203.231.233.0/24

AS17881 · Inet Hosting, Inc.

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Summary

Country	South Korea
Domain	sejongnetworks.com
ASN	AS17881
Parent Range	203.231.0.0/16
Registry	APNIC
ID	SHINBIRO

WHOIS Details

inetnum:        203.231.0.0 - 203.231.255.255
netname:        SEJONG
descr:          SEJONG NETWORKS
country:        KR
admin-c:        IM686-AP
tech-c:         IM686-AP
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2024-09-10T08:50:05Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        Jeollanam-do Naju-si Jinheung-gil
e-mail:         irt@nic.or.kr
abuse-mailbox:  irt@nic.or.kr
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
remarks:        irt@nic.or.kr was validated on 2020-04-09
mnt-by:         MNT-KRNIC-AP
last-modified:  2021-06-15T06:21:49Z
source:         APNIC

person:         IP Manager
address:        12 Gwacheon-daero 7-gil, Gwacheon-si, Gyeonggi-do
country:        KR
phone:          +82-2-1688-2200
e-mail:         ip@sejongnetworks.com
nic-hdl:        IM686-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2024-09-10T08:42:02Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 203.231.233.0/24

Range	ASN	Company	Num of IPs
203.231.0.0/16	AS131866	SEJONG NETWORKS	65,536
203.231.0.0/16	AS17837	SEJONG NETWORKS	65,536
203.231.0.0/16	AS17881	SEJONG NETWORKS	65,536
203.231.0.0/16	AS18300	SEJONG NETWORKS	65,536
203.231.0.0/16	AS18305	SEJONG NETWORKS	65,536
203.231.0.0/16	AS18309	SEJONG NETWORKS	65,536
203.231.0.0/16	AS23593	SEJONG NETWORKS	65,536
203.231.0.0/16	AS3608	SEJONG NETWORKS	65,536
203.231.0.0/16	AS38676	SEJONG NETWORKS	65,536
203.231.0.0/16	AS9684	SEJONG NETWORKS	65,536
203.231.0.0/16	AS9848	SEJONG NETWORKS	65,536
203.231.0.0/16	AS9973	SEJONG NETWORKS	65,536

Hosted domains

There are 90 domain names hosted across 17 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.231.233.137	ybmnet.co.kr	20
203.231.233.195	bizhanja.kr	15
203.231.233.213	ybmbooks.kr	11
203.231.233.185	ybmclass.com	7
203.231.233.244	ybmmos.com	7
203.231.233.187	ybmuniv.co.kr	6
203.231.233.233	ybmedu.com	5
203.231.233.184	ybmteachers.com	4
203.231.233.212	mous.or.kr	4
203.231.233.240	ybmteacher.co.kr	4
203.231.233.38	playnfun.net	3
203.231.233.163	sangga2000.com	2
203.231.233.186	ybm1to1.com	2
203.231.233.157	ybmcbt.co.kr	1
203.231.233.50	apache-kr.org	1
203.231.233.214	ybmallinall.co.kr	1
203.231.233.47	kidsb.net	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

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Pingable IPs

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

IP Address	ASN	Details
203.231.233.184	AS17881 Inet Hosting, Inc.	`0.94ms` 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
216.49.13.88	AS3737 PenTeleData Inc.	`15.55ms` from Ashburn, US
79.101.133.88	AS8400 TELEKOM SRBIJA a.d.	`1.93ms` from Belgrade, RS
104.114.85.8	AS16625 Akamai Technologies, Inc.	`0.24ms` from Bengaluru, IN
91.22.58.40	AS3320 Deutsche Telekom AG	`10.35ms` from Frankfurt am Main, DE
43.135.100.88	AS132203 Tencent Building, Kejizhongyi Avenue	`0.39ms` from Hong Kong, HK
104.232.150.120	AS22552 eSited Solutions	`0.42ms` from Los Angeles, US
80.26.203.152	AS3352 TELEFONICA DE ESPANA S.A.U.	`2.81ms` from Madrid, ES
88.23.3.232	AS3352 TELEFONICA DE ESPANA S.A.U.	`7.78ms` from Madrid, ES
199.231.33.88	AS11086 Pitney Bowes Incorporated	`1.35ms` from Phoenix, US
118.41.136.56	AS4766 Korea Telecom	`4.63ms` from Seoul, KR
40.72.180.24	AS58593 Shanghai Blue Cloud Technology Co.,Ltd	`2.77ms` from Shanghai, CN
52.163.61.120	AS8075 Microsoft Corporation	`0.60ms` from Singapore, SG
58.48.230.200	AS4134 CHINANET-BACKBONE	`1.34ms` from Wuhan, CN
24.3.170.24	AS7922 Comcast Cable Communications, LLC	`10.45ms` from Ashburn, US
69.60.169.8	AS4452 ZCORUM	`1.67ms` from Atlanta, US
186.128.88.24	AS22927 Telefonica de Argentina	`1.94ms` from Buenos Aires, AR
18.67.205.56	AS16509 Amazon.com, Inc.	`0.66ms` from Mumbai, IN
49.194.178.200	AS4804 Microplex PTY LTD	`1.93ms` from Perth, AU
18.204.16.8	AS14618 Amazon.com, Inc.	`0.54ms` from Reston, US
3.81.90.232	AS14618 Amazon.com, Inc.	`0.58ms` from Reston, US
178.70.122.136	AS12389 PJSC Rostelecom	`1.97ms` from Saint Petersburg, RU
14.41.255.56	AS4766 Korea Telecom	`5.62ms` from Seoul, KR
212.47.169.88	AS6730 Sunrise GmbH	`1.17ms` from Zuerich, CH
69.61.108.88	AS22653 Cyber Wurx LLC	`0.47ms` from Atlanta, US
122.100.231.248	AS4609 Companhia de Telecomunicacoes de Macau SARL	`2.90ms` from Hong Kong, HK

Traceroute

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

traceroute -a -n -q1 203.231.233.62

traceroute to 203.231.233.62 (203.231.233.62): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.59 0.072 ms

2 [AS4766] 218.145.32.254 0.535 ms

3 *

4 *

5 *

6 [AS4766] 112.191.127.91 1.17 ms

7 [AS4766] 112.191.127.133 0.886 ms

8 [AS4766] 121.156.121.66 1.455 ms

9 [AS17881] 203.231.233.62 1.394 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

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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