203.229.128.0/17

AS4766 · Korea Telecom

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Summary

Country	South Korea
Domain	kt.com
ASN	AS4766
Registry	KRNIC
ID	KORNET-KR

WHOIS Details

inetnum:        203.229.128.0 - 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:        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 203.229.0.0/16

Range	ASN	Company	Num of IPs
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 127 domain names hosted across 39 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.229.165.232	hyundaicorp.com	50
203.229.190.175	haksanpub.kr	5
203.229.209.203	hcpharm.co.kr	3
203.229.175.89	sgic-test.com	3
203.229.176.194	e-gen.or.kr	3
203.229.200.56	cuk.ac.kr	2
203.229.155.49	kunmt.org	2
203.229.227.121	vga.co.kr	1
203.229.168.2	knia.or.kr	1
203.229.183.27	mokky.kr	1
203.229.188.9	platinum-s.co.kr	1
203.229.246.226	gcjoberp.com	1
203.229.154.17	mobilesafer.net	1
203.229.186.142	sjc-acs.com	1
203.229.238.2	woongjin.net	1
203.229.220.235	eggproduct.co.kr	1
203.229.168.79	e-insmarket.or.kr	1
203.229.177.61	handokit.co.kr	1
203.229.175.82	sgica.co.kr	1
203.229.241.124	thekoreimpact.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

7,627 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
203.229.209.139	AS4766 Korea Telecom	`0.74ms` from Incheon, KR
203.229.158.43	AS4766 Korea Telecom	`1.12ms` from Seoul, KR
203.229.175.46	AS4766 Korea Telecom	`0.97ms` from Seoul, KR
203.229.199.102	AS4766 Korea Telecom	`2.66ms` from Seoul, KR
203.229.176.10	AS4766 Korea Telecom	`0.94ms` from Seoul, KR
203.229.222.233	AS4766 Korea Telecom	`1.08ms` from Seoul, KR
203.229.215.254	AS4766 Korea Telecom	`1.28ms` from Seoul, KR
203.229.177.254	AS4766 Korea Telecom	`1.00ms` from Seoul, KR
203.229.168.145	AS4766 Korea Telecom	`0.80ms` from Seoul, KR
203.229.174.126	AS4766 Korea Telecom	`1.17ms` from Seoul, KR
203.229.235.34	AS4766 Korea Telecom	`1.22ms` from Seoul, KR
203.229.232.254	AS4766 Korea Telecom	`1.13ms` from Seoul, KR
203.229.182.159	AS4766 Korea Telecom	`1.15ms` from Seoul, KR
203.229.153.157	AS4766 Korea Telecom	`0.94ms` from Seoul, KR
203.229.254.174	AS4766 Korea Telecom	`1.28ms` from Seoul, KR
203.229.220.134	AS4766 Korea Telecom	`1.08ms` from Seoul, KR
203.229.212.254	AS4766 Korea Telecom	`1.21ms` from Seoul, KR
203.229.213.205	AS4766 Korea Telecom	`1.22ms` from Seoul, KR
203.229.243.162	AS4766 Korea Telecom	`1.32ms` from Seoul, KR
203.229.204.204	AS4766 Korea Telecom	`1.92ms` from Incheon, KR
203.229.238.62	AS4766 Korea Telecom	`1.01ms` from Seoul, KR
203.229.194.129	AS4766 Korea Telecom	`2.32ms` from Seoul, KR
203.229.208.43	AS4766 Korea Telecom	`1.43ms` from Seoul, KR
203.229.236.254	AS4766 Korea Telecom	`1.08ms` from Seoul, KR
203.229.187.1	AS4766 Korea Telecom	`1.69ms` 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
82.72.137.1	AS33915 Vodafone Libertel B.V.	`5.12ms` from Amsterdam, NL
83.85.23.1	AS33915 Vodafone Libertel B.V.	`1.28ms` from Amsterdam, NL
108.44.244.1	AS701 Verizon Business	`2.50ms` from Ashburn, US
97.244.135.81	AS6167 Verizon Business	`16.09ms` from Atlanta, US
107.198.66.241	AS7018 AT&T Enterprises, LLC	`2.44ms` from Atlanta, US
67.140.144.1	AS7029 Windstream Communications LLC	`8.25ms` from Atlanta, US
120.244.112.1	AS56048 China Mobile Communicaitons Corporation	`5.63ms` from Beijing, CN
34.222.43.33	AS16509 Amazon.com, Inc.	`0.15ms` from Boardman, US
100.0.171.1	AS701 Verizon Business	`1.55ms` from Boston, US
82.155.139.1	AS3243 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`1.57ms` from Braga, PT
181.4.106.1	AS7303 Telecom Argentina S.A.	`4.59ms` from Buenos Aires, AR
70.75.176.1	AS6327 Shaw Communications	`7.17ms` from Calgary, CA
209.89.213.1	AS852 TELUS Communications Inc.	`1.31ms` from Calgary, CA
197.145.199.161	AS36884 Wana Corporate	`4.02ms` from Casablanca, MA
122.142.152.1	AS4837 CHINA UNICOM China169 Backbone	`5.39ms` from Changchun, CN
119.4.213.1	AS4837 CHINA UNICOM China169 Backbone	`3.44ms` from Chengdu, CN
59.163.106.129	AS4755 TATA Communications formerly VSNL is Leading ISP	`0.62ms` from Chennai, IN
198.23.153.113	AS36352 HostPapa	`0.24ms` from Chicago, US
96.164.135.177	AS393232 Comcast Cable Communications, LLC	`0.04ms` from Chicago, US
14.243.152.193	AS45899 VNPT Corp	`6.25ms` from Da Nang, VN
172.173.64.113	AS8075 Microsoft Corporation	`0.19ms` from Des Moines, US
85.93.28.1	AS197549 GHOSTnet GmbH	`0.58ms` from Frankfurt am Main, DE
31.150.122.49	AS9145 EWE TEL GmbH	`6.62ms` from Frankfurt am Main, DE
43.159.19.1	AS132203 Tencent Building, Kejizhongyi Avenue	`0.18ms` from Hong Kong, HK
218.39.181.49	AS9318 SK Broadband Co Ltd	`1.67ms` from Incheon, KR

Traceroute

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

traceroute -a -n -q1 203.229.182.159

traceroute to 203.229.182.159 (203.229.182.159): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.45 0.089 ms

2 *

3 *

4 *

5 [AS4766] 112.174.120.78 1.663 ms

6 *

7 [AS4766] 203.229.182.159 1.36 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On January 19th 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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