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	AS9973	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	AS131866	SEJONG NETWORKS	65,536

Nearby Ranges

BGP prefixes that overlap with 203.231.0.0/16

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 87 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	ybmcall.com	15
203.231.233.213	englishnetzine.kr	11
203.231.233.244	ybmhrd.co.kr	7
203.231.233.185	ybmclass.com	7
203.231.233.187	ybmleader.com	6
203.231.233.212	mous.kr	4
203.231.233.240	ybmteachers.co.kr	4
203.231.233.184	ybmteacher.com	3
203.231.233.38	playnfun.co.kr	3
203.231.233.233	cnnthebiz.com	2
203.231.233.186	ybm1to1.com	2
203.231.233.163	sangga2000.com	2
203.231.233.47	kidsb.net	1
203.231.233.50	apache-kr.org	1
203.231.233.214	ybmallinall.co.kr	1
203.231.233.157	ybmcbt.co.kr	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.	`0.78ms` 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
37.223.241.120	AS12430 VODAFONE ESPANA S.A.U.	`4.74ms` from Barcelona, ES
105.191.71.104	AS36925 MEDITELECOM	`17.29ms` from Casablanca, MA
125.87.76.248	AS4134 CHINANET-BACKBONE	`2.82ms` from Chongqing, CN
3.73.185.200	AS16509 Amazon.com, Inc.	`0.19ms` from Frankfurt am Main, DE
165.73.228.200	AS328747 WAN 4 U cc	`2.07ms` from Johannesburg, ZA
89.42.111.184	AS61317 Hivelocity LLC	`0.43ms` from London, GB
180.194.1.216	AS9299 Philippine Long Distance Telephone Company	`15.60ms` from Manila, PH
44.209.190.168	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
79.52.138.72	AS3269 Telecom Italia S.p.A.	`4.79ms` from Rome, IT
115.2.243.216	AS4766 Korea Telecom	`1.80ms` from Seoul, KR
206.174.53.8	AS8047 GENERAL COMMUNICATION, INC.	`7.88ms` from Anchorage, US
2.84.54.56	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`10.76ms` from Athens, GR
51.79.109.72	AS16276 OVH SAS	`0.08ms` from Beauharnois, CA
91.243.122.200	AS59548 AXASOFT, a.s.	`0.65ms` from Bratislava, SK
197.53.149.232	AS8452 TE-AS	`4.14ms` from Cairo, EG
3.148.126.104	AS16509 Amazon.com, Inc.	`0.17ms` from Columbus, US
66.69.19.232	AS11427 Charter Communications Inc	`11.52ms` from Dallas, US
90.101.18.152	AS3215 Orange S.A.	`10.01ms` from Frankfurt am Main, DE
113.174.18.56	AS45899 VNPT Corp	`2.79ms` from Ho Chi Minh City, VN
219.79.217.136	AS4760 HKT Limited	`8.25ms` from Hong Kong, HK
67.67.34.248	AS7018 AT&T Enterprises, LLC	`5.84ms` from Kansas City, US
2.115.126.8	AS3269 Telecom Italia S.p.A.	`3.90ms` from Milan, IT
47.215.249.200	AS19108 Optimum	`13.18ms` from Phoenix, US
124.130.73.184	AS4837 CHINA UNICOM China169 Backbone	`9.23ms` from Qingdao, CN
52.2.183.184	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US

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 [AS15169] 108.170.241.37 0.748 ms

2 [AS15169] 142.251.199.60 0.986 ms

3 *

4 *

5 *

6 [AS4766] 112.191.127.27 2.21 ms

7 [AS4766] 112.191.127.135 1.808 ms

8 [AS4766] 121.156.121.86 1.625 ms

9 [AS17881] 203.231.233.62 1.823 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On November 14th 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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