203.236.128.0/18

AS9848 · SEJONG NETWORKS

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Summary

Country	South Korea
Domain	sejongnetworks.com
ASN	AS9848
Registry	APNIC
ID	SHINBIRO

WHOIS Details

inetnum:        203.236.128.0 - 203.236.191.255
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 are contained by 203.236.128.0/18

Range	ASN	Company	Num of IPs
203.236.135.0/24	AS9845	CJcablenet	256
203.236.188.0/22	AS23584	PUSAN CATV	1,024

Nearby Ranges

BGP prefixes that overlap with 203.236.0.0/16

Range	ASN	Company	Num of IPs
203.236.192.0/18	AS9286	KINX	16,384
203.236.0.0/19	AS9644	SK Telecom	8,192
203.236.32.0/21	AS9644	SK Telecom	2,048
203.236.188.0/22	AS23584	PUSAN CATV	1,024
203.236.40.0/22	AS9644	SK Telecom	1,024
203.236.135.0/24	AS9845	CJcablenet	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

2,018 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
203.236.177.11	AS9973 BSITC	`55.28ms` from Seoul, KR
203.236.144.255	AS9848 SEJONG NETWORKS	`0.49ms` from Seoul, KR
203.236.152.3	AS9848 SEJONG NETWORKS	`0.61ms` from Seoul, KR
203.236.155.156	AS9848 SEJONG NETWORKS	`0.47ms` from Seoul, KR
203.236.176.185	AS9973 BSITC	`57.50ms` from Seoul, KR
203.236.148.154	AS9848 SEJONG NETWORKS	`0.59ms` from Seoul, KR
203.236.153.142	AS9848 SEJONG NETWORKS	`0.51ms` from Seoul, KR
203.236.178.17	AS9973 BSITC	`57.89ms` from Seoul, KR
203.236.156.151	AS9848 SEJONG NETWORKS	`0.49ms` from Seoul, KR
203.236.147.20	AS9848 SEJONG NETWORKS	`0.50ms` from Seoul, KR
203.236.190.129	AS23584 PUSAN CABLE TV SYSTEM CO., LTD.	`7.19ms` from Seoul, KR
203.236.145.94	AS9848 SEJONG NETWORKS	`0.46ms` from Seoul, KR
203.236.149.70	AS9848 SEJONG NETWORKS	`0.46ms` from Seoul, KR
203.236.191.97	AS23584 PUSAN CABLE TV SYSTEM CO., LTD.	`7.38ms` from Seoul, KR
203.236.142.209	AS9848 SEJONG NETWORKS	`6.69ms` from Seoul, KR
203.236.179.121	AS9973 BSITC	`57.53ms` from Seoul, KR
203.236.162.2	AS23588 KAKAO Enterprise	`1.09ms` 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
145.222.229.194	AS21286 KPN B.V.	`0.81ms` from Amsterdam, NL
47.94.174.50	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.96ms` from Beijing, CN
174.65.229.82	AS22773 Cox Communications Inc.	`7.50ms` from Los Angeles, US
64.188.6.2	AS36352 HostPapa	`0.36ms` from Los Angeles, US
178.248.182.162	AS49653 CADF S.p.A	`5.10ms` from Milan, IT
185.162.9.34	AS207728 EUROHOSTER Ltd.	`0.09ms` from Naaldwijk, NL
93.211.19.82	AS3320 Deutsche Telekom AG	`2.83ms` from Nuernberg, DE
177.135.154.114	AS18881 TELEFÔNICA BRASIL S.A	`2.58ms` from Osasco, BR
194.50.29.2	AS39495 COLIBRI SOLUTIONS	`0.40ms` from Paris, FR
96.86.216.2	AS7922 Comcast Cable Communications, LLC	`6.13ms` from Salt Lake City, US
18.96.128.18	AS16509 Amazon.com, Inc.	`0.69ms` from San Jose, US
12.244.182.162	AS7018 AT&T Enterprises, LLC	`2.10ms` from San Jose, US
87.227.194.2	AS29580 A1 Bulgaria EAD	`0.56ms` from Sofia, BG
99.250.217.194	AS812 Rogers Communications Canada Inc.	`5.82ms` from Toronto, CA
31.8.63.18	AS28812 PJSC "Bashinformsvyaz"	`9.10ms` from Yekaterinburg, RU
77.161.145.82	AS1136 KPN B.V.	`1.52ms` from Amsterdam, NL
109.107.176.178	AS216071 SERVERS TECH FZCO	`1.51ms` from Amsterdam, NL
145.50.82.18	AS42894 Ministerie van Verkeer en Waterstaat/Rijkswaterstaat	`3.42ms` from Amsterdam, NL
20.23.9.178	AS8075 Microsoft Corporation	`0.22ms` from Amsterdam, NL
142.229.241.18	AS393952 Service Alberta	`0.88ms` from Calgary, CA
218.189.96.162	AS9304 HGC Global Communications Limited	`0.22ms` from Hong Kong, HK
50.209.219.242	AS7922 Comcast Cable Communications, LLC	`8.21ms` from Houston, US
92.232.23.18	AS5089 Virgin Media Limited	`7.25ms` from London, GB
109.227.159.210	AS15704 XTRA TELECOM S.A.	`1.36ms` from Madrid, ES
151.95.228.226	AS1267 WIND TRE S.P.A.	`10.98ms` from Milan, IT

Traceroute

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

traceroute -a -n -q1 -m4 203.236.131.40

traceroute to 203.236.131.40 (203.236.131.40): 4 hops max, 52 byte packets

1 [AS399244] 66.59.208.1 2.607 ms

2 *

3 *

4 *

Measurement taken from

IPinfo ProbeNet in Falkenstein, DE

On January 19th 2026

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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