203.243.134.0/24

AS9848 · SEJONG NETWORKS

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Summary

Country	South Korea
Domain	sejongnetworks.com
ASN	AS9848
Parent Range	203.243.128.0/17
Registry	APNIC
ID	SHINBIRO

WHOIS Details

inetnum:        203.243.128.0 - 203.243.255.255
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:  2024-09-10T08:50:06Z
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 203.243.134.0/24

Range	ASN	Company	Num of IPs
203.243.128.0/17	AS18300	SEJONG NETWORKS	32,768
203.243.128.0/17	AS23584	SEJONG NETWORKS	32,768
203.243.128.0/17	AS9848	SEJONG NETWORKS	32,768

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

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

IP Address	ASN	Details
203.243.134.48	AS9848 SEJONG NETWORKS	`0.92ms` 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
200.25.11.8	AS7195 EDGEUNO S.A.S	`0.14ms` from Bogota, CO
54.37.38.200	AS16276 OVH SAS	`0.12ms` from Gravelines, FR
46.164.17.232	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`1.00ms` from Ljubljana, SI
79.145.45.120	AS3352 TELEFONICA DE ESPANA S.A.U.	`12.93ms` from Madrid, ES
69.207.119.104	AS11351 Charter Communications Inc	`15.89ms` from New York City, US
109.81.193.56	AS5610 O2 Czech Republic, a.s.	`4.96ms` from Prague, CZ
128.83.161.72	AS18 University of Texas at Austin	`5.03ms` from San Antonio, US
166.144.192.232	AS6167 Verizon Business	`13.87ms` from San Jose, US
18.179.248.104	AS16509 Amazon.com, Inc.	`0.26ms` from Tokyo, JP
153.126.206.104	AS7684 SAKURA Internet Inc.	`16.39ms` from Tokyo, JP
75.131.109.104	AS20115 Charter Communications LLC	`11.12ms` from Chicago, US
76.214.161.88	AS7018 AT&T Enterprises, LLC	`9.17ms` from Chicago, US
34.61.122.152	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
187.62.7.8	AS22689 SERCOMTEL S/A TELECOMUNICACOES	`5.80ms` from Curitiba, BR
92.205.178.104	AS21499 Host Europe GmbH	`3.09ms` from Frankfurt am Main, DE
183.254.69.88	AS9808 China Mobile Communications Group Co., Ltd.	`13.90ms` from Guangzhou, CN
93.10.109.72	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`2.86ms` from Lyon, FR
2.60.225.232	AS12389 PJSC Rostelecom	`8.76ms` from Novosibirsk, RU
56.136.146.56	AS8987 Amazon Data Services Ireland Ltd	`5.01ms` from Portland, US
198.141.97.248	AS2571 DHL Information Services (Europe) s.r.o	`0.76ms` from Prague, CZ
73.16.191.184	AS7922 Comcast Cable Communications, LLC	`7.47ms` from Providence, US
74.220.205.40	AS46606 Unified Layer	`1.95ms` from Salt Lake City, US
52.127.102.8	AS8070 Microsoft Corporation	`1.15ms` from San Antonio, US
112.187.199.56	AS4766 Korea Telecom	`0.88ms` from Seoul, KR
1.251.186.56	AS9318 SK Broadband Co Ltd	`5.29ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 203.243.134.187

traceroute to 203.243.134.187 (203.243.134.187): 64 hops max, 52 byte packets

1 [AS15169] 172.253.64.138 1.187 ms

2 [] 139.150.100.196 9.689 ms

3 *

4 [AS9848] 203.243.134.187 1.428 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On September 4th 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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