203.229.128.0/20

AS10162 · SNUH

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Summary

Country	South Korea
Domain	kt.com
ASN	AS10162
Parent Range	203.229.128.0/17
Registry	KRNIC
ID	KORNET-KR

WHOIS Details

inetnum:        203.229.128.0 - 203.229.255.255
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

Overlapping Ranges

BGP prefixes that contain 203.229.128.0/20

Range	ASN	Company	Num of IPs
203.229.128.0/17	AS4766	Korea Telecom	32,768
203.229.128.0/17	AS55586	Korea Telecom	32,768
203.229.128.0/17	AS38676	Korea Telecom	32,768
203.229.128.0/17	AS18325	Korea Telecom	32,768
203.229.128.0/17	AS10162	Korea Telecom	32,768

Nearby Ranges

BGP prefixes that overlap with 203.229.0.0/16

Range	ASN	Company	Num of IPs
203.229.128.0/17	AS18325	Korea Telecom	32,768
203.229.128.0/17	AS38676	Korea Telecom	32,768
203.229.128.0/17	AS4766	Korea Telecom	32,768
203.229.128.0/17	AS55586	Korea Telecom	32,768
203.229.128.0/17	AS10162	Korea Telecom	32,768
203.229.0.0/18	AS9689	SK Broadband Co Ltd	16,384
203.229.64.0/18	AS38095	SK Broadband Co Ltd	16,384
203.229.0.0/18	AS38096	SK Broadband Co Ltd	16,384
203.229.0.0/18	AS38097	SK Broadband Co Ltd	16,384
203.229.0.0/18	AS38103	SK Broadband Co Ltd	16,384

Hosted domains

There are 36 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.229.136.46	snuh.org	16
203.229.136.49	samsung-text.cyou	15
203.229.136.45	i-apa.net	2
203.229.138.191	smicuecrf.com	1
203.229.136.111	kucrf.org	1
203.229.136.43	snuhnanum.com	1

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

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

IP Address	ASN	Details
203.229.141.3	AS10162 SNUH	`1.84ms` from Seoul, KR
203.229.137.13	AS10162 SNUH	`1.54ms` from Incheon, KR
203.229.136.1	AS10162 SNUH	`1.69ms` from Seoul, KR
203.229.138.1	AS10162 SNUH	`1.50ms` from Incheon, 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
174.80.27.4	AS20115 Charter Communications LLC	`16.55ms` from Atlanta, US
94.52.35.244	AS48161 NEXTGEN COMMUNICATIONS SRL	`4.46ms` from Bucharest, RO
192.52.7.244	AS553 BelWue-Koordination	`5.07ms` from Frankfurt am Main, DE
154.218.106.132	AS134548 DXTL Tseung Kwan O Service	`0.68ms` from Hong Kong, HK
146.200.18.36	AS6871 Plusnet	`4.70ms` from London, GB
92.26.68.164	AS13285 TalkTalk Communications Limited	`5.98ms` from Manchester, GB
136.23.26.20	AS36492 Google, LLC	`0.09ms` from Miami, US
45.226.232.132	AS263478 DUFIBRANET TELECOM LTDA	`14.26ms` from Osasco, BR
187.67.215.36	AS28573 Claro NXT Telecomunicacoes Ltda	`8.23ms` from Rio de Janeiro, BR
148.78.21.228	AS26464 Joyent, Inc.	`0.88ms` from Seoul, KR
59.171.167.228	AS9824 JCOM Co., Ltd.	`5.50ms` from Tokyo, JP
24.62.74.20	AS7922 Comcast Cable Communications, LLC	`7.18ms` from Boston, US
91.57.207.180	AS3320 Deutsche Telekom AG	`8.31ms` from Frankfurt am Main, DE
58.232.244.36	AS9318 SK Broadband Co Ltd	`1.48ms` from Incheon, KR
160.39.19.52	AS14 Columbia University	`1.01ms` from New York City, US
101.67.139.68	AS4837 CHINA UNICOM China169 Backbone	`7.17ms` from Ningbo, CN
146.112.202.100	AS36692 Cisco OpenDNS, LLC	`1.00ms` from San Jose, US
73.11.147.84	AS7922 Comcast Cable Communications, LLC	`8.18ms` from Seattle, US
3.35.234.68	AS16509 Amazon.com, Inc.	`0.91ms` from Seoul, KR
125.186.53.116	AS17858 LG POWERCOMM	`1.87ms` from Seoul, KR
183.98.126.68	AS4766 Korea Telecom	`1.35ms` from Seoul, KR
36.36.180.228	AS17962 ShenZhen Topway Video Communication Co. Ltd	`5.06ms` from Shenzhen, CN
58.21.2.84	AS4837 CHINA UNICOM China169 Backbone	`2.50ms` from Changchun, CN
97.84.196.228	AS20115 Charter Communications LLC	`10.38ms` from Chicago, US
63.143.35.164	AS46475 Limestone Networks, Inc.	`0.26ms` from Dallas, US

Traceroute

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

traceroute -a -n -q1 -f3 -m7 203.229.140.31

traceroute to 203.229.140.31 (203.229.140.31): 7 hops max, 52 byte packets

3 [AS174] 130.117.1.150 18.274 ms

4 [AS174] 154.54.94.45 79.355 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Derby, GB

On February 7th 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.

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