61.100.128.0/18

AS9848 · SEJONG NETWORKS

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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	AS214432	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.co.kr	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

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

IP Address	ASN	Details
61.100.191.244	AS9952 Hostway IDC	`1.25ms` from Seoul, KR
61.100.183.46	AS9952 Hostway IDC	`1.08ms` from Seoul, KR
61.100.186.219	AS9952 Hostway IDC	`1.10ms` from Seoul, KR
61.100.181.131	AS9952 Hostway IDC	`1.42ms` from Seoul, KR
61.100.182.7	AS9952 Hostway IDC	`1.00ms` from Seoul, KR
61.100.178.223	AS9848 SEJONG NETWORKS	`5.05ms` from Seoul, KR
61.100.189.57	AS9848 SEJONG NETWORKS	`1.03ms` from Seoul, KR
61.100.184.77	AS9952 Hostway IDC	`1.10ms` from Seoul, KR
61.100.188.221	AS9952 Hostway IDC	`1.20ms` from Seoul, KR
61.100.177.1	AS9848 SEJONG NETWORKS	`5.90ms` from Seoul, KR
61.100.185.43	AS9952 Hostway IDC	`1.05ms` from Seoul, KR
61.100.180.225	AS9952 Hostway IDC	`1.00ms` from Seoul, KR
61.100.187.99	AS9952 Hostway IDC	`0.97ms` 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
139.144.220.34	AS63949 Akamai Connected Cloud	`0.29ms` from Ashburn, US
201.244.138.34	AS19429 ETB - Colombia	`0.95ms` from Bogota, CO
75.183.126.18	AS11426 Charter Communications Inc	`13.39ms` from Charlotte, US
152.5.8.2	AS11540 Research Triangle Institute	`6.35ms` from Charlotte, US
45.25.52.130	AS7018 AT&T Enterprises, LLC	`12.73ms` from Chicago, US
204.57.74.2	AS3356 Level 3 Parent, LLC	`8.16ms` from Dallas, US
87.139.75.66	AS3320 Deutsche Telekom AG	`3.76ms` from Duesseldorf, DE
68.55.5.114	AS7922 Comcast Cable Communications, LLC	`8.05ms` from Flint, US
89.110.177.66	AS24989 Equinix (Germany) GmbH	`1.25ms` from Frankfurt am Main, DE
122.179.20.146	AS24560 Bharti Airtel Ltd., Telemedia Services	`10.71ms` from Kolkata, IN
81.98.76.82	AS5089 Virgin Media Limited	`8.54ms` from London, GB
223.120.168.66	AS58807 China Mobile International Limited	`0.84ms` from London, GB
12.29.232.34	AS7018 AT&T Enterprises, LLC	`1.67ms` from Los Angeles, US
190.2.134.146	AS49981 WorldStream	`0.12ms` from Naaldwijk, NL
111.96.94.66	AS2516 KDDI CORPORATION	`9.95ms` from Osaka, JP
3.175.102.2	AS16509 Amazon.com, Inc.	`0.12ms` from Perth, AU
177.194.216.50	AS28573 Claro NXT Telecomunicacoes Ltda	`9.64ms` from Porto Alegre, BR
74.224.127.2	AS8075 Microsoft Corporation	`0.28ms` from Saint Thomas Mount, IN
46.97.68.226	AS12302 Vodafone Romania S.A.	`0.54ms` from Timisoara, RO
60.117.23.2	AS17676 SoftBank Corp.	`2.61ms` from Tokyo, JP
39.111.80.162	AS2527 Sony Network Communications Inc.	`1.82ms` from Tokyo, JP
20.33.232.162	AS8069 Microsoft Corporation	`0.27ms` from Amsterdam, NL
98.20.33.226	AS7029 Windstream Communications LLC	`3.15ms` from Atlanta, US
3.23.185.226	AS16509 Amazon.com, Inc.	`0.19ms` from Columbus, US
204.132.92.194	AS209 CenturyLink Communications, LLC	`10.72ms` from Denver, US

Traceroute

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

traceroute -a -n -q1 -f4 61.100.191.241

traceroute to 61.100.191.241 (61.100.191.241): 64 hops max, 52 byte packets

4 [AS9848] 203.231.88.65 1.016 ms

5 [AS9848] 211.116.176.78 1.059 ms

6 [AS9848] 61.109.130.226 1.181 ms

7 [AS9952] 61.100.191.241 2.742 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On January 19th 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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