203.240.238.0/23

AS4670 · Shinbiro

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Summary

Country	South Korea
Domain	sejongnetworks.com
ASN	AS4670
Parent Range	203.240.192.0/18
Registry	KRNIC
ID	203.240.238.0-203.240.239.255

WHOIS Details

inetnum:            203.240.238.0 - 203.240.239.255
descr:              SEJONG NETWORKS
network-type:       INFRA
address:            12 Gwacheon-daero 7-gil, Gwacheon-si, Gyeonggi-do
zip-code:           13840
created:            1995-10-26
admin:              GENERATED-KRNIC-IP-MANAGER-IP
country:            KR
source:             KRNIC

nic-hdl:            GENERATED-KRNIC-IP-MANAGER-IP
person:             IP Manager
name:               IP Manager
phone:              +82-2-3281-3453
e-mail:             ip@haion.net
source:             KRNIC

Overlapping Ranges

BGP prefixes that contain 203.240.238.0/23

Range	ASN	Company	Num of IPs
203.240.192.0/18	AS4670	SEJONG NETWORKS	16,384

Nearby Ranges

BGP prefixes that overlap with 203.240.0.0/16

Range	ASN	Company	Num of IPs
203.240.192.0/18	AS4670	SEJONG NETWORKS	16,384
203.240.128.0/19	AS4670	SEJONG NETWORKS	8,192
203.240.128.0/19	AS9848	SEJONG NETWORKS	8,192
203.240.209.0/24	AS4670	SEJONG NETWORKS	256
203.240.221.0/24	AS4670	SEJONG NETWORKS	256
203.240.222.0/24	AS4670	SEJONG NETWORKS	256
203.240.234.0/24	AS4670	SEJONG NETWORKS	256
203.240.235.0/24	AS4670	SEJONG NETWORKS	256
203.240.236.0/24	AS4670	SEJONG NETWORKS	256
203.240.253.0/24	AS4670	SEJONG NETWORKS	256
203.240.128.0/24	AS9645	HYUNDAI International Merchant Bank	256
203.240.132.0/24	AS9848	SEJONG NETWORKS	256
203.240.148.0/24	AS9848	SEJONG NETWORKS	256
203.240.244.0/24	AS9848	SEJONG NETWORKS	256
203.240.191.0/24	AS3786	Korea Internet Security Agency	256
203.240.159.0/24	AS9980	Hyundai Information Technology Co. Ltd.	256
203.240.149.0/24	AS45977	Canon Korea Business Solution	256
203.240.193.0/24	AS4670	SEJONG NETWORKS	256
203.240.208.0/24	AS4670	SEJONG NETWORKS	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
50.103.130.151	AS5650 Frontier Communications of America, Inc.	`10.96ms` from Chicago, US
37.84.48.135	AS3320 Deutsche Telekom AG	`18.58ms` from Frankfurt am Main, DE
2.35.141.151	AS30722 Fastweb SpA	`11.31ms` from Frosinone, IT
129.16.175.199	AS2841 Chalmers University of Technology	`0.68ms` from Goeteborg, SE
18.60.204.167	AS16509 Amazon.com, Inc.	`1.45ms` from Hyderabad, IN
222.234.222.231	AS9318 SK Broadband Co Ltd	`0.92ms` from Incheon, KR
116.42.214.87	AS17858 LG POWERCOMM	`1.67ms` from Seoul, KR
16.171.9.23	AS16509 Amazon.com, Inc.	`1.04ms` from Stockholm, SE
103.184.10.7	AS146980 Tokyo Metropolitan College of Industrial Technology Infomation System Engineering Course	`1.74ms` from Tokyo, JP
69.234.199.167	AS135629 Ningxia West Cloud Data Technology Co.Ltd.	`0.50ms` from Zhongwei, CN
47.73.4.135	AS12663 VODAFONE GROUP	`4.05ms` from Amsterdam, NL
183.172.45.199	AS4538 China Education and Research Network Center	`5.11ms` from Beijing, CN
201.253.247.183	AS7303 Telecom Argentina S.A.	`1.52ms` from Cordoba, AR
185.203.217.119	AS51167 Contabo GmbH	`1.99ms` from Frankfurt am Main, DE
60.12.97.215	AS4837 CHINA UNICOM China169 Backbone	`5.31ms` from Hangzhou, CN
175.107.192.135	AS24440 Cyber Internet Services Pakistan	`13.07ms` from Muscat, OM
23.207.9.215	AS16625 Akamai Technologies, Inc.	`0.89ms` from New York City, US
68.195.172.199	AS6128 Cablevision Systems Corp.	`2.23ms` from New York City, US
114.176.68.71	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.19ms` from Osaka, JP
169.212.161.87	AS4766 Korea Telecom	`6.82ms` from Seoul, KR
85.187.100.247	AS8866 Vivacom Bulgaria EAD	`2.80ms` from Sofia, BG
104.191.103.231	AS7018 AT&T Enterprises, LLC	`6.33ms` from Atlanta, US
34.221.217.87	AS16509 Amazon.com, Inc.	`0.33ms` from Boardman, US
34.14.84.87	AS396982 Google LLC	`0.16ms` from Brussels, BE
102.184.155.103	AS24835 Vodafone Data	`12.14ms` from Cairo, EG

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 203.240.239.108

traceroute to 203.240.239.108 (203.240.239.108): 8 hops max, 52 byte packets

4 [AS3356] 4.71.141.82 150.258 ms

5 [] 69.194.169.73 150.179 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Charlotte, US

On March 13th 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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