61.100.128.0/18

AS9848 · SEJONG NETWORKS

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

Summary

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

WHOIS Details

inetnum:        61.100.128.0 - 61.100.191.255
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:  2025-11-03T05:34:03Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        9, Jinheung-gil, Naju-si, Jeollanam-do
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:  2025-09-04T01:00:01Z
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

inetnum:        61.100.128.0 - 61.100.191.255
netname:        SEJONG-KR
descr:          SEJONG NETWORKS
country:        KR
admin-c:        IA10-KR
tech-c:         IM10-KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
remarks:        This information has been partially mirrored by APNIC from
remarks:        KRNIC. To obtain more specific information, please use the
remarks:        KRNIC whois server at whois.kisa.or.kr.
source:         KRNIC

person:         IP Manager
address:        12 Gwacheon-daero 7-gil, Gwacheon-si, Gyeonggi-do
address:        (Galhyeondong)
country:        KR
phone:          +82-2-1688-2200
e-mail:         ip@sejongnetworks.com
nic-hdl:        IA10-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr 20240912
remarks:        This information has been partially mirrored by APNIC from
remarks:        KRNIC. To obtain more specific information, please use the
remarks:        KRNIC whois server at whois.kisa.or.kr.
source:         KRNIC

person:         IP Manager
address:        12 Gwacheon-daero 7-gil, Gwacheon-si, Gyeonggi-do
address:        (Galhyeondong)
country:        KR
phone:          +82-2-1688-2200
e-mail:         ip@sejongnetworks.com
nic-hdl:        IM10-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr 20240912
remarks:        This information has been partially mirrored by APNIC from
remarks:        KRNIC. To obtain more specific information, please use the
remarks:        KRNIC whois server at whois.kisa.or.kr.
source:         KRNIC

Overlapping Ranges

BGP prefixes that are contained by 61.100.128.0/18

Range	ASN	Company	Num of IPs
61.100.183.0/24	AS9952	Hostway	256
61.100.185.0/24	AS9952	Hostway	256
61.100.186.0/24	AS9952	Hostway	256

Nearby Ranges

BGP prefixes that overlap with 61.100.0.0/16

Range	ASN	Company	Num of IPs
61.100.0.0/17	AS9947	SEJONG NETWORKS	32,768
61.100.0.0/17	AS9848	SEJONG NETWORKS	32,768
61.100.0.0/17	AS152294	SEJONG NETWORKS	32,768
61.100.0.0/17	AS9952	SEJONG NETWORKS	32,768
61.100.192.0/19	AS18310	SK Broadband Co Ltd	8,192
61.100.40.0/21	AS131866	Digital Edge Korea	2,048
61.100.48.0/21	AS131866	Digital Edge Korea	2,048
61.100.240.0/21	AS45372	ULNetworks Co., Ltd.	2,048
61.100.29.0/24	AS38676	FLEXNET	256
61.100.28.0/24	AS38676	FLEXNET	256
61.100.27.0/24	AS38676	FLEXNET	256
61.100.26.0/24	AS38676	FLEXNET	256
61.100.12.0/24	AS9952	Hostway	256
61.100.25.0/24	AS38676	FLEXNET	256
61.100.13.0/24	AS9952	Hostway	256
61.100.183.0/24	AS9952	Hostway	256
61.100.185.0/24	AS9952	Hostway	256
61.100.186.0/24	AS9952	Hostway	256

Hosted domains

There are 512 domain names hosted across 139 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
61.100.189.120	yamyame.net	3
61.100.178.30	rankgame.kr	1

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

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

IP Address	ASN	Details
61.100.178.234	AS9848 SEJONG NETWORKS	`4.99ms` from Seoul, KR
61.100.184.130	AS9952 Hostway IDC	`1.00ms` from Seoul, KR
61.100.185.43	AS9952 Hostway IDC	`1.06ms` from Seoul, KR
61.100.188.182	AS9952 Hostway IDC	`1.05ms` from Seoul, KR
61.100.186.219	AS9952 Hostway IDC	`1.08ms` from Seoul, KR
61.100.181.131	AS9952 Hostway IDC	`1.25ms` from Seoul, KR
61.100.189.57	AS9848 SEJONG NETWORKS	`0.77ms` from Seoul, KR
61.100.177.1	AS9848 SEJONG NETWORKS	`6.54ms` from Seoul, KR
61.100.183.23	AS9952 Hostway IDC	`1.02ms` from Seoul, KR
61.100.187.99	AS9952 Hostway IDC	`0.91ms` from Seoul, KR
61.100.182.7	AS9952 Hostway IDC	`1.03ms` from Seoul, KR
61.100.180.218	AS9952 Hostway IDC	`0.94ms` from Seoul, KR
61.100.191.247	AS9952 Hostway IDC	`0.99ms` 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
149.29.3.66	AS174 Cogent Communications, LLC	`0.32ms` from Amsterdam, NL
89.20.92.66	AS41480 Systemec BV	`3.60ms` from Amsterdam, NL
62.250.254.146	AS50266 Odido Netherlands B.V.	`3.93ms` from Amsterdam, NL
150.136.4.242	AS31898 Oracle Corporation	`0.20ms` from Ashburn, US
196.127.192.2	AS36925 MEDITELECOM	`2.03ms` from Casablanca, MA
98.19.250.210	AS7029 Windstream Communications LLC	`11.33ms` from Chicago, US
72.191.37.162	AS11427 Charter Communications Inc	`5.14ms` from Dallas, US
98.20.112.2	AS7029 Windstream Communications LLC	`0.61ms` from Dallas, US
87.164.120.146	AS3320 Deutsche Telekom AG	`4.96ms` from Duesseldorf, DE
203.6.228.130	AS58519 Cloud Computing Corporation	`0.25ms` from Guiyang, CN
84.173.88.162	AS3320 Deutsche Telekom AG	`3.10ms` from Hamburg, DE
77.8.25.242	AS6805 Telefonica Germany GmbH & Co.OHG	`1.09ms` from Hamburg, DE
202.85.32.178	AS4515 PCCW IMS Ltd (PCCW Business Internet Access)	`2.07ms` from Hong Kong, HK
2.222.129.114	AS5607 Sky UK Limited	`4.66ms` from London, GB
143.159.17.98	AS6871 Plusnet	`2.65ms` from London, GB
165.254.155.98	AS2914 NTT America, Inc.	`0.17ms` from Los Angeles, US
37.157.157.226	AS6661 POST Luxembourg	`0.57ms` from Luxembourg, LU
91.173.8.130	AS12322 Free SAS	`2.48ms` from Paris, FR
88.188.120.66	AS12322 Free SAS	`6.17ms` from Paris, FR
4.155.193.210	AS8075 Microsoft Corporation	`0.34ms` from Quincy, US
200.186.53.98	AS3549 Level 3 Parent, LLC	`0.64ms` from Rio de Janeiro, BR
52.8.183.194	AS16509 Amazon.com, Inc.	`0.12ms` from San Jose, US
70.71.71.210	AS6327 Shaw Communications	`7.37ms` from Seattle, US
150.31.244.82	AS2497 Internet Initiative Japan Inc.	`2.19ms` from Tokyo, JP
111.99.107.130	AS2516 KDDI CORPORATION	`1.07ms` 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 -f2 -m7 61.100.144.100

traceroute to 61.100.144.100 (61.100.144.100): 7 hops max, 52 byte packets

2 [AS206170] 188.66.61.9 7.093 ms

3 *

4 [AS174] 154.54.57.97 8.523 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Taellberg, SE

On December 6th 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.

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