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
203.68.0.0/16	AS1659	Taiwan Academic Network	65,536
203.177.0.0/16	AS17894	Globe Telecom	65,536
203.227.0.0/16	AS9973	SEJONG NETWORKS	65,536
203.74.0.0/16	AS3462	Data Communication Business Group,	65,536
203.225.0.0/16	AS4766	KOLON BENIT	65,536
203.177.0.0/16	AS4775	Globe Telecom	65,536
203.73.0.0/16	AS4780	Digital United Inc.	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
203.182.0.0/16	AS4673	NTT DATA CORPORATION	65,536
203.151.0.0/16	AS133529	Internet Thailand Company Limited	65,536
203.197.0.0/16	AS4755	Internet Service Provider	65,536
203.218.0.0/16	AS4760	PCCW Limited	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	AS23644	KSC Commercial Internet Co. Ltd.	65,536
203.155.0.0/16	AS55844	KSC Commercial Internet Co. Ltd.	65,536
203.151.0.0/16	AS4618	Internet Thailand Company Limited	65,536
203.206.0.0/16	AS7545	iiNet Limited	65,536
203.224.0.0/16	AS9273	ITCENENTEC CO.,LTD.	65,536
203.85.0.0/16	AS4058	CITIC Telecom International CPC Limited	65,536
203.75.0.0/16	AS3462	Data Communication Business Group,	65,536
203.125.0.0/16	AS3758	SingNet Pte Ltd	65,536
203.155.0.0/16	AS17478	KSC Commercial Internet Co. Ltd.	65,536
203.206.0.0/16	AS4739	iiNet Limited	65,536
203.59.0.0/16	AS4739	iiNet Limited	65,536
203.69.0.0/16	AS137280	Data Communication Business Group,	65,536
203.200.0.0/16	AS4755	Internet Service Provider	65,536
203.108.0.0/16	AS703	OzEmail Pty Ltd	65,536
203.154.0.0/16	AS4618	Internet Thailand Company Limited	65,536
203.155.0.0/16	AS135620	KSC Commercial Internet Co. Ltd.	65,536
203.177.0.0/16	AS132199	Globe Telecom	65,536
203.227.0.0/16	AS23584	SEJONG NETWORKS	65,536
203.69.0.0/16	AS3462	Data Communication Business Group,	65,536
203.177.0.0/16	AS24179	Globe Telecom	65,536
203.177.0.0/16	AS132595	Globe Telecom	65,536
203.66.0.0/16	AS3462	Data Communication Business Group,	65,536
203.61.0.0/16	AS703	Verizon Australia PTY Limited	65,536
203.64.0.0/16	AS1659	Taiwan Academic Network	65,536
203.59.0.0/16	AS7545	iiNet Limited	65,536
203.200.0.0/16	AS40009	Internet Service Provider	65,536
203.162.0.0/16	AS7643	Vietnam Posts and Telecommunications Group	65,536

Hosted domains

There are 497 domain names hosted across 114 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
203.231.156.169	ipo.net	2
203.231.182.23	ssanikka.com	2
203.231.124.161	yonkanghall.com	2
203.231.145.35	kyec.co.kr	1
203.231.10.125	joindaou.com	1
203.231.31.46	honorsville.co.kr	1
203.231.11.102	postgres.co.kr	1
203.231.115.234	powerit.co.kr	1
203.231.170.53	wooriepro.com	1
203.231.200.1	vi-nyl.com	1
203.231.21.20	mdm-family.com	1
203.231.31.33	honorsville.co.kr	1
203.231.170.50	woorimuseum.com	1
203.231.29.151	hifg-tk.co.kr	1
203.231.63.38	pdamark.co.kr	1
203.231.31.36	kne.co.kr	1
203.231.29.131	hifg.co.kr	1
203.231.45.1	kpartner.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

