210.121.8.0/21

AS45374 · CCS

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	South Korea
Domain	ccsdirect.net
ASN	AS45374
Parent Range	210.121.0.0/17
Registry	KRNIC
ID	210.121.0.0-210.121.15.255

WHOIS Details

inetnum:            210.121.0.0 - 210.121.15.255
descr:              CCS
network-type:       CUSTOMER
address:            Yongsan-dong Chungju-si Chungcheongbuk-do
zip-code:           27399
created:            2003-09-06
admin:              GENERATED-KRNIC-IP-MANAGER-HANGK21
country:            KR
source:             KRNIC

nic-hdl:            GENERATED-KRNIC-IP-MANAGER-HANGK21
person:             IP Manager
name:               IP Manager
phone:              +82-43-850-7059
e-mail:             [email protected]
source:             KRNIC

Overlapping Ranges

BGP prefixes that contain 210.121.8.0/21

Range	ASN	Company	Num of IPs
210.121.0.0/17	AS45374	SEJONG NETWORKS	32,768
210.121.0.0/17	AS9848	SEJONG NETWORKS	32,768

Nearby Ranges

BGP prefixes that overlap with 210.121.0.0/16

Range	ASN	Company	Num of IPs
210.121.128.0/17	AS10058	Korea Telecom	32,768
210.121.128.0/17	AS152290	Korea Telecom	32,768
210.121.128.0/17	AS18176	Korea Telecom	32,768
210.121.128.0/17	AS38676	Korea Telecom	32,768
210.121.0.0/17	AS45374	SEJONG NETWORKS	32,768
210.121.128.0/17	AS4766	Korea Telecom	32,768
210.121.128.0/17	AS55627	Korea Telecom	32,768
210.121.0.0/17	AS9848	SEJONG NETWORKS	32,768

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

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

IP Address	ASN	Details
210.121.15.19	AS45374 CCS	`4.41ms` from Seoul, KR
210.121.8.7	AS45374 CCS	`4.80ms` from Seoul, KR
210.121.11.143	AS45374 CCS	`4.04ms` from Incheon, KR
210.121.9.109	AS45374 CCS	`5.13ms` from Incheon, KR
210.121.14.72	AS45374 CCS	`3.95ms` from Seoul, KR
210.121.10.10	AS45374 CCS	`3.98ms` from Incheon, 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
85.215.209.181	AS8560 IONOS SE	`0.58ms` from Berlin, DE
88.255.41.101	AS9121 Turk Telekomunikasyon Anonim Sirketi	`0.49ms` from Bursa, TR
5.159.238.53	AS50144 Unimatrix IT Solutions Kft.	`0.55ms` from Dallas, US
176.61.37.101	AS6830 Liberty Global Europe Holding B.V.	`3.67ms` from Dublin, IE
93.186.64.117	AS210734 IPHOSTER OU	`0.06ms` from Gravelines, FR
80.135.244.181	AS3320 Deutsche Telekom AG	`1.99ms` from Hamburg, DE
78.32.106.149	AS8468 ENTANET International Limited	`1.47ms` from London, GB
14.2.59.85	AS7545 TPG Telecom Limited	`1.41ms` from Melbourne, AU
18.102.245.5	AS16509 Amazon.com, Inc.	`0.14ms` from Milan, IT
80.182.243.245	AS3269 Telecom Italia S.p.A.	`6.51ms` from Milan, IT
92.53.78.37	AS50340 JSC Selectel	`0.72ms` from Moscow, RU
136.126.228.5	AS36411 Google LLC	`18.54ms` from Mumbai, IN
96.244.210.5	AS701 Verizon Business	`4.26ms` from Philadelphia, US
34.202.170.149	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
54.225.86.5	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
73.90.8.229	AS7922 Comcast Cable Communications, LLC	`8.01ms` from San Jose, US
118.32.229.21	AS4766 Korea Telecom	`1.57ms` from Seoul, KR
52.220.211.117	AS16509 Amazon.com, Inc.	`0.11ms` from Singapore, SG
42.233.16.229	AS4837 CHINA UNICOM China169 Backbone	`2.07ms` from Zhengzhou, CN
131.211.171.117	AS1103 SURF B.V.	`1.15ms` from Amsterdam, NL
67.106.222.165	AS2828 Verizon Business	`15.23ms` from Ashburn, US
74.136.118.197	AS10796 Charter Communications Inc	`16.74ms` from Columbus, US
135.116.199.5	AS8075 Microsoft Corporation	`0.22ms` from Gaevle, SE
14.152.18.181	AS4134 CHINANET-BACKBONE	`6.76ms` from Guangzhou, CN
1.180.92.37	AS4134 CHINANET-BACKBONE	`4.55ms` from Hohhot, CN

Traceroute

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

traceroute -a -n -q1 210.121.9.57

traceroute to 210.121.9.57 (210.121.9.57): 64 hops max, 52 byte packets

1 [AS15169] 142.251.60.112 148.347 ms

2 *

3 [AS9457] 211.61.140.2 183.685 ms

4 *

5 *

6 *

7 *

8 [AS45374] 210.121.9.57 185.764 ms

Measurement taken from

IPinfo ProbeNet in Montreal, CA

On January 30th 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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales