203.231.0.0/16

AS9848 · SEJONG NETWORKS

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Summary

Country	South Korea
Domain	sejongnetworks.com
ASN	AS9848
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 are contained by 203.231.0.0/16

Range	ASN	Company	Num of IPs
203.231.131.0/24	AS38676	FLEXNET	256
203.231.132.0/24	AS38676	FLEXNET	256
203.231.133.0/24	AS38676	FLEXNET	256
203.231.238.0/24	AS17881	INET	256
203.231.50.0/24	AS17837	SAMSUNG PHARN CO. LTD	256
203.231.51.0/24	AS17837	Sovik	256
203.231.129.0/24	AS38676	FLEXNET	256
203.231.130.0/24	AS38676	FLEXNET	256

Nearby Ranges

BGP prefixes that overlap with 203.0.0.0/8

Range	ASN	Company	Num of IPs
203.40.0.0/13	AS1221	Telstra Limited	524,288
203.48.0.0/14	AS1221	Telstra Limited	262,144
203.36.0.0/14	AS1221	Telstra Limited	262,144
203.52.0.0/15	AS1221	Telstra Limited	131,072
203.102.0.0/15	AS703	Verizon Australia PTY Limited	131,072
203.177.0.0/16	AS4775	Globe Telecom	65,536
203.200.0.0/16	AS4755	Internet Service Provider	65,536
203.67.0.0/16	AS4780	Digital United Inc.	65,536
203.151.0.0/16	AS4618	Internet Thailand Company Limited	65,536
203.75.0.0/16	AS3462	Data Communication Business Group,	65,536
203.59.0.0/16	AS4739	iiNet Limited	65,536
203.197.0.0/16	AS4755	Internet Service Provider	65,536
203.155.0.0/16	AS23644	KSC Commercial Internet Co. Ltd.	65,536
203.225.0.0/16	AS4766	KOLON BENIT	65,536
203.154.0.0/16	AS4618	Internet Thailand Company Limited	65,536
203.138.0.0/16	AS2514	NTT PC Communications,Inc.	65,536
203.177.0.0/16	AS17894	Globe Telecom	65,536
203.63.0.0/16	AS2764	AAPT Limited	65,536
203.74.0.0/16	AS3462	Data Communication Business Group,	65,536
203.200.0.0/16	AS40009	Internet Service Provider	65,536
203.162.0.0/16	AS45899	Vietnam Posts and Telecommunications Group	65,536
203.206.0.0/16	AS4739	iiNet Limited	65,536
203.177.0.0/16	AS24451	Globe Telecom	65,536
203.155.0.0/16	AS17478	KSC Commercial Internet Co. Ltd.	65,536
203.35.0.0/16	AS1221	Telstra Limited	65,536
203.177.0.0/16	AS132595	Globe Telecom	65,536
203.68.0.0/16	AS1659	Taiwan Academic Network	65,536
203.218.0.0/16	AS4760	PCCW Limited	65,536
203.227.0.0/16	AS23584	SEJONG NETWORKS	65,536
203.180.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
203.151.0.0/16	AS133529	Internet Thailand Company Limited	65,536
203.177.0.0/16	AS24179	Globe Telecom	65,536
203.54.0.0/16	AS1221	Telstra Limited	65,536
203.155.0.0/16	AS135620	KSC Commercial Internet Co. Ltd.	65,536
203.69.0.0/16	AS137280	Data Communication Business Group,	65,536
203.108.0.0/16	AS12234	OzEmail Pty Ltd	65,536
203.64.0.0/16	AS1659	Taiwan Academic Network	65,536
203.69.0.0/16	AS3462	Data Communication Business Group,	65,536
203.74.0.0/16	AS131660	Data Communication Business Group,	65,536
203.125.0.0/16	AS3758	SingNet Pte Ltd	65,536
203.85.0.0/16	AS4058	CITIC Telecom International CPC Limited	65,536
203.155.0.0/16	AS45197	KSC Commercial Internet Co. Ltd.	65,536
203.177.0.0/16	AS132199	Globe Telecom	65,536
203.66.0.0/16	AS3462	Data Communication Business Group,	65,536
203.182.0.0/16	AS4673	NTT DATA CORPORATION	65,536

Hosted domains

There are 562 domain names hosted across 117 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.231.63.12	onlinenews.co.kr	5
203.231.170.41	wooriir.com	3
203.231.182.23	taegwangfandb.com	2
203.231.124.161	space111.co.kr	2
203.231.156.169	ipo.net	2
203.231.45.1	kpartner.co.kr	1
203.231.63.38	pdamark.co.kr	1
203.231.10.125	joindaou.com	1
203.231.170.53	wooriepro.com	1
203.231.31.33	honorsville.co.kr	1
203.231.11.102	postgres.co.kr	1
203.231.31.36	kne.co.kr	1
203.231.31.46	honorsville.co.kr	1
203.231.170.50	woorimuseum.com	1
203.231.145.35	kyec.co.kr	1
203.231.115.234	powerit.co.kr	1
203.231.29.131	hifg.co.kr	1
203.231.127.37	heung-a.co.kr	1
203.231.69.189	hanna-egmardern.info	1
203.231.21.20	mdm-family.com	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

