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
203.155.0.0/16	AS135620	KSC Commercial Internet Co. Ltd.	65,536
203.227.0.0/16	AS9848	SEJONG NETWORKS	65,536
203.151.0.0/16	AS133529	Internet Thailand Company Limited	65,536
203.74.0.0/16	AS131660	Data Communication Business Group,	65,536
203.155.0.0/16	AS23644	KSC Commercial Internet Co. Ltd.	65,536
203.61.0.0/16	AS703	Verizon Australia PTY Limited	65,536
203.219.0.0/16	AS7545	TPG Internet Pty Ltd.	65,536
203.157.0.0/16	AS9649	Ministry of Public Health, Thailand	65,536
203.227.0.0/16	AS9973	SEJONG NETWORKS	65,536
203.177.0.0/16	AS4775	Globe Telecom	65,536
203.63.0.0/16	AS2764	AAPT Limited	65,536
203.151.0.0/16	AS56223	Internet Thailand Company Limited	65,536
203.73.0.0/16	AS4780	Digital United Inc.	65,536
203.177.0.0/16	AS24451	Globe Telecom	65,536
203.108.0.0/16	AS703	OzEmail Pty Ltd	65,536
203.197.0.0/16	AS4755	Internet Service Provider	65,536
203.70.0.0/16	AS4780	Digital United Inc.	65,536
203.67.0.0/16	AS4780	Digital United Inc.	65,536
203.155.0.0/16	AS7693	KSC Commercial Internet Co. Ltd.	65,536
203.155.0.0/16	AS45197	KSC Commercial Internet Co. Ltd.	65,536
203.106.0.0/16	AS4788	TM TECHNOLOGY SERVICES SDN. BHD.	65,536
203.59.0.0/16	AS7545	iiNet Limited	65,536
203.162.0.0/16	AS45899	Vietnam Posts and Telecommunications Group	65,536
203.200.0.0/16	AS4755	Internet Service Provider	65,536
203.59.0.0/16	AS4802	iiNet Limited	65,536
203.155.0.0/16	AS17478	KSC Commercial Internet Co. Ltd.	65,536
203.206.0.0/16	AS7545	iiNet Limited	65,536
203.182.0.0/16	AS4673	NTT DATA CORPORATION	65,536
203.59.0.0/16	AS4739	iiNet Limited	65,536
203.206.0.0/16	AS4739	iiNet Limited	65,536
203.138.0.0/16	AS2514	NTT PC Communications,Inc.	65,536
203.177.0.0/16	AS132199	Globe Telecom	65,536
203.180.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
203.68.0.0/16	AS1659	Taiwan Academic Network	65,536
203.64.0.0/16	AS1659	Taiwan Academic Network	65,536
203.200.0.0/16	AS40009	Internet Service Provider	65,536
203.75.0.0/16	AS3462	Data Communication Business Group,	65,536
203.177.0.0/16	AS132595	Globe Telecom	65,536
203.85.0.0/16	AS4058	CITIC Telecom International CPC Limited	65,536
203.108.0.0/16	AS12234	OzEmail Pty Ltd	65,536

Hosted domains

There are 561 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	open24.co.kr	5
203.231.170.41	wooriir.net	3
203.231.124.161	space111.co.kr	2
203.231.182.23	ssanikka.com	2
203.231.156.169	ipo.net	2
203.231.21.20	mdm-family.com	1
203.231.115.243	en-core.info	1
203.231.31.46	honorsville.co.kr	1
203.231.31.36	kne.co.kr	1
203.231.127.37	heung-a.co.kr	1
203.231.69.189	hanna-egmardern.info	1
203.231.11.102	postgres.co.kr	1
203.231.115.234	powerit.co.kr	1
203.231.45.1	kpartner.co.kr	1
203.231.10.125	joindaou.com	1
203.231.145.35	kyec.co.kr	1
203.231.29.131	hifg.co.kr	1
203.231.29.151	hifg-tk.co.kr	1
203.231.63.38	pdamark.co.kr	1
203.231.200.1	vi-nyl.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

