211.239.172.0/23

AS9952 · Hostway IDC

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Summary

Country	South Korea
Domain	sejongnetworks.com
ASN	AS9952
Parent Range	211.239.128.0/18
Registry	APNIC
ID	SHINBIRO

WHOIS Details

inetnum:        211.239.128.0 - 211.239.191.255
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:  2024-09-10T08:50:11Z
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 211.239.172.0/23

Range	ASN	Company	Num of IPs
211.239.128.0/18	AS9848	SEJONG NETWORKS	16,384
211.239.128.0/18	AS9952	SEJONG NETWORKS	16,384

Nearby Ranges

BGP prefixes that overlap with 211.239.0.0/16

Range	ASN	Company	Num of IPs
211.239.0.0/17	AS9952	SEJONG NETWORKS	32,768
211.239.0.0/17	AS9848	SEJONG NETWORKS	32,768
211.239.128.0/18	AS9952	SEJONG NETWORKS	16,384
211.239.128.0/18	AS9848	SEJONG NETWORKS	16,384
211.239.192.0/18	AS9848	SEJONG NETWORKS	16,384
211.239.150.0/23	AS9952	Hostway	512
211.239.168.0/24	AS9952	Renoeve	256
211.239.124.0/24	AS9952	Hostway	256
211.239.161.0/24	AS9952	Sam Jung Data Service	256
211.239.164.0/24	AS9952	IDC Solution	256
211.239.174.0/24	AS4670	DTC Express	256

Hosted domains

There are 692 domain names hosted across 23 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

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

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

IP Address	ASN	Details
211.239.173.169	AS9952 Hostway IDC	`1.02ms` from Seoul, KR
211.239.172.201	AS9952 Hostway IDC	`1.10ms` 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
5.31.47.7	AS15802 Emirates Integrated Telecommunications Company PJSC	`4.39ms` from Dubai, AE
86.23.163.103	AS5089 Virgin Media Limited	`10.17ms` from Dublin, IE
188.103.89.135	AS3209 Vodafone GmbH	`9.58ms` from Frankfurt am Main, DE
82.140.50.183	AS8881 1&1 Versatel GmbH	`7.57ms` from Frankfurt am Main, DE
193.39.82.151	AS786 Jisc Services Limited	`1.46ms` from London, GB
87.14.56.103	AS3269 Telecom Italia S.p.A.	`3.45ms` from Milan, IT
208.38.150.39	AS16724 WideOpenWest Finance LLC	`3.13ms` from Orlando, US
73.92.14.71	AS7922 Comcast Cable Communications, LLC	`10.68ms` from San Jose, US
103.102.46.39	AS36007 Kamatera, Inc.	`0.25ms` from Singapore, SG
113.224.16.167	AS4837 CHINA UNICOM China169 Backbone	`2.28ms` from Tieling, CN
210.145.45.135	AS4713 NTT DOCOMO BUSINESS,Inc.	`15.74ms` from Tokyo, JP
52.228.126.39	AS8075 Microsoft Corporation	`0.16ms` from Toronto, CA
104.59.88.119	AS7018 AT&T Enterprises, LLC	`2.52ms` from Atlanta, US
52.27.136.215	AS16509 Amazon.com, Inc.	`0.15ms` from Boardman, US
189.172.92.167	AS8151 UNINET	`12.05ms` from Cancún, MX
181.215.169.135	AS396356 Latitude.sh	`0.09ms` from Los Angeles, US
43.248.103.151	AS23650 AS Number for CHINANET jiangsu province backbone	`2.49ms` from Nanjing, CN
112.26.146.231	AS9808 China Mobile Communications Group Co., Ltd.	`9.12ms` from Nanjing, CN
27.147.82.119	AS23624 Chukai Television Co,.Ltd.	`8.98ms` from Osaka, JP
111.193.196.135	AS4808 China Unicom Beijing Province Network	`3.53ms` from Beijing, CN
122.140.56.7	AS4837 CHINA UNICOM China169 Backbone	`9.11ms` from Changchun, CN
101.33.32.39	AS132203 Tencent Building, Kejizhongyi Avenue	`0.42ms` from Hong Kong, HK
72.130.158.55	AS20001 Charter Communications Inc	`4.57ms` from Honolulu, US
145.82.193.55	AS25019 Saudi Telecom Company JSC	`2.76ms` from Jeddah, SA
81.101.180.23	AS5089 Virgin Media Limited	`15.08ms` from Maidenhead, GB

Traceroute

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

traceroute -a -n -q1 -f4 211.239.172.156

traceroute to 211.239.172.156 (211.239.172.156): 64 hops max, 52 byte packets

4 [AS9848] 203.231.88.65 0.903 ms

5 [AS9848] 211.116.176.206 1.013 ms

6 [AS9848] 61.109.130.230 1.166 ms

7 *

8 [AS9952] 211.239.172.156 1.377 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On January 9th 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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