61.100.0.0/17

AS9848 · SEJONG NETWORKS

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Summary

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

WHOIS Details

inetnum:        61.100.0.0 - 61.100.127.255
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:  2025-11-03T05:34:02Z
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:        61.100.0.0 - 61.100.127.255
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 61.100.0.0/17

Range	ASN	Company	Num of IPs
61.100.29.0/24	AS38676	FLEXNET	256
61.100.25.0/24	AS38676	FLEXNET	256
61.100.26.0/24	AS38676	FLEXNET	256
61.100.27.0/24	AS38676	FLEXNET	256
61.100.28.0/24	AS38676	FLEXNET	256
61.100.12.0/24	AS9952	Hostway	256
61.100.13.0/24	AS9952	Hostway	256
61.100.40.0/21	AS131866	Digital Edge Korea	2,048
61.100.48.0/21	AS131866	Digital Edge Korea	2,048

Nearby Ranges

BGP prefixes that overlap with 61.100.0.0/16

Range	ASN	Company	Num of IPs
61.100.128.0/18	AS9952	SEJONG NETWORKS	16,384
61.100.128.0/18	AS9848	SEJONG NETWORKS	16,384
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 1,303 domain names hosted across 190 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
61.100.16.132	welltztower.net	13
61.100.80.13	jabcd.com	7
61.100.80.12	bilab.kr	2
61.100.80.14	xpe.kr	1
61.100.80.11	ksaju.kr	1
61.100.80.15	bestplan.kr	1
61.100.122.3	dopco.co.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

1,202 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
61.100.68.10	AS9848 SEJONG NETWORKS	`1.11ms` from Seoul, KR
61.100.34.239	AS9848 SEJONG NETWORKS	`6.43ms` from Seoul, KR
61.100.122.95	AS9848 SEJONG NETWORKS	`1.49ms` from Seoul, KR
61.100.123.225	AS9848 SEJONG NETWORKS	`3.10ms` from Seoul, KR
61.100.31.137	AS9848 SEJONG NETWORKS	`6.38ms` from Seoul, KR
61.100.61.224	AS9848 SEJONG NETWORKS	`6.36ms` from Seoul, KR
61.100.2.84	AS9952 Hostway IDC	`1.04ms` from Seoul, KR
61.100.70.201	AS9848 SEJONG NETWORKS	`0.92ms` from Seoul, KR
61.100.40.22	AS131866 Digital Edge Korea	`0.77ms` from Seoul, KR
61.100.14.7	AS9952 Hostway IDC	`1.09ms` from Seoul, KR
61.100.71.21	AS9947 kt cloud Co., Ltd	`1.31ms` from Incheon, KR
61.100.13.149	AS9952 Hostway IDC	`1.15ms` from Seoul, KR
61.100.6.126	AS9952 Hostway IDC	`1.02ms` from Seoul, KR
61.100.48.17	AS131866 Digital Edge Korea	`1.19ms` from Seoul, KR
61.100.5.30	AS9952 Hostway IDC	`1.08ms` from Seoul, KR
61.100.26.85	AS38676 flexnetworks	`0.72ms` from Incheon, KR
61.100.27.1	AS38676 flexnetworks	`1.17ms` from Seoul, KR
61.100.1.248	AS9952 Hostway IDC	`1.16ms` from Seoul, KR
61.100.60.80	AS9848 SEJONG NETWORKS	`0.85ms` from Seoul, KR
61.100.12.229	AS9952 Hostway IDC	`1.07ms` from Seoul, KR
61.100.41.42	AS131866 Digital Edge Korea	`0.86ms` from Seoul, KR
61.100.33.249	AS9848 SEJONG NETWORKS	`6.56ms` from Seoul, KR
61.100.17.104	AS9848 SEJONG NETWORKS	`1.10ms` from Seoul, KR
61.100.10.165	AS9952 Hostway IDC	`1.13ms` from Seoul, KR
61.100.25.1	AS38676 flexnetworks	`0.82ms` 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
87.208.252.1	AS50266 Odido Netherlands B.V.	`3.26ms` from Amsterdam, NL
173.21.153.1	AS30036 Mediacom Communications Corp	`10.10ms` from Atlanta, US
5.250.209.209	AS44725 Sinam LLC	`15.02ms` from Baku, AZ
59.88.42.129	AS9829 National Internet Backbone	`15.73ms` from Bengaluru, IN
184.179.59.1	AS22773 Cox Communications Inc.	`3.09ms` from Boston, US
191.176.200.1	AS28573 Claro NXT Telecomunicacoes Ltda	`0.93ms` from Brasilia, BR
200.55.102.1	AS7303 Telecom Argentina S.A.	`1.15ms` from Buenos Aires, AR
102.182.118.1	AS37611 AFRIHOST SP (PTY) LTD	`1.31ms` from Cape Town, ZA
65.58.209.161	AS3356 Level 3 Parent, LLC	`0.92ms` from Cincinnati, US
38.194.100.1	AS15081 Omni Fiber	`3.36ms` from Columbus, US
192.225.245.1	AS394111 Foothills Rural Telephone Cooperative Corporation, Inc.	`5.76ms` from Columbus, US
69.92.221.1	AS11492 CABLE ONE, INC.	`13.84ms` from Dallas, US
184.188.98.193	AS22773 Cox Communications Inc.	`12.49ms` from Dallas, US
59.99.117.33	AS9829 National Internet Backbone	`11.93ms` from Delhi, IN
213.233.144.33	AS15502 Vodafone Ireland Limited	`0.89ms` from Dublin, IE
158.180.28.17	AS31898 Oracle Corporation	`0.31ms` from Frankfurt am Main, DE
183.252.32.1	AS9808 China Mobile Communications Group Co., Ltd.	`12.13ms` from Fuzhou, CN
90.141.14.193	AS1257 Tele2 Sverige AB	`0.46ms` from Goeteborg, SE
181.209.158.225	AS14754 TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD ANONIMA	`0.59ms` from Guatemala City, GT
221.153.8.1	AS4766 Korea Telecom	`1.81ms` from Incheon, KR
43.96.8.1	AS45102 Alibaba (US) Technology Co., Ltd.	`0.74ms` from Jakarta, ID
114.7.204.193	AS4761 INDOSAT Internet Network Provider	`17.90ms` from Jakarta, ID
98.158.85.177	AS15830 Equinix (EMEA) Acquisition Enterprises B.V.	`3.03ms` from Kelowna, CA
42.203.27.1	AS4134 CHINANET-BACKBONE	`8.75ms` from Liaoyang, CN
79.93.230.1	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`10.98ms` from Lyon, FR

Traceroute

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

traceroute -a -n -q1 -m6 61.100.95.59

traceroute to 61.100.95.59 (61.100.95.59): 6 hops max, 52 byte packets

1 [AS59187] 154.221.35.1 6.616 ms

2 *

3 [AS9583] 1.7.50.236 2.386 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Mumbai, IN

On January 18th 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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