211.253.251.0/24

AS18323 · Seoul National University Bundang Hospital

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Summary

Country	South Korea
Domain	kt.com
ASN	AS18323
Registry	APNIC
ID	KORNET

WHOIS Details

inetnum:        211.253.248.0 - 211.253.251.255
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:  2025-11-03T08:15:08Z
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:        211.253.248.0 - 211.253.251.255
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 5 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
211.253.251.102	snubh.org	3
211.253.251.113	snubh.org	3
211.253.251.50	snuhls.com	1
211.253.251.114	sim-snubh.org	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

Read more

Pingable IPs

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

IP Address	ASN	Details
211.253.251.110	AS18323 Seoul National University Bundang Hospital	`2.07ms` 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
202.204.80.8	AS4538 China Education and Research Network Center	`2.80ms` from Beijing, CN
111.162.37.184	AS4837 CHINA UNICOM China169 Backbone	`5.41ms` from Beijing, CN
35.95.191.88	AS16509 Amazon.com, Inc.	`0.18ms` from Boardman, US
52.36.128.168	AS16509 Amazon.com, Inc.	`0.14ms` from Boardman, US
34.212.111.72	AS16509 Amazon.com, Inc.	`0.21ms` from Boardman, US
18.224.68.104	AS16509 Amazon.com, Inc.	`0.17ms` from Columbus, US
92.51.161.40	AS8972 Host Europe GmbH	`3.10ms` from Frankfurt am Main, DE
217.95.217.120	AS3320 Deutsche Telekom AG	`3.38ms` from Hamburg, DE
61.239.211.168	AS9269 Hong Kong Broadband Network Ltd.	`0.84ms` from Hong Kong, HK
185.179.84.56	AS203203 Limited Liability Company "RTS-tender"	`2.10ms` from Moscow, RU
81.211.58.24	AS3216 PJSC "Vimpelcom"	`0.70ms` from Moscow, RU
93.219.93.184	AS3320 Deutsche Telekom AG	`2.46ms` from Nuernberg, DE
202.124.52.56	AS9614 Oita Cable Telecom Co,ltd.	`11.93ms` from Osaka, JP
177.32.129.56	AS28573 Claro NXT Telecomunicacoes Ltda	`4.71ms` from Sao Paulo, BR
112.168.231.88	AS4766 Korea Telecom	`1.42ms` from Seoul, KR
134.224.158.8	AS16509 Amazon.com, Inc.	`0.11ms` from Sydney, AU
125.224.216.104	AS3462 Data Communication Business Group	`2.55ms` from Taichung, TW
126.79.3.136	AS17676 SoftBank Corp.	`2.99ms` from Tokyo, JP
101.24.139.200	AS4837 CHINA UNICOM China169 Backbone	`8.28ms` from Beijing, CN
58.245.205.136	AS4837 CHINA UNICOM China169 Backbone	`6.27ms` from Changchun, CN
216.173.82.88	AS205659 UAB code200	`0.37ms` from Dallas, US
52.161.120.216	AS8075 Microsoft Corporation	`3.58ms` from Denver, US
178.93.31.232	AS3320 Deutsche Telekom AG	`0.64ms` from Frankfurt am Main, DE
8.139.39.248	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.03ms` from Hangzhou, CN
74.225.147.248	AS8075 Microsoft Corporation	`0.14ms` from Lohogaon, IN

Traceroute

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

traceroute -a -n -q1 211.253.251.102

traceroute to 211.253.251.102 (211.253.251.102): 64 hops max, 52 byte packets

1 [AS199524] 82.117.226.1 0.237 ms

2 *

3 *

4 *

5 [AS4766] 112.190.76.85 1.079 ms

6 *

7 *

8 *

9 *

10 [AS4766] 14.35.214.134 2.034 ms

11 [AS18323] 210.103.57.3 2.554 ms

12 *

13 *

14 [AS18323] 211.253.251.102 2.553 ms

Measurement taken from

IPinfo ProbeNet in Incheon, KR

On January 19th 2026

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.

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