Read more

Pingable IPs

5,127 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
203.231.228.75	AS17881 Inet Hosting, Inc.	`1.09ms` from Seoul, KR
203.231.21.6	AS9848 SEJONG NETWORKS	`0.93ms` from Seoul, KR
203.231.244.188	AS9848 SEJONG NETWORKS	`0.46ms` from Seoul, KR
203.231.32.78	AS9848 SEJONG NETWORKS	`1.10ms` from Seoul, KR
203.231.5.2	AS9848 SEJONG NETWORKS	`4.83ms` from Seoul, KR
203.231.133.79	AS38676 flexnetworks	`0.62ms` from Incheon, KR
203.231.99.190	AS9848 SEJONG NETWORKS	`0.69ms` from Seoul, KR
203.231.128.8	AS9848 SEJONG NETWORKS	`0.76ms` from Seoul, KR
203.231.202.2	AS9848 SEJONG NETWORKS	`1.62ms` from Seoul, KR
203.231.138.121	AS9973 BSITC	`56.46ms` from Seoul, KR
203.231.108.13	AS9848 SEJONG NETWORKS	`36.46ms` from Hong Kong, HK
203.231.145.33	AS9848 SEJONG NETWORKS	`6.92ms` from Incheon, KR
203.231.27.254	AS9848 SEJONG NETWORKS	`2.43ms` from Seoul, KR
203.231.241.19	AS9848 SEJONG NETWORKS	`0.87ms` from Seoul, KR
203.231.225.253	AS17881 Inet Hosting, Inc.	`0.88ms` from Seoul, KR
203.231.238.230	AS17881 Inet Hosting, Inc.	`0.94ms` from Seoul, KR
203.231.94.73	AS9848 SEJONG NETWORKS	`0.70ms` from Seoul, KR
203.231.181.193	AS9848 SEJONG NETWORKS	`1.29ms` from Seoul, KR
203.231.89.77	AS9848 SEJONG NETWORKS	`0.70ms` from Seoul, KR
203.231.92.193	AS9848 SEJONG NETWORKS	`0.73ms` from Seoul, KR
203.231.36.160	AS17837 NHN KCP Corp.	`1.80ms` from Seoul, KR
203.231.106.202	AS9848 SEJONG NETWORKS	`0.49ms` from Seoul, KR
203.231.95.185	AS9848 SEJONG NETWORKS	`0.72ms` from Seoul, KR
203.231.246.221	AS9848 SEJONG NETWORKS	`0.90ms` from Seoul, KR
203.231.131.1	AS38676 flexnetworks	`0.91ms` 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
165.228.81.96	AS1221 Telstra Limited	`6.09ms` from Brisbane, AU
203.198.127.192	AS4760 HKT Limited	`1.27ms` from Hong Kong, HK
39.119.91.176	AS9318 SK Broadband Co Ltd	`3.73ms` from Incheon, KR
87.127.167.64	AS8468 ENTANET International Limited	`5.69ms` from London, GB
90.5.142.208	AS3215 Orange S.A.	`7.03ms` from Marseille, FR
189.152.71.208	AS8151 UNINET	`1.75ms` from Monterrey, MX
144.24.45.192	AS31898 Oracle Corporation	`0.17ms` from Phoenix, US
95.110.153.32	AS31034 Aruba S.p.A.	`0.34ms` from Arezzo, IT
213.119.108.240	AS6848 Telenet BV	`5.48ms` from Brussels, BE
182.30.55.208	AS8987 Amazon Data Services Ireland Ltd	`0.86ms` from Columbus, US
204.253.82.16	AS701 Verizon Business	`4.99ms` from Dallas, US
146.19.175.160	AS201341 trafficforce, UAB	`0.52ms` from Frankfurt am Main, DE
14.121.245.80	AS4134 CHINANET-BACKBONE	`4.14ms` from Guangzhou, CN
15.156.163.96	AS16509 Amazon.com, Inc.	`0.15ms` from Montreal, CA
34.6.59.16	AS396982 Google LLC	`0.11ms` from Oudeschip, NL
176.176.231.192	AS5410 Bouygues Telecom SA	`10.07ms` from Paris, FR
194.212.78.176	AS13036 T-Mobile Czech Republic a.s.	`3.16ms` from Prague, CZ
134.90.228.128	AS48500 Irpinia Net-Com SRL	`14.01ms` from Rome, IT
96.6.225.128	AS16625 Akamai Technologies, Inc.	`0.60ms` from San Jose, US
45.185.175.0	AS269391 P&N NET PROVEDOR	`0.89ms` from Sao Paulo, BR
52.231.76.176	AS8075 Microsoft Corporation	`0.32ms` from Seoul, KR
203.247.44.176	AS9775 Hannam University	`3.40ms` from Seoul, KR
82.102.223.208	AS12975 PALTEL Autonomous System	`7.50ms` from Tel Aviv, IL
61.184.19.16	AS151185 China Telecom	`5.62ms` from Wuhan, CN
178.129.176.32	AS28812 PJSC "Bashinformsvyaz"	`8.96ms` from Yekaterinburg, RU

Traceroute

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

traceroute -a -n -q1 203.231.26.254

traceroute to 203.231.26.254 (203.231.26.254): 64 hops max, 52 byte packets

1 [AS199524] 92.223.73.3 0.13 ms

2 *

3 *

4 *

5 [] 139.150.100.42 0.692 ms

6 [AS15412] 80.77.1.102 1.266 ms

7 *

8 [AS9848] 211.239.202.38 1.014 ms

9 [AS9848] 211.115.199.78 0.782 ms

10 [AS9848] 203.231.26.254 2.665 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On February 7th 2026

What are IP address ranges?

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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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