203.228.137.0/24

AS7562 · HCN Dongjak

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Summary

Country	South Korea
Domain	sejongnetworks.com
ASN	AS7562
Parent Range	203.228.128.0/17
Registry	APNIC
ID	SHINBIRO

WHOIS Details

inetnum:        203.228.128.0 - 203.228.255.255
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 contain 203.228.137.0/24

Range	ASN	Company	Num of IPs
203.228.128.0/17	AS7562	SEJONG NETWORKS	32,768
203.228.128.0/17	AS3786	SEJONG NETWORKS	32,768
203.228.128.0/17	AS4670	SEJONG NETWORKS	32,768

Nearby Ranges

BGP prefixes that overlap with 203.228.0.0/16

Range	ASN	Company	Num of IPs
203.228.128.0/17	AS3786	SEJONG NETWORKS	32,768
203.228.128.0/17	AS4670	SEJONG NETWORKS	32,768
203.228.0.0/17	AS4766	Korea Telecom	32,768
203.228.128.0/17	AS7562	SEJONG NETWORKS	32,768
203.228.206.0/24	AS38098	NC VAN	256
203.228.198.0/24	AS38686	EB	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

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
101.18.248.200	AS4837 CHINA UNICOM China169 Backbone	`11.98ms` from Beijing, CN
91.127.9.120	AS6855 Slovak Telekom, a.s.	`6.57ms` from Bratislava, SK
156.194.48.184	AS8452 TE-AS	`5.84ms` from Cairo, EG
97.243.183.104	AS6167 Verizon Business	`16.76ms` from Chicago, US
82.17.102.216	AS5089 Virgin Media Limited	`13.40ms` from Dublin, IE
87.170.207.248	AS3320 Deutsche Telekom AG	`6.00ms` from Duesseldorf, DE
91.241.44.56	AS29551 Aixit GmbH	`0.50ms` from Frankfurt am Main, DE
68.6.149.104	AS22773 Cox Communications Inc.	`8.56ms` from Los Angeles, US
182.165.21.24	AS17511 OPTAGE Inc.	`2.51ms` from Osaka, JP
93.27.45.72	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`10.47ms` from Paris, FR
80.188.16.8	AS5610 O2 Czech Republic, a.s.	`0.56ms` from Prague, CZ
52.230.53.72	AS8075 Microsoft Corporation	`0.38ms` from Singapore, SG
37.140.39.136	AS8369 Intersvyaz-2 JSC	`8.63ms` from Yekaterinburg, RU
72.66.106.88	AS701 Verizon Business	`2.04ms` from Ashburn, US
75.228.151.88	AS6167 Verizon Business	`15.46ms` from Boston, US
50.103.4.120	AS5650 Frontier Communications of America, Inc.	`2.65ms` from Chicago, US
186.225.95.56	AS28257 CONCEITOS NET SERVICOS DE COMUNICACAO E MULTIMIDIA	`4.59ms` from Fortaleza, BR
92.218.5.152	AS3209 Vodafone GmbH	`7.05ms` from Frankfurt am Main, DE
185.115.197.120	AS35180 Broadsoft LTD	`0.65ms` from Frankfurt am Main, DE
172.225.99.56	AS36183 Akamai Technologies, Inc.	`8.12ms` from Milan, IT
173.63.136.200	AS701 Verizon Business	`1.01ms` from New York City, US
153.221.252.136	AS4713 NTT DOCOMO BUSINESS,Inc.	`9.50ms` from Osaka, JP
34.231.70.72	AS14618 Amazon.com, Inc.	`0.39ms` from Reston, US
97.133.23.24	AS6167 Verizon Business	`13.26ms` from Seattle, US
205.211.96.200	AS17353 Simcoe County District School Board	`3.32ms` from Toronto, CA

Traceroute

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

traceroute -a -n -q1 -m8 203.228.137.29

traceroute to 203.228.137.29 (203.228.137.29): 8 hops max, 52 byte packets

1 [AS15169] 66.249.95.81 32.946 ms

2 [AS15169] 142.251.66.206 32.885 ms

3 [] 139.150.100.36 68.816 ms

4 [AS7562] 110.35.162.150 68.424 ms

5 [AS7562] 111.118.20.246 68.302 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Chang-hua, TW

On April 13th 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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