210.103.203.0/24

AS23593 · bkl LLC

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Summary

Country	South Korea
Domain	sejongnetworks.com
ASN	AS23593
Parent Range	210.103.128.0/17
Registry	APNIC
ID	SHINBIRO

WHOIS Details

inetnum:        210.103.224.0 - 210.103.255.255
netname:        KRNIC-KR
descr:          KRNIC
descr:          Korea Network Information Center
country:        KR
admin-c:        HM127-AP
tech-c:         HM127-AP
remarks:        ******************************************
remarks:        KRNIC is the National Internet Registry
remarks:        in Korea under APNIC. If you would like to
remarks:        find assignment information in detail
remarks:        please refer to the KRNIC Whois DB
remarks:        http://whois.nic.or.kr/english/index.html
remarks:        ******************************************
mnt-by:         MNT-KRNIC-AP
mnt-lower:      MNT-KRNIC-AP
status:         ALLOCATED PORTABLE
last-modified:  2017-12-20T07:17:13Z
source:         APNIC
mnt-irt:        IRT-KRNIC-KR

irt:            IRT-KRNIC-KR
address:        9, Jinheung-gil, Naju-si, Jeollanam-do
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:  2025-09-04T01:00:01Z
source:         APNIC

person:         Host Master
address:        Jeollanam-do Naju-si Jinheung-gil
country:        KR
phone:          +82-2-405-5118
e-mail:         hostmaster@nic.or.kr
nic-hdl:        HM127-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2019-05-22T01:20:31Z
source:         APNIC

inetnum:        210.103.128.0 - 210.103.255.255
netname:        SEJONG-KR
descr:          SEJONG NETWORKS
country:        KR
admin-c:        IA10-KR
tech-c:         IM10-KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
changed:        hostmaster@nic.or.kr 20240912
remarks:        This information has been partially mirrored by APNIC from
remarks:        KRNIC. To obtain more specific information, please use the
remarks:        KRNIC whois server at whois.kisa.or.kr.
source:         KRNIC

person:         IP Manager
address:        12 Gwacheon-daero 7-gil, Gwacheon-si, Gyeonggi-do
address:        (Galhyeondong)
country:        KR
phone:          +82-2-1688-2200
e-mail:         ip@sejongnetworks.com
nic-hdl:        IA10-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr 20240912
remarks:        This information has been partially mirrored by APNIC from
remarks:        KRNIC. To obtain more specific information, please use the
remarks:        KRNIC whois server at whois.kisa.or.kr.
source:         KRNIC

person:         IP Manager
address:        12 Gwacheon-daero 7-gil, Gwacheon-si, Gyeonggi-do
address:        (Galhyeondong)
country:        KR
phone:          +82-2-1688-2200
e-mail:         ip@sejongnetworks.com
nic-hdl:        IM10-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr 20240912
remarks:        This information has been partially mirrored by APNIC from
remarks:        KRNIC. To obtain more specific information, please use the
remarks:        KRNIC whois server at whois.kisa.or.kr.
source:         KRNIC

Overlapping Ranges

BGP prefixes that contain 210.103.203.0/24

Range	ASN	Company	Num of IPs
210.103.128.0/17	AS23593	SEJONG NETWORKS	32,768
210.103.128.0/17	AS9848	SEJONG NETWORKS	32,768

Nearby Ranges

BGP prefixes that overlap with 210.103.0.0/16

Range	ASN	Company	Num of IPs
210.103.128.0/17	AS23593	SEJONG NETWORKS	32,768
210.103.128.0/17	AS9848	SEJONG NETWORKS	32,768
210.103.187.0/24	AS131866	Its-in	256
210.103.152.0/24	AS38676	FLEXNET	256
210.103.137.0/24	AS131866	Its-in	256
210.103.154.0/24	AS38676	FLEXNET	256
210.103.155.0/24	AS38676	FLEXNET	256
210.103.176.0/24	AS38676	FLEXNET	256
210.103.153.0/24	AS38676	FLEXNET	256
210.103.138.0/24	AS131866	Its-in	256

Hosted domains

There are no domains currently hosted on this ASN.

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

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

IP Address	ASN	Details
210.103.203.137	AS23593 bkl LLC	`1.41ms` 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
20.16.135.104	AS8075 Microsoft Corporation	`0.26ms` from Amsterdam, NL
216.126.44.104	AS395336 MacStadium, Inc.	`0.62ms` from Atlanta, US
217.154.74.200	AS8560 IONOS SE	`0.60ms` from Berlin, DE
27.96.200.72	AS18390 Spintel Pty Ltd	`1.78ms` from Brisbane, AU
2.18.247.248	AS20940 Akamai International B.V.	`0.35ms` from Buenos Aires, AR
90.253.107.120	AS5378 Vodafone Limited	`3.92ms` from London, GB
212.210.254.184	AS3269 Telecom Italia S.p.A.	`7.81ms` from Milan, IT
105.209.167.104	AS16637 MTN SA	`3.34ms` from Pretoria, ZA
123.214.137.216	AS9318 SK Broadband Co Ltd	`4.83ms` from Seoul, KR
172.217.19.232	AS15169 Google LLC	`0.13ms` from Stockholm, SE
124.190.159.232	AS1221 Telstra Limited	`2.28ms` from Sydney, AU
60.126.66.168	AS17676 SoftBank Corp.	`2.64ms` from Tokyo, JP
77.235.42.216	AS60781 LeaseWeb Netherlands B.V.	`0.32ms` from Amsterdam, NL
197.167.5.216	AS24863 Link Egypt (Link.NET)	`10.85ms` from Cairo, EG
3.133.115.184	AS16509 Amazon.com, Inc.	`0.18ms` from Columbus, US
81.149.188.72	AS2856 British Telecommunications PLC	`3.21ms` from Erith, GB
178.128.173.216	AS14061 DigitalOcean, LLC	`0.29ms` from London, GB
166.198.131.40	AS7018 AT&T Enterprises, LLC	`0.47ms` from Los Angeles, US
88.21.141.200	AS3352 TELEFONICA DE ESPANA S.A.U.	`5.36ms` from Madrid, ES
173.16.236.200	AS30036 Mediacom Communications Corp	`13.35ms` from Minneapolis, US
167.62.114.72	AS6057 Administracion Nacional de Telecomunicaciones	`1.76ms` from Montevideo, UY
114.158.196.72	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.19ms` from Osaka, JP
92.175.136.72	AS3215 Orange S.A.	`3.35ms` from Paris, FR
60.117.26.232	AS17676 SoftBank Corp.	`2.97ms` from Tokyo, JP
202.213.42.8	AS23785 SUN FIELD INTERNET LIMITED	`3.46ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 210.103.203.140

traceroute to 210.103.203.140 (210.103.203.140): 64 hops max, 52 byte packets

1 [AS199524] 82.117.226.1 0.103 ms

2 *

3 *

4 *

5 [AS9457] 211.45.68.57 0.795 ms

6 [AS9318] 39.120.253.58 0.665 ms

7 [AS9318] 39.120.253.57 1.494 ms

8 *

9 *

10 *

11 [AS9318] 1.232.154.46 1.757 ms

12 [AS23593] 210.103.203.134 1.6 ms

13 [AS23593] 210.103.203.140 1.526 ms

Measurement taken from

IPinfo ProbeNet in Incheon, KR

On March 13th 2026

What are IP address ranges?

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