203.242.0.0/19

AS4766 · Korea Telecom

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

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

WHOIS Details

inetnum:        203.242.0.0 - 203.242.31.255
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 203.242.0.0/16

Range	ASN	Company	Num of IPs
203.242.32.0/20	AS10189	Hyundai Movex	4,096
203.242.80.0/20	AS10049	SK Co.,	4,096
203.242.48.0/21	AS10189	Hyundai Movex	2,048
203.242.56.0/22	AS10189	Hyundai Movex	1,024
203.242.60.0/23	AS10189	Hyundai Movex	512
203.242.207.0/24	AS7557	KTNETDRDAEJEONBACKBONE	256
203.242.62.0/24	AS10189	Hyundai Movex	256
203.242.202.0/24	AS7557	KTNETDRSERVICENETWORK	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

Read more

Pingable IPs

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

IP Address	ASN	Details
203.242.2.129	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`3.41ms` from Seoul, KR
203.242.4.33	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`3.35ms` from Seoul, KR
203.242.3.254	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`1.42ms` from Seoul, KR
203.242.0.161	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`1.50ms` from Seoul, KR
203.242.1.1	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`1.53ms` from Seoul, KR
203.242.6.242	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`1.61ms` from Seoul, KR
203.242.5.6	AS45400 Korea Telecom	`2.52ms` 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
34.238.6.131	AS14618 Amazon.com, Inc.	`0.55ms` from Ashburn, US
34.48.169.243	AS396982 Google LLC	`0.12ms` from Ashburn, US
59.88.45.147	AS9829 National Internet Backbone	`15.82ms` from Bengaluru, IN
24.60.231.99	AS7922 Comcast Cable Communications, LLC	`9.19ms` from Boston, US
165.4.7.3	AS3741 Dimension Data	`1.39ms` from Cape Town, ZA
12.72.114.211	AS7018 AT&T Enterprises, LLC	`9.17ms` from Chicago, US
71.11.161.131	AS20115 Charter Communications LLC	`7.24ms` from Dallas, US
104.207.227.51	AS36444 Liquid Web, L.L.C	`0.38ms` from Detroit, US
87.252.202.3	AS15830 Equinix (EMEA) Acquisition Enterprises B.V.	`0.43ms` from Dublin, IE
14.228.239.163	AS45899 VNPT Corp	`1.91ms` from Hanoi, VN
18.61.222.163	AS16509 Amazon.com, Inc.	`1.27ms` from Hyderabad, IN
46.31.4.3	AS41942 JSC Dozor-Teleport	`1.29ms` from Khabarovsk, RU
161.132.8.3	AS3132 Red Cientifica Peruana	`0.69ms` from Lima, PE
2.124.248.195	AS5607 Sky UK Limited	`7.54ms` from London, GB
23.224.111.131	AS40065 CNSERVERS LLC	`0.26ms` from Los Angeles, US
116.153.41.19	AS4837 CHINA UNICOM China169 Backbone	`1.39ms` from Nanchang, CN
14.47.169.99	AS4766 Korea Telecom	`1.83ms` from Seoul, KR
220.196.164.19	AS138421 China Unicom	`3.27ms` from Shanghai, CN
60.120.184.195	AS17676 SoftBank Corp.	`2.74ms` from Tokyo, JP
153.147.143.131	AS4713 NTT DOCOMO BUSINESS,Inc.	`18.35ms` from Tokyo, JP
89.25.132.163	AS31242 P4 Sp. z o.o.	`0.35ms` from Warsaw, PL
109.191.236.243	AS8369 Intersvyaz-2 JSC	`3.59ms` from Yekaterinburg, RU
73.200.80.131	AS7922 Comcast Cable Communications, LLC	`4.10ms` from Ashburn, US
193.116.194.51	AS7545 TPG Telecom Limited	`1.71ms` from Brisbane, AU
34.77.89.179	AS396982 Google LLC	`0.15ms` from Brussels, BE

Traceroute

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

traceroute -a -n -q1 -f4 -m8 203.242.10.80

traceroute to 203.242.10.80 (203.242.10.80): 8 hops max, 52 byte packets

4 [AS3356] 4.68.37.206 182.558 ms

5 [AS4766] 112.174.87.101 755.254 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Helsinki, FI

On January 9th 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.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales