211.51.103.0/24

AS18314 · Hana Card

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Summary

Country	South Korea
Domain	kt.com
ASN	AS18314
Parent Range	211.51.0.0/16
Registry	KRNIC
ID	KORNET-KR

WHOIS Details

inetnum:        211.51.0.0 - 211.51.255.255
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:        hostmaster@nic.or.kr 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:         kornet_ip@kt.com
nic-hdl:        IM9-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr 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:         kornet_ip@kt.com
nic-hdl:        IA9-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr 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

Overlapping Ranges

BGP prefixes that contain 211.51.103.0/24

Range	ASN	Company	Num of IPs
211.51.0.0/16	AS18314	Korea Telecom	65,536
211.51.0.0/16	AS38427	Korea Telecom	65,536
211.51.0.0/16	AS4766	Korea Telecom	65,536
211.51.0.0/16	AS9852	Korea Telecom	65,536

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
211.51.103.40	welfarecard.com	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

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

IP Address	ASN	Details
211.51.103.50	AS18314 Hana Card	`1.60ms` 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
12.16.180.56	AS7018 AT&T Enterprises, LLC	`8.03ms` from Dallas, US
156.67.174.152	AS60294 Deutsche Glasfaser Wholesale GmbH	`1.34ms` from Frankfurt am Main, DE
157.119.115.168	AS134548 DXTL Tseung Kwan O Service	`0.74ms` from Hong Kong, HK
156.234.78.216	AS138415 Yancy Limited	`0.74ms` from Hong Kong, HK
88.228.250.88	AS9121 Turk Telekomunikasyon Anonim Sirketi	`3.75ms` from Istanbul, TR
46.98.104.216	AS15377 TRADITIONAL LLC	`7.44ms` from Kyiv, UA
86.145.187.136	AS2856 British Telecommunications PLC	`4.02ms` from London, GB
76.87.83.8	AS20001 Charter Communications Inc	`6.46ms` from Los Angeles, US
71.229.43.216	AS7922 Comcast Cable Communications, LLC	`12.01ms` from Miami, US
151.33.35.40	AS1267 WIND TRE S.P.A.	`3.49ms` from Milan, IT
182.88.3.56	AS4837 CHINA UNICOM China169 Backbone	`10.08ms` from Nanning, CN
126.219.194.40	AS17676 SoftBank Corp.	`3.65ms` from Osaka, JP
220.211.178.120	AS2527 Sony Network Communications Inc.	`4.21ms` from Osaka, JP
90.14.212.88	AS3215 Orange S.A.	`14.89ms` from Paris, FR
90.79.134.216	AS3215 Orange S.A.	`2.15ms` from Paris, FR
20.59.79.136	AS8075 Microsoft Corporation	`0.62ms` from San Jose, US
223.166.51.104	AS17621 China Unicom Shanghai network	`3.19ms` from Shanghai, CN
13.212.210.104	AS16509 Amazon.com, Inc.	`0.52ms` from Singapore, SG
158.174.30.232	AS8473 Bahnhof AB	`0.87ms` from Stockholm, SE
52.198.77.232	AS16509 Amazon.com, Inc.	`0.34ms` from Tokyo, JP
126.129.31.8	AS17676 SoftBank Corp.	`3.92ms` from Tokyo, JP
24.150.147.88	AS7992 Cogeco Connexion Inc.	`11.93ms` from Toronto, CA
62.174.158.200	AS12430 VODAFONE ESPANA S.A.U.	`4.14ms` from Barcelona, ES
181.50.110.248	AS10620 Telmex Colombia S.A.	`13.83ms` from Bogota, CO
4.207.103.120	AS8075 Microsoft Corporation	`0.23ms` from Dublin, IE

Traceroute

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

traceroute -a -n -q1 211.51.103.2

traceroute to 211.51.103.2 (211.51.103.2): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.59 0.242 ms

2 [AS4766] 218.145.32.254 0.578 ms

3 *

4 *

5 [AS4766] 112.174.56.206 1.897 ms

6 *

7 [AS18314] 211.51.103.2 2.118 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On September 11th 2025

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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