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

2,540 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
203.236.191.193	AS23584 PUSAN CABLE TV SYSTEM CO., LTD.	`7.26ms` from Seoul, KR
203.236.179.25	AS9973 BSITC	`56.38ms` from Seoul, KR
203.236.190.176	AS23584 PUSAN CABLE TV SYSTEM CO., LTD.	`7.29ms` from Seoul, KR
203.236.162.2	AS23588 KAKAO Enterprise	`0.88ms` from Seoul, KR
203.236.152.3	AS9848 SEJONG NETWORKS	`0.60ms` from Seoul, KR
203.236.176.145	AS9973 BSITC	`56.42ms` from Seoul, KR
203.236.145.102	AS9848 SEJONG NETWORKS	`0.47ms` from Seoul, KR
203.236.155.196	AS9848 SEJONG NETWORKS	`0.46ms` from Seoul, KR
203.236.177.11	AS9973 BSITC	`54.33ms` from Seoul, KR
203.236.147.40	AS9848 SEJONG NETWORKS	`0.51ms` from Seoul, KR
203.236.144.255	AS9848 SEJONG NETWORKS	`0.47ms` from Seoul, KR
203.236.150.255	AS9848 SEJONG NETWORKS	`0.74ms` from Seoul, KR
203.236.178.57	AS9973 BSITC	`56.42ms` from Seoul, KR
203.236.149.86	AS9848 SEJONG NETWORKS	`0.47ms` from Seoul, KR
203.236.142.18	AS9848 SEJONG NETWORKS	`7.00ms` from Seoul, KR
203.236.153.222	AS9848 SEJONG NETWORKS	`0.51ms` from Seoul, KR
203.236.148.97	AS9848 SEJONG NETWORKS	`0.52ms` from Seoul, KR
203.236.156.59	AS9848 SEJONG NETWORKS	`0.51ms` 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
34.21.88.2	AS396982 Google LLC	`0.12ms` from Ashburn, US
104.251.250.130	AS26827 EPB Fiber Optics	`3.27ms` from Atlanta, US
73.149.87.226	AS7922 Comcast Cable Communications, LLC	`10.43ms` from Boston, US
141.99.33.162	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`6.58ms` from Frankfurt am Main, DE
176.12.108.34	AS50300 CustodianDC Limited	`1.35ms` from London, GB
64.188.6.2	AS36352 HostPapa	`0.37ms` from Los Angeles, US
64.15.75.66	AS10929 eStruxture Data Centers Inc.	`1.00ms` from Montreal, CA
70.15.179.146	AS3737 PenTeleData Inc.	`13.31ms` from Morris Plains, US
108.170.92.130	AS6128 Cablevision Systems Corp.	`5.01ms` from New York City, US
100.12.101.242	AS701 Verizon Business	`2.16ms` from New York City, US
126.50.70.194	AS17676 SoftBank Corp.	`2.03ms` from Osaka, JP
49.251.121.34	AS9617 JCOM Co., Ltd.	`11.28ms` from Osaka, JP
179.108.96.2	AS16735 ALGAR TELECOM S/A	`9.89ms` from Porto Alegre, BR
186.47.85.2	AS28006 CORPORACION NACIONAL DE TELECOMUNICACIONES - CNT EP	`1.71ms` from Quito, EC
89.179.120.242	AS8402 PJSC "Vimpelcom"	`1.60ms` from Saint Petersburg, RU
125.140.66.194	AS4766 Korea Telecom	`2.15ms` from Seoul, KR
175.228.113.194	AS4766 Korea Telecom	`1.60ms` from Seoul, KR
120.24.99.2	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.49ms` from Shenzhen, CN
130.137.29.194	AS16509 Amazon.com, Inc.	`0.03ms` from Bangkok, TH
185.138.176.146	AS39396 NBI Systems Ltd.	`1.62ms` from Bucharest, RO
89.41.175.130	AS42568 DIGITAL PROJECT SRL	`0.41ms` from Bucharest, RO
217.6.215.2	AS3320 Deutsche Telekom AG	`3.92ms` from Frankfurt am Main, DE
73.6.94.82	AS7922 Comcast Cable Communications, LLC	`5.00ms` from Houston, US
116.121.145.98	AS9318 SK Broadband Co Ltd	`1.71ms` from Incheon, KR
196.33.144.242	AS3741 Dimension Data	`0.76ms` from Johannesburg, ZA

Traceroute

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

traceroute -a -n -q1 -m5 203.236.141.219

traceroute to 203.236.141.219 (203.236.141.219): 5 hops max, 52 byte packets

1 [AS263812] 38.165.233.1 0.071 ms

2 [AS52468] 181.78.95.209 2.376 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Asuncion, PY

On February 7th 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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