210.121.128.0/17

AS4766  ·  Korea Telecom

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Summary

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

WHOIS Details

inetnum:        210.121.128.0 - 210.121.255.255
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:        [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

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

Nearby Ranges

BGP prefixes that overlap with 210.121.0.0/16

Range ASN Company Num of IPs
210.121.0.0/17 AS45374 SEJONG NETWORKS 32,768
210.121.0.0/17 AS9848 SEJONG NETWORKS 32,768

Hosted domains

There are 225 domain names hosted across 78 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
210.121.210.44 hotplaceinjeju.co.kr 112
210.121.176.12 singleton.kr 11
210.121.197.5 hwacheon.com.mx 5
210.121.164.36 fz-indecoration.com 4
210.121.188.38 pang.kr 4
210.121.148.100 kcredit.or.kr 4
210.121.176.122 holo.cf 4
210.121.210.28 archi-training.kr 3
210.121.238.5 osang.com 3
210.121.151.145 worlddevelopmentbank.com 2
210.121.168.119 rrx-is.com 2
210.121.143.213 inno-horn.com 2
210.121.204.84 dajeong-tools.com 2
210.121.143.214 inno-heim.com 2
210.121.168.245 e-ilshin.com 2
210.121.163.195 soomoon.net 1
210.121.243.11 wigobot.com 1
210.121.164.8 songann.com 1
210.121.216.98 cti100yearshop.co.kr 1
210.121.129.237 bizment.kr 1

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

Pingable IPs

9,634 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
210.121.157.113 AS18176 KOOKMIN UNIVERSITY 1.88ms from Seoul, KR
210.121.141.195 AS4766 Korea Telecom 1.00ms from Seoul, KR
210.121.135.240 AS55627 Dongduk Womens University 1.95ms from Seoul, KR
210.121.158.57 AS18176 KOOKMIN UNIVERSITY 1.82ms from Seoul, KR
210.121.190.166 AS4766 Korea Telecom 0.72ms from Seoul, KR
210.121.227.62 AS4766 Korea Telecom 1.89ms from Seoul, KR
210.121.179.211 AS4766 Korea Telecom 0.81ms from Seoul, KR
210.121.147.193 AS4766 Korea Telecom 0.89ms from Seoul, KR
210.121.192.118 AS4766 Korea Telecom 0.95ms from Seoul, KR
210.121.128.125 AS4766 Korea Telecom 1.05ms from Seoul, KR
210.121.152.128 AS18176 KOOKMIN UNIVERSITY 2.00ms from Seoul, KR
210.121.130.70 AS4766 Korea Telecom 0.92ms from Seoul, KR
210.121.146.254 AS4766 Korea Telecom 0.96ms from Seoul, KR
210.121.218.190 AS4766 Korea Telecom 1.57ms from Seoul, KR
210.121.250.21 AS4766 Korea Telecom 4.16ms from Seoul, KR
210.121.231.126 AS4766 Korea Telecom 1.77ms from Seoul, KR
210.121.150.254 AS4766 Korea Telecom 1.08ms from Seoul, KR
210.121.248.204 AS4766 Korea Telecom 2.65ms from Seoul, KR
210.121.241.202 AS4766 Korea Telecom 2.92ms from Seoul, KR
210.121.189.196 AS4766 Korea Telecom 1.18ms from Seoul, KR
210.121.212.152 AS4766 Korea Telecom 1.14ms from Seoul, KR
210.121.175.202 AS4766 Korea Telecom 0.80ms from Seoul, KR
210.121.129.168 AS4766 Korea Telecom 1.23ms from Seoul, KR
210.121.243.129 AS4766 Korea Telecom 2.79ms from Seoul, KR
210.121.139.240 AS55627 Dongduk Womens University 2.05ms 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
2.51.122.1 AS5384 Emirates Internet 3.60ms from Al Fujairah City, AE
213.42.228.113 AS5384 Emirates Internet 3.51ms from Al Fujairah City, AE
94.215.76.1 AS33915 Vodafone Libertel B.V. 3.61ms from Amsterdam, NL
24.132.94.1 AS33915 Vodafone Libertel B.V. 3.86ms from Amsterdam, NL
83.84.133.1 AS33915 Vodafone Libertel B.V. 5.53ms from Amsterdam, NL
85.92.138.1 AS8315 Accenture B. V. 0.70ms from Amsterdam, NL
98.191.208.209 AS22773 Cox Communications Inc. 1.19ms from Ashburn, US
139.177.59.1 AS13825 Troy Cablevision, Inc. 4.08ms from Atlanta, US
75.130.145.1 AS20115 Charter Communications LLC 9.97ms from Atlanta, US
71.199.132.209 AS7922 Comcast Cable Communications, LLC 5.17ms from Atlanta, US
110.169.151.1 AS17552 True Online 1.89ms from Bangkok, TH
181.48.141.81 AS14080 Telmex Colombia S.A. 1.19ms from Bogota, CO
71.234.40.1 AS7922 Comcast Cable Communications, LLC 1.54ms from Boston, US
67.149.194.1 AS12083 WideOpenWest Finance LLC 8.57ms from Chicago, US
216.8.215.17 AS13807 Great Plains Communications LLC 5.33ms from Columbus, US
201.235.104.1 AS7303 Telecom Argentina S.A. 1.14ms from Cordoba, AR
187.17.17.145 AS28285 Beltrãonet Telecomunicações LTDA - EPP 7.97ms from Curitiba, BR
71.86.115.129 AS20115 Charter Communications LLC 6.36ms from Dallas, US
139.6.85.1 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 3.65ms from Duesseldorf, DE
108.173.199.1 AS852 TELUS Communications Inc. 1.25ms from Edmonton, CA
125.89.130.17 AS4134 CHINANET-BACKBONE 3.95ms from Guangzhou, CN
223.94.33.1 AS56041 China Mobile communications corporation 7.65ms from Hangzhou, CN
180.93.212.1 AS7602 Sai gon Postel Corporation 1.81ms from Ho Chi Minh City, VN
202.95.17.97 AS152194 CTG Server Limited 0.65ms from Hong Kong, HK
61.10.244.1 AS9908 HK Cable TV Ltd 1.13ms from Hong Kong, HK

Traceroute

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

$
traceroute -a -n -q1 -f2 210.121.132.2
traceroute to 210.121.132.2 (210.121.132.2): 64 hops max, 52 byte packets
2 [AS43060] 94.158.57.92 0.535 ms
3 *
7 [AS58453] 223.121.2.93 87.21 ms
8 *
9 [AS58453] 223.120.2.54 92.332 ms
10 [AS3786] 1.208.112.81 172.972 ms
11 *
12 *
13 *
14 [AS3786] 1.213.115.74 168.093 ms
15 [AS3786] 1.208.141.26 169.759 ms
16 [AS3786] 118.128.27.234 166.496 ms
17 [AS55627] 210.121.137.5 171.239 ms
18 [AS55627] 210.121.137.3 167.47 ms
19 *
20 *
21 [AS55627] 210.121.132.2 167.282 ms
Measurement taken from IPinfo ProbeNet in Tashkent, UZ
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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