203.249.163.0/24

AS17593 · NDS Coporation

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Summary

Country	South Korea
Domain	kt.com
ASN	AS17593
Parent Range	203.249.160.0/19
Registry	KRNIC
ID	KORNET-KR

WHOIS Details

inetnum:        203.249.160.0 - 203.249.191.255
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

Overlapping Ranges

BGP prefixes that contain 203.249.163.0/24

Range	ASN	Company	Num of IPs
203.249.160.0/19	AS4766	Korea Telecom	8,192
203.249.160.0/19	AS17593	Korea Telecom	8,192

Nearby Ranges

BGP prefixes that overlap with 203.249.0.0/16

Range	ASN	Company	Num of IPs
203.249.160.0/19	AS4766	Korea Telecom	8,192
203.249.160.0/19	AS17593	Korea Telecom	8,192
203.249.114.0/23	AS9523	Mokwon University	512
203.249.40.0/24	AS10073	KOREA NATIONAL OPEN UNIVERSITY	256
203.249.41.0/24	AS10073	KOREA NATIONAL OPEN UNIVERSITY	256
203.249.42.0/24	AS10073	KOREA NATIONAL OPEN UNIVERSITY	256
203.249.43.0/24	AS10073	KOREA NATIONAL OPEN UNIVERSITY	256
203.249.44.0/24	AS10073	KOREA NATIONAL OPEN UNIVERSITY	256
203.249.45.0/24	AS10073	KOREA NATIONAL OPEN UNIVERSITY	256
203.249.122.0/24	AS3786	SEOKYEONG UNIVERSITY	256
203.249.123.0/24	AS3786	SEOKYEONG UNIVERSITY	256
203.249.37.0/24	AS3786	CHONGSHIN UNIVERSITY	256
203.249.39.0/24	AS3786	Dongyang Technical College	256
203.249.11.0/24	AS4766	KYONGGI UNIVERSTY	256
203.249.12.0/24	AS4766	KYONGGI UNIVERSTY	256
203.249.13.0/24	AS4766	KYONGGI UNIVERSTY	256
203.249.14.0/24	AS4766	KYONGGI UNIVERSTY	256
203.249.15.0/24	AS4766	KYONGGI UNIVERSTY	256
203.249.16.0/24	AS4766	KYONGGI UNIVERSTY	256
203.249.32.0/24	AS4766	CHUNGBUK PROVINCIAL UNIVERSITY OF SCIENCE & TECHNOLOGY	256
203.249.38.0/24	AS55611	KYUNGMIN	256
203.249.126.0/24	AS9318	GACHON University	256
203.249.127.0/24	AS9318	GACHON University	256
203.249.33.0/24	AS9318	GACHON University	256
203.249.47.0/24	AS10071	Anyang University	256
203.249.35.0/24	AS9867	Jeonju Technical College	256
203.249.34.0/24	AS10073	KOREA NATIONAL OPEN UNIVERSITY	256
203.249.36.0/24	AS10073	KOREA NATIONAL OPEN UNIVERSITY	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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
52.10.212.200	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
3.147.193.216	AS16509 Amazon.com, Inc.	`0.17ms` from Columbus, US
66.68.165.120	AS11427 Charter Communications Inc	`4.81ms` from Dallas, US
79.203.43.184	AS3320 Deutsche Telekom AG	`8.99ms` from Frankfurt am Main, DE
220.250.13.216	AS4837 CHINA UNICOM China169 Backbone	`7.30ms` from Fuzhou, CN
95.175.120.24	AS49282 Verne Vantaa Oy	`0.79ms` from Helsinki, FI
76.82.88.168	AS20001 Charter Communications Inc	`8.60ms` from Los Angeles, US
104.161.51.248	AS53755 Input Output Flood LLC	`0.63ms` from Phoenix, US
211.235.45.8	AS9976 Namincheon Brodcasting Co., Ltd.	`1.77ms` from Seoul, KR
121.209.19.40	AS1221 Telstra Limited	`4.58ms` from Sydney, AU
62.112.147.8	AS59642 UAB Cherry Servers	`0.34ms` from Amsterdam, NL
97.242.216.104	AS6167 Verizon Business	`9.85ms` from Chicago, US
109.57.128.200	AS44034 Hi3G Access AB	`7.96ms` from Copenhagen, DK
20.233.42.104	AS8075 Microsoft Corporation	`1.28ms` from Dubai, AE
45.7.123.104	AS266638 Giga Telecom LTDA ME	`19.57ms` from Fortaleza, BR
91.2.145.216	AS3320 Deutsche Telekom AG	`5.06ms` from Frankfurt am Main, DE
212.146.144.152	AS15943 wilhelm.tel GmbH	`0.47ms` from Hamburg, DE
2.63.46.88	AS12389 PJSC Rostelecom	`0.91ms` from Krasnoyarsk, RU
83.52.149.120	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.35ms` from Madrid, ES
34.147.23.40	AS396982 Google LLC	`0.13ms` from Oudeschip, NL
66.109.138.56	AS21947 Blackfoot Telephone Cooperative, Inc.	`14.61ms` from Seattle, US
143.198.222.216	AS14061 DigitalOcean, LLC	`0.21ms` from Singapore, SG
193.36.90.40	AS211450 SPIDER DOOEL GEVGELIJA	`2.88ms` from Skopje, MK
87.116.98.8	AS29667 Atlantis Net Ltd.	`1.47ms` from Sofia, BG
134.180.240.200	AS2519 ARTERIA Networks Corporation	`2.80ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -f2 -m7 203.249.163.169

traceroute to 203.249.163.169 (203.249.163.169): 7 hops max, 52 byte packets

2 [AS140599] 103.150.220.2 0.118 ms

3 *

4 [AS9658] 180.232.5.41 23.847 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Angeles City, PH

On January 18th 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.

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