5,383 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
203.231.88.29	AS9848 SEJONG NETWORKS	`0.68ms` from Seoul, KR
203.231.5.2	AS9848 SEJONG NETWORKS	`4.85ms` from Seoul, KR
203.231.156.254	AS9848 SEJONG NETWORKS	`8.11ms` from Incheon, KR
203.231.36.160	AS17837 NHN KCP Corp.	`1.77ms` from Seoul, KR
203.231.94.29	AS9848 SEJONG NETWORKS	`0.69ms` from Seoul, KR
203.231.97.9	AS9848 SEJONG NETWORKS	`0.56ms` from Seoul, KR
203.231.12.198	AS18309 Korea VAn Service Co.LTD	`1.77ms` from Seoul, KR
203.231.16.1	AS9848 SEJONG NETWORKS	`0.85ms` from Seoul, KR
203.231.194.132	AS9848 SEJONG NETWORKS	`1.11ms` from Seoul, KR
203.231.28.210	AS9848 SEJONG NETWORKS	`6.65ms` from Seoul, KR
203.231.110.137	AS9848 SEJONG NETWORKS	`0.52ms` from Seoul, KR
203.231.154.254	AS9848 SEJONG NETWORKS	`2.52ms` from Seoul, KR
203.231.104.120	AS9848 SEJONG NETWORKS	`0.51ms` from Seoul, KR
203.231.105.201	AS9848 SEJONG NETWORKS	`0.50ms` from Seoul, KR
203.231.26.251	AS9848 SEJONG NETWORKS	`1.29ms` from Seoul, KR
203.231.137.114	AS9973 BSITC	`1.30ms` from Seoul, KR
203.231.21.6	AS9848 SEJONG NETWORKS	`0.94ms` from Seoul, KR
203.231.23.240	AS9848 SEJONG NETWORKS	`1.59ms` from Seoul, KR
203.231.153.254	AS18300 KEPCO	`5.38ms` from Seoul, KR
203.231.35.17	AS9848 SEJONG NETWORKS	`2.42ms` from Seoul, KR
203.231.91.157	AS9848 SEJONG NETWORKS	`0.76ms` from Seoul, KR
203.231.149.13	AS18305 POSCO DX	`7.97ms` from Incheon, KR
203.231.32.101	AS9848 SEJONG NETWORKS	`1.06ms` from Seoul, KR
203.231.68.122	AS9848 SEJONG NETWORKS	`1.09ms` from Seoul, KR
203.231.148.65	AS18305 POSCO DX	`6.69ms` from Incheon, 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
105.104.118.48	AS36947 Telecom Algeria	`9.14ms` from Algiers, DZ
39.106.60.80	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.97ms` from Beijing, CN
197.146.249.128	AS36884 Wana Corporate	`4.28ms` from Casablanca, MA
71.57.100.192	AS7922 Comcast Cable Communications, LLC	`5.68ms` from Chicago, US
75.212.34.144	AS6167 Verizon Business	`17.08ms` from Dallas, US
91.60.253.96	AS3320 Deutsche Telekom AG	`6.04ms` from Frankfurt am Main, DE
88.192.100.160	AS1759 Telia Finland Oyj	`1.12ms` from Helsinki, FI
123.23.151.128	AS45899 VNPT Corp	`4.90ms` from Ho Chi Minh City, VN
176.36.251.112	AS39608 Lanet Network Ltd	`0.52ms` from Kyiv, UA
147.28.109.16	AS48101 Trooli Ltd.	`1.44ms` from London, GB
90.203.197.0	AS5607 Sky UK Limited	`1.31ms` from London, GB
87.15.206.112	AS3269 Telecom Italia S.p.A.	`1.97ms` from Milan, IT
70.27.230.208	AS577 Bell Canada	`2.23ms` from Montreal, CA
78.193.48.96	AS12322 Free SAS	`6.64ms` from Paris, FR
144.24.45.192	AS31898 Oracle Corporation	`0.22ms` from Phoenix, US
83.11.171.80	AS5617 Orange Polska Spolka Akcyjna	`4.05ms` from Poznan, PL
220.128.146.176	AS3462 Data Communication Business Group	`0.77ms` from Taipei, TW
67.69.188.96	AS577 Bell Canada	`0.43ms` from Toronto, CA
128.132.75.80	AS668 United States Department of Defense (DoD)	`2.68ms` from Ashburn, US
122.58.204.16	AS4771 Spark New Zealand Trading Ltd.	`13.87ms` from Auckland, NZ
140.99.99.32	AS138156 CSNE Co., Ltd.	`0.50ms` from Bangkok, TH
81.12.167.0	AS12302 Vodafone Romania S.A.	`0.59ms` from Bucharest, RO
27.13.105.0	AS4837 CHINA UNICOM China169 Backbone	`7.59ms` from Chongqing, CN
204.253.82.16	AS701 Verizon Business	`4.64ms` from Dallas, US
134.195.184.112	AS398303 Diamedic.NET	`1.01ms` from Draper, US

Traceroute

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

traceroute -a -n -q1 -m5 203.231.127.37

traceroute to 203.231.127.37 (203.231.127.37): 5 hops max, 52 byte packets

1 [AS15169] 142.251.60.112 234.321 ms

2 [] 203.255.114.1 266.074 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Frankfurt am Main, DE

On January 30th 2026

What are IP address ranges?

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