203.242.0.0/24

AS17841 · NATIONAL INFORMATION RESOURCES SERVICE

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Summary

Country	South Korea
Domain	kt.com
ASN	AS17841
Parent Range	203.242.0.0/19
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:        [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

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

Overlapping Ranges

BGP prefixes that contain 203.242.0.0/24

Range	ASN	Company	Num of IPs
203.242.0.0/19	AS4766	Korea Telecom	8,192
203.242.0.0/19	AS45400	Korea Telecom	8,192
203.242.0.0/19	AS17841	Korea Telecom	8,192

Nearby Ranges

BGP prefixes that overlap with 203.242.0.0/16

Range	ASN	Company	Num of IPs
203.242.0.0/19	AS4766	Korea Telecom	8,192
203.242.0.0/19	AS17841	Korea Telecom	8,192
203.242.0.0/19	AS45400	Korea Telecom	8,192
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

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

IP Address	ASN	Details
203.242.0.161	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`1.58ms` 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
146.185.144.24	AS14061 DigitalOcean, LLC	`0.17ms` from Amsterdam, NL
182.52.13.72	AS23969 TOT Public Company Limited	`1.42ms` from Bangkok, TH
93.133.106.72	AS6805 Telefonica Germany GmbH & Co.OHG	`4.02ms` from Duesseldorf, DE
1.55.11.72	AS18403 FPT Telecom Company	`8.33ms` from Hanoi, VN
109.251.72.72	AS31148 Freenet LTD	`1.01ms` from Kyiv, UA
98.254.83.24	AS7922 Comcast Cable Communications, LLC	`5.28ms` from Miami, US
65.183.126.200	AS17253 TEC of Jackson, Inc.	`6.71ms` from New Orleans, US
99.224.39.152	AS812 Rogers Communications Canada Inc.	`3.14ms` from Toronto, CA
44.239.210.216	AS16509 Amazon.com, Inc.	`0.20ms` from Boardman, US
184.106.117.72	AS19994 Rackspace Hosting	`1.26ms` from Chicago, US
68.38.209.24	AS7922 Comcast Cable Communications, LLC	`12.45ms` from Chicago, US
91.49.26.8	AS3320 Deutsche Telekom AG	`4.24ms` from Duesseldorf, DE
43.168.94.184	AS139341 ACE	`0.19ms` from Frankfurt am Main, DE
62.183.211.88	AS16086 DNA Oyj	`2.58ms` from Helsinki, FI
223.178.156.72	AS45609 Bharti Airtel Ltd. AS for GPRS Service	`0.51ms` from Lohogaon, IN
174.61.44.40	AS7922 Comcast Cable Communications, LLC	`10.11ms` from Miami, US
5.162.240.232	AS50010 Omani Qatari Telecommunication Company SAOC	`2.09ms` from Muscat, OM
112.26.165.216	AS9808 China Mobile Communications Group Co., Ltd.	`7.52ms` from Nanjing, CN
81.166.82.120	AS29695 Altibox AS	`6.23ms` from Oslo, NO
98.207.201.8	AS7922 Comcast Cable Communications, LLC	`5.56ms` from San Jose, US
14.93.34.8	AS4766 Korea Telecom	`5.76ms` from Seoul, KR
140.177.95.152	AS12119 ITV-3	`1.98ms` from St. Louis, US
13.75.178.8	AS8075 Microsoft Corporation	`0.70ms` from Sydney, AU
217.27.231.104	AS35467 DDFR IT Infra & Security B.V.	`3.35ms` from Amsterdam, NL
98.26.130.200	AS11426 Charter Communications Inc	`9.83ms` from Charlotte, US

Traceroute

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

traceroute -a -n -q1 203.242.0.130

traceroute to 203.242.0.130 (203.242.0.130): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.2 0.064 ms

2 *

3 [AS3786] 211.118.152.141 1.549 ms

4 *

5 *

6 *

7 *

8 [AS3786] 1.213.112.110 1.755 ms

9 [AS3786] 210.107.53.198 1.579 ms

10 *

11 *

12 *

13 [AS17841] 152.99.71.66 1.896 ms

14 [AS17841] 203.242.0.130 1.867 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On January 9th 2026

What are IP address ranges?

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