203.231.236.0/24

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 203.231.236.0/24

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 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
105.98.132.104	AS36947 Telecom Algeria	`10.55ms` from Algiers, DZ
77.166.154.72	AS1136 KPN B.V.	`1.18ms` from Amsterdam, NL
86.90.98.200	AS1136 KPN B.V.	`1.53ms` from Amsterdam, NL
51.145.130.88	AS8075 Microsoft Corporation	`0.21ms` from Amsterdam, NL
162.246.168.248	AS29986 Gold Lasso, Inc.	`1.52ms` from Ashburn, US
70.22.184.88	AS701 Verizon Business	`2.08ms` from Boston, US
136.112.49.152	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
93.243.30.88	AS3320 Deutsche Telekom AG	`14.64ms` from Frankfurt am Main, DE
193.15.188.248	AS1257 Tele2 Sverige AB	`0.67ms` from Goeteborg, SE
223.247.146.168	AS140527 China Telecom	`4.50ms` from Huai'an, CN
109.171.120.184	AS21127 Joint Stock Company TransTeleCom	`1.73ms` from Kemerovo, RU
86.150.90.88	AS2856 British Telecommunications PLC	`4.01ms` from London, GB
129.67.126.72	AS786 Jisc Services Limited	`3.18ms` from London, GB
24.24.148.168	AS20001 Charter Communications Inc	`5.09ms` from Los Angeles, US
89.222.128.120	AS34123 Netorn LLC	`1.17ms` from Moscow, RU
93.171.142.8	AS42704 Etalon+ Ltd.	`14.89ms` from Moscow, RU
223.214.235.72	AS4134 CHINANET-BACKBONE	`9.94ms` from Nanchang, CN
5.10.244.200	AS209242 Cloudflare London, LLC	`0.11ms` from Porto Alegre, BR
122.6.2.24	AS4134 CHINANET-BACKBONE	`8.26ms` from Qingdao, CN
187.21.189.72	AS28573 Claro NXT Telecomunicacoes Ltda	`5.41ms` from Sao Paulo, BR
4.172.11.232	AS8075 Microsoft Corporation	`0.17ms` from Toronto, CA
77.236.85.216	AS41034 Ltd. "SPA"Impulse"	`8.92ms` from Yekaterinburg, RU
99.170.228.232	AS7018 AT&T Enterprises, LLC	`18.10ms` from Atlanta, US
178.48.132.136	AS21334 One Hungary Ltd.	`7.02ms` from Budapest, HU
24.157.85.8	AS7992 Cogeco Connexion Inc.	`3.63ms` from Buffalo, US

Traceroute

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

traceroute -a -n -q1 -f2 -m6 203.231.236.91

traceroute to 203.231.236.91 (203.231.236.91): 6 hops max, 52 byte packets

2 [AS15694] 46.229.157.217 32.565 ms

3 [AS15694] 217.17.33.44 2.935 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Warsaw, PL

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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