203.242.0.0/19

AS4766 · Korea Telecom

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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:        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

Nearby Ranges

BGP prefixes that overlap with 203.242.0.0/16

Range	ASN	Company	Num of IPs
203.242.80.0/20	AS10049	SK Co.,	4,096
203.242.32.0/20	AS10189	Hyundai Movex	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
203.242.62.0/24	AS10189	Hyundai Movex	256
203.242.202.0/24	AS7557	KTNETDRSERVICENETWORK	256
203.242.207.0/24	AS7557	KTNETDRDAEJEONBACKBONE	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
203.242.4.33	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`3.59ms` from Seoul, KR
203.242.0.161	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`1.59ms` from Seoul, KR
203.242.6.226	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`1.60ms` from Seoul, KR
203.242.2.161	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`3.47ms` from Seoul, KR
203.242.5.5	AS45400 Korea Telecom	`2.48ms` from Seoul, KR
203.242.3.226	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`1.44ms` from Seoul, KR
203.242.1.146	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`1.51ms` 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
62.109.210.3	AS13445 Cisco Webex LLC	`1.48ms` from Amsterdam, NL
122.155.24.3	AS9335 National Telecom Public Company Limited	`0.45ms` from Bangkok, TH
69.49.138.83	AS21547 FirstLight Networks, LLC	`3.80ms` from Boston, US
65.24.166.179	AS10796 Charter Communications Inc	`17.53ms` from Columbus, US
171.226.37.35	AS7552 Viettel Group	`0.99ms` from Ho Chi Minh City, VN
23.199.183.99	AS16625 Akamai Technologies, Inc.	`0.14ms` from Houston, US
220.70.37.67	AS4766 Korea Telecom	`1.32ms` from Incheon, KR
93.182.23.51	AS41802 Limited Liability Company Kvidex-Telecom	`1.20ms` from Moscow, RU
13.36.201.19	AS16509 Amazon.com, Inc.	`0.19ms` from Paris, FR
45.185.22.67	AS263222 RVR INTERNATIONAL LIMITED	`0.95ms` from Princes Town, TT
165.76.168.195	AS17676 SoftBank Corp.	`0.66ms` from Tokyo, JP
60.95.61.83	AS17676 SoftBank Corp.	`3.11ms` from Tokyo, JP
152.117.78.67	AS30600 Metronet	`0.41ms` from Chicago, US
34.245.11.99	AS16509 Amazon.com, Inc.	`0.50ms` from Dublin, IE
79.222.21.147	AS3320 Deutsche Telekom AG	`3.20ms` from Duesseldorf, DE
14.168.169.243	AS45899 VNPT Corp	`5.75ms` from Ho Chi Minh City, VN
195.147.170.147	AS5413 Wavenet Limited	`9.43ms` from London, GB
164.67.40.3	AS52 University of California, Los Angeles	`0.71ms` from Los Angeles, US
94.242.220.243	AS7979 Servers.com, Inc.	`4.97ms` from Luxembourg, LU
23.137.196.3	AS401442 Spur Intelligence Corporation	`0.09ms` from Miami, US
23.212.253.211	AS20940 Akamai International B.V.	`0.26ms` from Mumbai, IN
170.114.104.131	AS31898 Oracle Corporation	`0.15ms` from Mumbai, IN
126.5.225.83	AS17676 SoftBank Corp.	`9.89ms` from Osaka, JP
200.112.122.115	AS7418 TELEFÓNICA CHILE S.A.	`2.01ms` from Santiago, CL
154.5.217.83	AS852 TELUS Communications Inc.	`3.92ms` from Seattle, US

Traceroute

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

traceroute -a -n -q1 -f2 -m8 203.242.23.246

traceroute to 203.242.23.246 (203.242.23.246): 8 hops max, 52 byte packets

2 [] 84.17.33.142 226.864 ms

3 [] 138.199.0.107 0.323 ms

4 *

5 [AS4766] 112.174.89.17 584.316 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On April 25th 2026

What are IP address ranges?

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