211.253.236.0/23

AS9955  ·  Baekseok University

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Summary

Country South Korea
Domain kt.com
ASN AS9955
Registry APNIC
ID KORNET-KR

WHOIS Details

inetnum:        211.253.224.0 - 211.253.239.255
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:  2025-11-03T08:15:07Z
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:        211.253.224.0 - 211.253.239.255
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

Nearby Ranges

BGP prefixes that overlap with 211.253.0.0/16

Range ASN Company Num of IPs
211.253.176.0/20 AS10176 Korea Telecom 4,096
211.253.72.0/21 AS9531 Korea Telecom 2,048
211.253.68.0/22 AS9531 Gwangjugwangyeoksigyoyukcheong 1,024
211.253.61.0/24 AS17574 KT 256
211.253.61.0/24 AS17574 KT 256
211.253.60.0/24 AS17841 KT 256
211.253.60.0/24 AS17841 KT 256
211.253.61.0/24 AS17841 KT 256
211.253.61.0/24 AS17841 KT 256
211.253.62.0/24 AS17841 Korea Telecom 256
211.253.65.0/24 AS45400 Korea Telecom 256
211.253.67.0/24 AS45400 Korea Telecom 256
211.253.56.0/24 AS4766 Korea Telecom 256
211.253.59.0/24 AS4766 Baekseokyesuldaehakgyo 256
211.253.60.0/24 AS17574 KT 256
211.253.60.0/24 AS17574 KT 256

Hosted domains

There are no domains currently hosted on this ASN.

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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
35.81.166.151 AS16509 Amazon.com, Inc. 0.55ms from Boardman, US
56.136.104.7 AS8987 Amazon Data Services Ireland Ltd 0.38ms from Boardman, US
192.24.215.247 AS6181 Cincinnati Bell Telephone Company LLC 1.87ms from Cincinnati, US
37.128.148.135 AS197902 Hostnet B.V. 0.56ms from Copenhagen, DK
84.171.81.87 AS3320 Deutsche Telekom AG 5.46ms from Frankfurt am Main, DE
174.170.222.87 AS7922 Comcast Cable Communications, LLC 4.17ms from Houston, US
46.63.50.119 AS51784 "X-City" Ltd. 0.86ms from Khmelnytskyi, UA
81.9.231.167 AS12338 Euskaltel S.A. 8.10ms from Madrid, ES
79.145.120.119 AS3352 TELEFONICA DE ESPANA S.A.U. 8.56ms from Madrid, ES
103.209.13.23 AS136000 Lightning Broadband Pty Ltd 0.95ms from Melbourne, AU
192.167.209.135 AS137 Consortium GARR 7.41ms from Milan, IT
58.17.121.7 AS4837 CHINA UNICOM China169 Backbone 3.74ms from Nanchang, CN
3.171.255.39 AS16509 Amazon.com, Inc. 0.11ms from Osasco, BR
199.253.183.183 AS26710 ICANN 0.31ms from Prague, CZ
52.53.253.215 AS16509 Amazon.com, Inc. 0.18ms from San Jose, US
218.212.183.55 AS55430 Starhub Ltd 2.23ms from Singapore, SG
126.69.48.135 AS17676 SoftBank Corp. 5.24ms from Tokyo, JP
125.42.230.231 AS4837 CHINA UNICOM China169 Backbone 6.30ms from Zhengzhou, CN
108.139.18.183 AS16509 Amazon.com, Inc. 0.08ms from Atlanta, US
97.176.231.199 AS6167 Verizon Business 17.09ms from Chicago, US
145.241.246.151 AS31898 Oracle Corporation 0.21ms from London, GB
2.98.221.87 AS13285 TalkTalk Communications Limited 1.66ms from Manchester, GB
193.206.158.71 AS137 Consortium GARR 0.39ms from Rome, IT
118.61.173.151 AS4766 Korea Telecom 5.84ms from Seoul, KR
1.244.217.71 AS9318 SK Broadband Co Ltd 2.89ms 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 -f4 -m12 211.253.237.65
traceroute to 211.253.237.65 (211.253.237.65): 12 hops max, 52 byte packets
4 [AS3356] 4.68.37.206 95.259 ms
5 *
6 [AS4766] 112.174.91.165 230.348 ms
7 *
8 *
9 [AS4766] 175.204.250.42 232.634 ms
10 *
11 *
12 *
Measurement taken from IPinfo ProbeNet in Bogota, CO
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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