203.243.1.0/24

AS17841 · NATIONAL INFORMATION RESOURCES SERVICE

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Summary

Country	South Korea
Domain	kt.com
ASN	AS17841
Registry	KRNIC
ID	KORNET-KR

WHOIS Details

inetnum:        203.243.0.0 - 203.243.3.255
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:        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

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

Nearby Ranges

BGP prefixes that overlap with 203.243.0.0/16

Range	ASN	Company	Num of IPs
203.243.128.0/17	AS141167	SEJONG NETWORKS	32,768
203.243.128.0/17	AS23584	SEJONG NETWORKS	32,768
203.243.128.0/17	AS9848	SEJONG NETWORKS	32,768
203.243.140.0/22	AS23584	HCN-Pusan	1,024
203.243.148.0/22	AS23584	HCN-Pusan	1,024
203.243.152.0/22	AS23584	HCN-Pusan	1,024
203.243.156.0/24	AS23584	HCN-Pusan	256
203.243.220.0/24	AS23584	HCN-Pusan	256
203.243.221.0/24	AS23584	HCN-Pusan	256
203.243.237.0/24	AS18300	Korea Electric Power Corporation	256
203.243.39.0/24	AS4766	Korea Telecom	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
203.243.1.101	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`8.01ms` 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
62.38.127.104	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`13.79ms` from Athens, GR
47.226.156.152	AS20115 Charter Communications LLC	`18.36ms` from Atlanta, US
45.192.166.248	AS395793 Arisk Communications inc.	`0.76ms` from Hong Kong, HK
210.124.33.104	AS3786 LG DACOM Corporation	`3.29ms` from Incheon, KR
198.204.126.8	AS5078 Oklahoma Network for Education Enrichment and	`5.92ms` from Kansas City, US
86.214.19.232	AS3215 Orange S.A.	`10.79ms` from Marseille, FR
62.228.42.24	AS6866 Cyprus Telecommunications Authority	`2.29ms` from Nicosia, CY
119.242.7.168	AS2518 BIGLOBE Inc.	`1.77ms` from Osaka, JP
86.234.56.40	AS3215 Orange S.A.	`17.02ms` from Paris, FR
108.204.123.216	AS7018 AT&T Enterprises, LLC	`4.32ms` from Redding, US
52.206.252.216	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
92.70.230.104	AS1136 KPN B.V.	`1.74ms` from Amsterdam, NL
143.47.110.136	AS31898 Oracle Corporation	`0.19ms` from Ashburn, US
195.170.8.88	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`1.04ms` from Athens, GR
36.139.199.152	AS9808 China Mobile Communications Group Co., Ltd.	`0.53ms` from Chengdu, CN
107.221.18.200	AS7018 AT&T Enterprises, LLC	`19.98ms` from Dallas, US
112.127.113.184	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`6.33ms` from Hangzhou, CN
223.92.7.104	AS9808 China Mobile Communications Group Co., Ltd.	`6.91ms` from Hangzhou, CN
84.234.73.120	AS58003 Planeetta Internet Oy	`0.70ms` from Helsinki, FI
109.13.7.72	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`14.81ms` from Lyon, FR
93.49.148.136	AS12874 Fastweb SpA	`0.80ms` from Milan, IT
222.2.106.216	AS2516 KDDI CORPORATION	`13.77ms` from Osaka, JP
50.39.170.152	AS20055 Wholesail networks LLC	`0.81ms` from Portland, US
14.92.156.104	AS4766 Korea Telecom	`4.69ms` from Seoul, KR
115.11.154.216	AS4766 Korea Telecom	`4.69ms` from Seoul, KR

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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