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:        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 203.229.128.0/20

Range	ASN	Company	Num of IPs
203.229.128.0/17	AS10162	Korea Telecom	32,768
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

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	skt-urlweb.live	15
203.229.136.45	xn--he5ba39ni9t.net	2
203.229.136.111	kucrf.org	1
203.229.136.43	snuhnanum.com	1
203.229.138.191	smicuecrf.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

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

IP Address	ASN	Details
203.229.138.7	AS10162 SNUH	`1.47ms` from Seoul, KR
203.229.137.15	AS10162 SNUH	`1.45ms` from Seoul, KR
203.229.141.3	AS10162 SNUH	`1.65ms` from Seoul, KR
203.229.136.7	AS10162 SNUH	`1.36ms` 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
209.234.46.36	AS15227 LUMOS Networks, Inc.	`10.30ms` from Ashburn, US
40.120.165.180	AS8075 Microsoft Corporation	`0.29ms` from Des Moines, US
138.68.90.84	AS14061 DigitalOcean, LLC	`0.19ms` from Frankfurt am Main, DE
93.237.47.228	AS3320 Deutsche Telekom AG	`8.57ms` from Frankfurt am Main, DE
39.35.157.4	AS17557 Pakistan Telecommunication Company Limited	`7.60ms` from Lahore, PK
188.127.100.100	AS42560 Telemach BH d.o.o. Sarajevo	`5.06ms` from Novi Travnik, BA
179.104.70.52	AS53006 ALGAR TELECOM S/A	`10.11ms` from Osasco, BR
88.167.218.52	AS12322 Free SAS	`12.92ms` from Paris, FR
20.252.101.132	AS8075 Microsoft Corporation	`0.30ms` from Quincy, US
54.151.38.52	AS16509 Amazon.com, Inc.	`0.13ms` from San Jose, US
182.170.81.212	AS2527 Sony Network Communications Inc.	`5.44ms` from Tokyo, JP
111.20.14.100	AS140105 Shaanxi Mobile Communication Company Limited	`0.58ms` from Xi'an, CN
78.54.170.68	AS6805 Telefonica Germany GmbH & Co.OHG	`3.15ms` from Berlin, DE
76.155.73.196	AS7922 Comcast Cable Communications, LLC	`2.48ms` from Denver, US
81.2.116.116	AS20712 Andrews & Arnold Ltd	`1.89ms` from London, GB
94.1.6.4	AS5607 Sky UK Limited	`4.75ms` from London, GB
23.1.249.132	AS16625 Akamai Technologies, Inc.	`0.14ms` from Madrid, ES
85.46.145.244	AS3269 Telecom Italia S.p.A.	`16.31ms` from Milan, IT
125.114.243.68	AS4134 CHINANET-BACKBONE	`4.35ms` from Ningbo, CN
78.140.29.68	AS31357 Limited Company Information and Consulting Agency	`5.00ms` from Novosibirsk, RU
111.111.77.196	AS2516 KDDI CORPORATION	`9.68ms` from Osaka, JP
86.245.33.36	AS3215 Orange S.A.	`1.69ms` from Paris, FR
200.222.168.180	AS7738 V tal	`8.54ms` from Rio de Janeiro, BR
73.12.203.212	AS7922 Comcast Cable Communications, LLC	`13.33ms` from Santa Clara, US
115.141.175.164	AS17858 LG POWERCOMM	`1.69ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f4 -m8 203.229.134.215

traceroute to 203.229.134.215 (203.229.134.215): 8 hops max, 52 byte packets

4 [] 201.16.69.92 20.53 ms

5 [] 201.16.2.157 125.994 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Novo Hamburgo, BR

On September 11th 2025

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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