203.243.221.0/24

AS23584 · PUSAN CABLE TV SYSTEM CO., LTD.

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Summary

Country	South Korea
Domain
ASN	AS23584
Parent Range	203.243.128.0/17
Registry	KRNIC
ID	203.243.221.0-203.243.221.255

WHOIS Details

inetnum:            203.243.221.0 - 203.243.221.255
descr:              HCN-Pusan
network-type:       CUSTOMER
address:            Oncheon-dong Dongnae-gu Busan
zip-code:           47716
created:            2003-09-06
admin:              GENERATED-KRNIC-IP-MANAGER-CMG2124
country:            KR
source:             KRNIC

nic-hdl:            GENERATED-KRNIC-IP-MANAGER-CMG2124
person:             IP Manager
name:               IP Manager
phone:              +82-51-713-6110
e-mail:             cmg2124@hanmail.net
source:             KRNIC

Overlapping Ranges

BGP prefixes that contain 203.243.221.0/24

Range	ASN	Company	Num of IPs
203.243.128.0/17	AS23584	SEJONG NETWORKS	32,768
203.243.128.0/17	AS9848	SEJONG NETWORKS	32,768
203.243.128.0/17	AS141167	SEJONG NETWORKS	32,768

Nearby Ranges

BGP prefixes that overlap with 203.243.0.0/16

Range	ASN	Company	Num of IPs
203.243.128.0/17	AS141167	SEJONG NETWORKS	32,768
203.243.128.0/17	AS23584	SEJONG NETWORKS	32,768
203.243.128.0/17	AS9848	SEJONG NETWORKS	32,768
203.243.140.0/22	AS23584	HCN-Pusan	1,024
203.243.148.0/22	AS23584	HCN-Pusan	1,024
203.243.152.0/22	AS23584	HCN-Pusan	1,024
203.243.156.0/24	AS23584	HCN-Pusan	256
203.243.220.0/24	AS23584	HCN-Pusan	256
203.243.237.0/24	AS18300	Korea Electric Power Corporation	256
203.243.39.0/24	AS4766	Korea Telecom	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
203.243.221.1	AS23584 PUSAN CABLE TV SYSTEM CO., LTD.	`7.21ms` 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
195.130.116.200	AS8581 University Of Ioannina	`14.02ms` from Athens, GR
34.213.8.136	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
197.134.169.56	AS24835 Vodafone Data	`10.14ms` from Cairo, EG
40.128.36.232	AS7029 Windstream Communications LLC	`0.38ms` from Dallas, US
24.78.45.184	AS6327 Shaw Communications	`19.86ms` from Edmonton, CA
114.215.210.72	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`5.22ms` from Hangzhou, CN
203.56.46.56	AS58519 Cloud Computing Corporation	`1.16ms` from Hohhot, CN
219.249.109.24	AS9318 SK Broadband Co Ltd	`7.60ms` from Incheon, KR
88.10.63.200	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.71ms` from Madrid, ES
83.34.193.136	AS3352 TELEFONICA DE ESPANA S.A.U.	`12.63ms` from Madrid, ES
49.255.161.216	AS4826 Vocus Connect International Backbone	`0.53ms` from Perth, AU
52.204.242.168	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
69.106.46.200	AS7018 AT&T Enterprises, LLC	`3.08ms` from San Jose, US
73.97.89.152	AS7922 Comcast Cable Communications, LLC	`4.40ms` from Seattle, US
15.164.158.104	AS16509 Amazon.com, Inc.	`0.20ms` from Seoul, KR
221.165.189.136	AS4766 Korea Telecom	`1.29ms` from Seoul, KR
60.158.113.120	AS17676 SoftBank Corp.	`3.22ms` from Tokyo, JP
1.21.168.216	AS2519 ARTERIA Networks Corporation	`2.77ms` from Tokyo, JP
218.219.82.232	AS4721 JCOM Co., Ltd.	`0.73ms` from Tokyo, JP
209.29.226.152	AS7861 TELUS Communications Inc.	`2.08ms` from Toronto, CA
193.34.139.200	AS199510 WIFIMAX SWIATLOWSKI ZAREMBA sp.j.	`5.76ms` from Warsaw, PL
111.26.85.24	AS134810 China Mobile Group JiLin communications corporation	`2.83ms` from Changchun, CN
93.229.147.232	AS3320 Deutsche Telekom AG	`7.21ms` from Frankfurt am Main, DE
194.6.209.72	AS47447 23M GmbH	`0.14ms` from Frankfurt am Main, DE
3.36.61.136	AS16509 Amazon.com, Inc.	`0.15ms` 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 203.243.221.89

traceroute to 203.243.221.89 (203.243.221.89): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.44 0.069 ms

2 [] 139.150.100.233 0.806 ms

3 [] 139.150.100.36 4.908 ms

4 [AS7562] 111.118.20.253 1.966 ms

5 [AS7562] 111.118.20.74 10.087 ms

6 *

7 *

8 [AS23584] 203.243.221.89 8.744 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.

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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