and Research Network 262,144
121.196.0.0/14 AS37963 Aliyun Computing Co., LTD 262,144
121.76.0.0/15 AS9812 Oriental Cable Network Co., Ltd. 131,072
121.44.0.0/15 AS7545 iiNet Limited 131,072
121.194.0.0/15 AS4538 China Education and Research Network 131,072
121.202.0.0/15 AS17924 SmarTone Mobile Communications Ltd 131,072
121.48.0.0/15 AS4538 China Education and Research Network 131,072
121.44.0.0/15 AS4739 iiNet Limited 131,072
121.96.0.0/15 AS6648 Bayan Telecommunications Incorporated 131,072
121.124.0.0/15 AS9318 SK Broadband Co Ltd 131,072
121.2.0.0/15 AS2527 Sony Network Communications Inc. 131,072

Hosted domains

There are 1,492 domain names hosted across 601 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
121.136.95.149 xn--h49a85uuzc4x3a.net 36
121.138.248.35 watvtruth.org 13
121.138.248.144 ahnsahnghong.com 12
121.138.248.67 intlweloveu.org 11
121.136.95.147 ykmall.biz 10
121.141.70.17 homsys.co.kr 7
121.136.95.140 thecellin.co.kr 6
121.140.151.252 mcnex.co.kr 6
121.142.12.176 nn21.net 6
121.142.24.171 cobatec.co.kr 5
121.137.47.174 clevi.us 4
121.140.139.28 kgesu.com 4
121.141.39.233 dosa.run 3
121.140.19.226 will.or.kr 3
121.136.84.16 sensta.me 3
121.141.6.221 einsis.com 3
121.136.201.98 hjk.kr 3
121.139.30.98 soshymking.dev 3
121.137.95.37 braincns.com 3
121.139.73.163 gazah.org 3

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

283,523 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
121.142.187.178 AS4766 Korea Telecom 1.31ms from Seoul, KR
121.142.137.144 AS4766 Korea Telecom 1.37ms from Seoul, KR
121.142.18.225 AS4766 Korea Telecom 1.20ms from Seoul, KR
121.142.189.14 AS4766 Korea Telecom 1.25ms from Seoul, KR
121.142.197.167 AS4766 Korea Telecom 1.46ms from Seoul, KR
121.142.69.220 AS4766 Korea Telecom 1.04ms from Seoul, KR
121.142.157.27 AS4766 Korea Telecom 1.40ms from Seoul, KR
121.142.164.145 AS4766 Korea Telecom 1.29ms from Seoul, KR
121.142.205.148 AS4766 Korea Telecom 1.43ms from Seoul, KR
121.142.38.16 AS4766 Korea Telecom 1.18ms from Seoul, KR
121.142.113.101 AS4766 Korea Telecom 1.44ms from Seoul, KR
121.142.94.193 AS4766 Korea Telecom 1.41ms from Seoul, KR
121.142.57.117 AS4766 Korea Telecom 1.82ms from Seoul, KR
121.141.243.254 AS4766 Korea Telecom 0.95ms from Seoul, KR
121.142.123.38 AS4766 Korea Telecom 1.25ms from Seoul, KR
121.142.59.233 AS4766 Korea Telecom 1.73ms from Seoul, KR
121.142.82.91 AS4766 Korea Telecom 1.42ms from Seoul, KR
121.141.247.137 AS4766 Korea Telecom 1.12ms from Seoul, KR
121.142.44.14 AS4766 Korea Telecom 1.51ms from Seoul, KR
121.142.71.160 AS4766 Korea Telecom 1.41ms from Seoul, KR
121.142.19.161 AS4766 Korea Telecom 1.26ms from Seoul, KR
121.142.0.233 AS4766 Korea Telecom 1.37ms from Seoul, KR
121.142.114.113 AS4766 Korea Telecom 1.39ms from Seoul, KR
121.142.146.75 AS4766 Korea Telecom 1.40ms from Seoul, KR
121.142.109.188 AS4766 Korea Telecom 1.25ms 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
20.73.68.189 AS8075 Microsoft Corporation 0.23ms from Amsterdam, NL
58.96.62.189 AS10143 Exetel Pty Ltd 0.26ms from Brisbane, AU
102.182.9.157 AS37611 AFRIHOST SP (PTY) LTD 16.50ms from Cape Town, ZA
139.211.175.125 AS4837 CHINA UNICOM China169 Backbone 9.38ms from Changchun, CN
177.135.83.205 AS18881 TELEFÔNICA BRASIL S.A 3.22ms from Curitiba, BR
18.203.48.61 AS16509 Amazon.com, Inc. 0.17ms from Dublin, IE
93.95.74.93 AS60690 Opin Kerfi hf 1.68ms from Hafnarfjoerdur, IS
146.212.34.173 AS21283 A1 Slovenija telekomunikacijske storitve,d.d. 0.95ms from Ljubljana, SI
92.28.106.29 AS13285 TalkTalk Communications Limited 3.70ms from London, GB
196.202.169.173 AS15399 Wananchi Group (Kenya) Limited 0.64ms from Nairobi, KE
90.55.125.125 AS3215 Orange S.A. 13.95ms from Paris, FR
150.138.194.13 AS58540 Jinan,250000 1.63ms from Qingdao, CN
109.247.203.141 AS29695 Altibox AS 1.91ms from Sandefjord, NO
222.222.215.61 AS4134 CHINANET-BACKBONE 2.55ms from Shijiazhuang, CN
105.111.15.29 AS36947 Telecom Algeria 11.17ms from Tunis, TN
50.85.18.77 AS8075 Microsoft Corporation 0.24ms from Amsterdam, NL
24.38.165.253 AS25710 i3 Broadband 4.09ms from Boston, US
200.163.119.13 AS8167 V tal 8.60ms from Brasilia, BR
190.231.141.93 AS7303 Telecom Argentina S.A. 1.81ms from Buenos Aires, AR
156.192.185.77 AS8452 TE-AS 9.72ms from Cairo, EG
80.229.3.253 AS6871 Plusnet 6.70ms from Erith, GB
88.153.171.253 AS3209 Vodafone GmbH 4.50ms from Frankfurt am Main, DE
76.186.70.13 AS11427 Charter Communications Inc 7.68ms from Houston, US
103.164.214.109 AS17995 PT iForte Global Internet 0.66ms from Jakarta, ID
123.231.154.237 AS4800 PT Aplikanusa Lintasarta 0.65ms from Jakarta, ID

Traceroute

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

$
traceroute -a -n -q1 121.139.105.38
traceroute to 121.139.105.38 (121.139.105.38): 64 hops max, 52 byte packets
2 *
3 *
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Seoul, KR
On

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