211.172.104.0/21

AS9848 · SEJONG NETWORKS

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Summary

Country	South Korea
Domain	sejongnetworks.com
ASN	AS9848
Parent Range	211.172.96.0/20
Registry	APNIC
ID	SHINBIRO

WHOIS Details

inetnum:        211.172.96.0 - 211.172.111.255
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:  2024-09-10T08:50:10Z
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 211.172.104.0/21

Range	ASN	Company	Num of IPs
211.172.96.0/20	AS9848	SEJONG NETWORKS	4,096

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

1,523 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
211.172.109.76	AS9848 SEJONG NETWORKS	`0.97ms` from Seoul, KR
211.172.104.165	AS9848 SEJONG NETWORKS	`0.99ms` from Seoul, KR
211.172.105.88	AS9848 SEJONG NETWORKS	`0.96ms` from Seoul, KR
211.172.107.122	AS9848 SEJONG NETWORKS	`1.03ms` from Seoul, KR
211.172.108.1	AS9848 SEJONG NETWORKS	`2.18ms` from Seoul, KR
211.172.110.167	AS9848 SEJONG NETWORKS	`1.00ms` from Seoul, KR
211.172.106.99	AS9848 SEJONG NETWORKS	`1.00ms` 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
159.100.79.245	AS33915 Vodafone Libertel B.V.	`0.86ms` from Amsterdam, NL
190.168.1.69	AS23007 Universidad de Los Andes	`12.51ms` from Bogota, CO
191.107.237.133	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`5.21ms` from Bogota, CO
97.64.223.69	AS30036 Mediacom Communications Corp	`8.10ms` from Chicago, US
95.153.73.197	AS1547 INTERDNESTRKOM, Sovmestnoe Zakrytoe Aktsionernoe Obshchestvo	`2.96ms` from Chisinau, MD
80.170.11.197	AS1257 Tele2 Sverige AB	`1.78ms` from Copenhagen, DK
145.224.97.197	AS14593 Space Exploration Technologies Corporation	`13.36ms` from Frankfurt am Main, DE
64.188.73.133	AS213877 u1host ltd	`0.90ms` from Helsinki, FI
82.207.14.165	AS6849 JSC "Ukrtelecom"	`0.52ms` from Kyiv, UA
218.8.132.245	AS4837 CHINA UNICOM China169 Backbone	`17.35ms` from Liaoyang, CN
18.135.94.101	AS16509 Amazon.com, Inc.	`0.13ms` from London, GB
90.211.15.37	AS5607 Sky UK Limited	`5.63ms` from London, GB
64.150.192.37	AS15146 Cable Bahamas	`3.31ms` from Miami, US
151.11.237.229	AS1267 WIND TRE S.P.A.	`1.06ms` from Milan, IT
88.39.236.85	AS3269 Telecom Italia S.p.A.	`16.97ms` from Milan, IT
23.81.27.117	AS27411 Leaseweb USA, Inc.	`0.84ms` from Mount Prospect, US
150.31.146.21	AS2497 Internet Initiative Japan Inc.	`4.40ms` from Osaka, JP
153.208.22.245	AS4713 NTT Communications Corporation	`11.24ms` from Osaka, JP
189.79.118.37	AS27699 TELEFÔNICA BRASIL S.A	`1.81ms` from Osasco, BR
193.91.136.133	AS2116 GLOBALCONNECT AS	`2.00ms` from Oslo, NO
160.153.77.133	AS26496 GoDaddy.com, LLC	`1.16ms` from Phoenix, US
67.180.5.181	AS7922 Comcast Cable Communications, LLC	`5.54ms` from San Jose, US
62.95.109.197	AS1257 Tele2 Sverige AB	`3.77ms` from Stockholm, SE
108.61.212.117	AS20473 The Constant Company, LLC	`0.16ms` from Sydney, AU
111.101.44.37	AS2516 KDDI CORPORATION	`0.97ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 211.172.110.96

traceroute to 211.172.110.96 (211.172.110.96): 64 hops max, 52 byte packets

1 [AS15169] 172.253.64.138 1.227 ms

2 [] 139.150.100.196 1.921 ms

3 *

4 [AS9848] 211.172.110.96 1.531 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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