203.242.2.0/24

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 203.242.2.0/24

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

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

IP Address	ASN	Details
203.242.2.225	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`3.40ms` 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
142.252.138.24	AS3257 GTT Communications Inc.	`0.24ms` from Dallas, US
130.190.254.152	AS1942 Renater	`6.22ms` from Marseille, FR
206.194.252.104	AS23089 Hotwire Communications	`1.63ms` from Miami, US
185.45.82.24	AS34545 Webinar Tehnologii OOO	`0.66ms` from Moscow, RU
112.187.45.152	AS4766 Korea Telecom	`6.45ms` from Seoul, KR
219.167.1.24	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.72ms` from Tokyo, JP
46.177.130.8	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`1.11ms` from Athens, GR
106.75.19.136	AS23724 IDC, China Telecommunications Corporation	`2.74ms` from Beijing, CN
84.184.235.168	AS3320 Deutsche Telekom AG	`2.20ms` from Berlin, DE
109.128.234.40	AS5432 Proximus NV	`1.87ms` from Brussels, BE
94.27.145.200	AS5483 Magyar Telekom Plc.	`1.05ms` from Budapest, HU
84.156.20.216	AS3320 Deutsche Telekom AG	`9.11ms` from Frankfurt am Main, DE
217.95.169.40	AS3320 Deutsche Telekom AG	`4.19ms` from Hamburg, DE
72.130.22.232	AS20001 Charter Communications Inc	`7.74ms` from Honolulu, US
39.124.67.56	AS9318 SK Broadband Co Ltd	`1.77ms` from Incheon, KR
41.73.59.8	AS37105 RAIN GROUP HOLDINGS (PTY) LTD	`0.18ms` from Johannesburg, ZA
81.151.57.72	AS2856 British Telecommunications PLC	`9.03ms` from London, GB
65.0.101.200	AS16509 Amazon.com, Inc.	`0.15ms` from Mumbai, IN
73.121.150.72	AS7922 Comcast Cable Communications, LLC	`13.19ms` from Murfreesboro, US
66.67.109.24	AS11351 Charter Communications Inc	`15.24ms` from New York City, US
79.206.213.88	AS3320 Deutsche Telekom AG	`3.62ms` from Nuernberg, DE
138.1.131.216	AS31898 Oracle Corporation	`1.00ms` from Phoenix, US
20.171.250.120	AS8075 Microsoft Corporation	`0.19ms` from Phoenix, US
125.132.48.56	AS4766 Korea Telecom	`1.57ms` from Seoul, KR
61.170.132.8	AS4812 China Telecom (Group)	`3.19ms` from Shanghai, CN

Traceroute

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

traceroute -a -n -q1 -f6 203.242.2.49

traceroute to 203.242.2.49 (203.242.2.49): 64 hops max, 52 byte packets

6 [] 206.81.81.40 1.032 ms

7 *

8 *

9 *

10 *

11 [AS9318] 39.120.253.82 119.524 ms

12 *

13 *

14 *

15 [AS17841] 203.238.168.186 119.02 ms

16 *

17 [AS17841] 203.242.2.49 119.895 ms

Measurement taken from

IPinfo ProbeNet in Seattle, US

On January 9th 2026

What are IP address ranges?

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