Read more

Pingable IPs

4,676 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
203.231.225.253	AS17881 Inet Hosting, Inc.	`0.89ms` from Seoul, KR
203.231.12.197	AS18309 Korea VAn Service Co.LTD	`1.81ms` from Seoul, KR
203.231.254.18	AS9848 SEJONG NETWORKS	`0.63ms` from Seoul, KR
203.231.132.1	AS38676 flexnetworks	`0.79ms` from Incheon, KR
203.231.233.184	AS17881 Inet Hosting, Inc.	`0.79ms` from Seoul, KR
203.231.238.226	AS17881 Inet Hosting, Inc.	`0.96ms` from Seoul, KR
203.231.153.7	AS18300 KEPCO	`5.42ms` from Seoul, KR
203.231.182.1	AS9848 SEJONG NETWORKS	`6.52ms` from Seoul, KR
203.231.244.228	AS9848 SEJONG NETWORKS	`0.47ms` from Seoul, KR
203.231.226.190	AS17881 Inet Hosting, Inc.	`0.96ms` from Seoul, KR
203.231.100.131	AS9848 SEJONG NETWORKS	`2.26ms` from Seoul, KR
203.231.110.54	AS9848 SEJONG NETWORKS	`0.58ms` from Seoul, KR
203.231.86.205	AS9848 SEJONG NETWORKS	`0.74ms` from Seoul, KR
203.231.106.18	AS9848 SEJONG NETWORKS	`0.49ms` from Seoul, KR
203.231.101.166	AS9848 SEJONG NETWORKS	`3.65ms` from Seoul, KR
203.231.108.57	AS9848 SEJONG NETWORKS	`36.49ms` from Hong Kong, HK
203.231.34.116	AS9848 SEJONG NETWORKS	`6.66ms` from Seoul, KR
203.231.9.237	AS9848 SEJONG NETWORKS	`5.40ms` from Seoul, KR
203.231.61.1	AS9848 SEJONG NETWORKS	`0.81ms` from Seoul, KR
203.231.131.1	AS38676 flexnetworks	`1.01ms` from Incheon, KR
203.231.45.1	AS9848 SEJONG NETWORKS	`7.27ms` from Incheon, KR
203.231.29.172	AS9848 SEJONG NETWORKS	`3.85ms` from Seoul, KR
203.231.32.81	AS9848 SEJONG NETWORKS	`1.10ms` from Seoul, KR
203.231.3.1	AS9848 SEJONG NETWORKS	`1.74ms` from Seoul, KR
203.231.151.18	AS18305 POSCO DX	`3.03ms` 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
137.101.23.64	AS12430 VODAFONE ESPANA S.A.U.	`3.61ms` from Barcelona, ES
9.205.54.32	AS8075 Microsoft Corporation	`1.06ms` from Copenhagen, DK
5.254.161.240	AS199204 Webmate Internet Services Ltd.	`0.46ms` from London, GB
87.24.129.0	AS3269 Telecom Italia S.p.A.	`7.75ms` from Milan, IT
67.23.50.80	AS36086 Telx	`0.96ms` from New York City, US
52.197.186.240	AS16509 Amazon.com, Inc.	`0.15ms` from Tokyo, JP
60.93.140.32	AS17676 SoftBank Corp.	`2.60ms` from Tokyo, JP
203.83.231.208	AS134768 CHINANET SHAANXI province Cloud Base network	`2.33ms` from Xi'an, CN
47.95.33.160	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.01ms` from Beijing, CN
78.30.135.192	AS8771 YUnet International d.o.o.	`1.64ms` from Belgrade, RS
95.103.226.96	AS6855 Slovak Telekom, a.s.	`4.37ms` from Bratislava, SK
117.252.56.0	AS9829 National Internet Backbone	`13.81ms` from Chennai, IN
45.236.244.0	AS263732 PANDA CONECT S.A.	`14.99ms` from Curitiba, BR
82.0.124.224	AS5089 Virgin Media Limited	`11.46ms` from Maidenhead, GB
90.248.161.96	AS5378 Vodafone Limited	`3.26ms` from Manchester, GB
179.144.175.32	AS26599 TELEFÔNICA BRASIL S.A	`7.44ms` from Rio de Janeiro, BR
115.6.80.144	AS4766 Korea Telecom	`7.23ms` from Seoul, KR
5.188.222.0	AS134351 Leaseweb Japan K.K.	`0.26ms` from Tokyo, JP
165.22.239.64	AS14061 DigitalOcean, LLC	`0.91ms` from Toronto, CA
31.41.168.0	AS197811 PL.2012+ Sp. z o.o.	`0.39ms` from Warsaw, PL
217.247.1.160	AS3320 Deutsche Telekom AG	`3.92ms` from Berlin, DE
23.205.89.48	AS20940 Akamai International B.V.	`0.93ms` from Chicago, US
94.191.70.80	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.29ms` from Chongqing, CN
68.34.57.176	AS7922 Comcast Cable Communications, LLC	`6.67ms` from Flint, US
129.148.169.224	AS31898 Oracle Corporation	`0.14ms` from Hyderabad, IN

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 203.231.190.22

traceroute to 203.231.190.22 (203.231.190.22): 6 hops max, 52 byte packets

2 [AS52000] 185.15.209.62 1.056 ms

3 [AS52000] 185.15.209.20 1.035 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On January 19th 2026

What are IP address ranges?

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