210.121.0.0/17

AS9848 · SEJONG NETWORKS

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Summary

Country	South Korea
Domain	sejongnetworks.com
ASN	AS9848
Registry	APNIC
ID	SHINBIRO

WHOIS Details

inetnum:        210.121.0.0 - 210.121.127.255
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:  2024-09-10T08:50:08Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        Jeollanam-do Naju-si Jinheung-gil
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
nic-hdl:        IM686-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2024-09-10T08:42:02Z
source:         APNIC

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
210.121.128.0/17	AS4766	Korea Telecom	32,768
210.121.128.0/17	AS55627	Korea Telecom	32,768

Hosted domains

There is 1 domain name hosted across 1 IP address 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

4,970 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
210.121.2.1	AS45374 CCS	`5.50ms` from Seoul, KR
210.121.1.18	AS45374 CCS	`4.21ms` from Incheon, KR
210.121.119.75	AS45374 CCS	`4.28ms` from Incheon, KR
210.121.117.203	AS45374 CCS	`4.59ms` from Incheon, KR
210.121.80.11	AS45374 CCS	`3.97ms` from Seoul, KR
210.121.104.129	AS45374 CCS	`3.95ms` from Seoul, KR
210.121.21.111	AS45374 CCS	`3.90ms` from Seoul, KR
210.121.125.45	AS45374 CCS	`4.54ms` from Incheon, KR
210.121.76.6	AS45374 CCS	`5.05ms` from Incheon, KR
210.121.93.3	AS45374 CCS	`4.44ms` from Seoul, KR
210.121.81.27	AS45374 CCS	`4.01ms` from Seoul, KR
210.121.6.134	AS45374 CCS	`3.89ms` from Seoul, KR
210.121.8.6	AS45374 CCS	`4.99ms` from Seoul, KR
210.121.108.94	AS45374 CCS	`4.07ms` from Seoul, KR
210.121.86.228	AS45374 CCS	`8.71ms` from Seoul, KR
210.121.90.26	AS45374 CCS	`3.97ms` from Seoul, KR
210.121.118.43	AS45374 CCS	`4.41ms` from Incheon, KR
210.121.99.147	AS45374 CCS	`5.09ms` from Incheon, KR
210.121.121.26	AS45374 CCS	`5.06ms` from Incheon, KR
210.121.113.146	AS45374 CCS	`4.28ms` from Seoul, KR
210.121.72.59	AS45374 CCS	`5.33ms` from Seoul, KR
210.121.11.122	AS45374 CCS	`4.27ms` from Seoul, KR
210.121.91.80	AS45374 CCS	`5.14ms` from Incheon, KR
210.121.85.64	AS45374 CCS	`9.96ms` from Seoul, KR
210.121.105.30	AS45374 CCS	`4.26ms` 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
80.112.70.1	AS33915 Vodafone Libertel B.V.	`1.76ms` from Amsterdam, NL
74.112.200.17	AS11288 InfraDMS	`2.55ms` from Ashburn, US
151.145.128.129	AS20115 Charter Communications LLC	`0.83ms` from Ashburn, US
190.216.71.241	AS3549 Level 3 Parent, LLC	`0.51ms` from Buenos Aires, AR
41.47.192.33	AS8452 TE-AS	`2.99ms` from Cairo, EG
122.156.44.1	AS4837 CHINA UNICOM China169 Backbone	`12.14ms` from Changchun, CN
125.69.83.1	AS4134 CHINANET-BACKBONE	`3.62ms` from Chengdu, CN
183.221.83.1	AS9808 China Mobile Communications Group Co., Ltd.	`3.88ms` from Chengdu, CN
150.195.52.1	AS30036 Mediacom Communications Corp	`12.16ms` from Chicago, US
113.251.79.65	AS4134 CHINANET-BACKBONE	`0.95ms` from Chongqing, CN
174.77.208.129	AS22773 Cox Communications Inc.	`10.77ms` from Dallas, US
66.209.242.1	AS46694 South Plains Telephone Cooperative, Inc.	`10.34ms` from Dallas, US
206.42.24.81	AS28126 BRISANET SERVICOS DE TELECOMUNICACOES S.A	`3.16ms` from Fortaleza, BR
217.235.189.17	AS3320 Deutsche Telekom AG	`7.92ms` from Frankfurt am Main, DE
84.23.85.1	AS35366 ISPpro Internet KG	`8.01ms` from Frankfurt am Main, DE
178.217.37.1	AS29245 REYU.NET Sp. z o. o.	`8.52ms` from Gdansk, PL
120.233.114.241	AS56040 China Mobile communications corporation	`3.03ms` from Guangzhou, CN
182.240.130.1	AS4134 CHINANET-BACKBONE	`12.58ms` from Guiyang, CN
80.146.116.1	AS3320 Deutsche Telekom AG	`4.33ms` from Hamburg, DE
80.221.56.161	AS1759 Telia Finland Oyj	`1.64ms` from Helsinki, FI
49.74.7.193	AS4134 CHINANET-BACKBONE	`0.45ms` from Huai'an, CN
182.208.79.209	AS17858 LG POWERCOMM	`1.89ms` from Incheon, KR
61.251.216.225	AS38096 SK Broadband Co Ltd	`1.34ms` from Incheon, KR
39.122.111.1	AS9318 SK Broadband Co Ltd	`2.11ms` from Incheon, KR
102.132.33.1	AS327996 Accelerit Technologies PTY LTD	`0.21ms` 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 -f4 -m8 210.121.68.231

traceroute to 210.121.68.231 (210.121.68.231): 8 hops max, 52 byte packets

4 [AS6939] 184.105.222.6 4.062 ms

5 [AS6939] 64.71.165.22 1.296 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Fremont, US

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.

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