1. All IP Ranges
  2. 61.0.0.0/8
  3. 61.100.0.0/16
  4. AS9848  | 61.100.0.0/17

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
61.100.80.21 AS9848 SEJONG NETWORKS 5.60ms from Seoul, KR
61.100.123.225 AS9848 SEJONG NETWORKS 3.10ms from Seoul, KR
61.100.36.63 AS9848 SEJONG NETWORKS 6.63ms from Seoul, KR
61.100.71.21 AS9947 kt cloud Co., Ltd 1.31ms from Incheon, KR
61.100.60.80 AS9848 SEJONG NETWORKS 0.85ms from Seoul, KR
61.100.79.229 AS9848 SEJONG NETWORKS 1.51ms from Seoul, KR
61.100.35.84 AS9848 SEJONG NETWORKS 6.27ms from Seoul, KR
61.100.48.17 AS131866 Digital Edge Korea 1.19ms from Seoul, KR
61.100.68.10 AS9848 SEJONG NETWORKS 1.11ms from Seoul, KR
61.100.61.224 AS9848 SEJONG NETWORKS 6.36ms from Seoul, KR
61.100.39.94 AS9848 SEJONG NETWORKS 6.64ms from Seoul, KR
61.100.41.42 AS131866 Digital Edge Korea 0.86ms from Seoul, KR
61.100.40.22 AS131866 Digital Edge Korea 0.77ms from Seoul, KR
61.100.122.95 AS9848 SEJONG NETWORKS 1.49ms from Seoul, KR
61.100.70.201 AS9848 SEJONG NETWORKS 0.92ms from Seoul, KR
61.100.7.147 AS9952 Hostway IDC 1.02ms from Seoul, KR
61.100.5.30 AS9952 Hostway IDC 1.08ms from Seoul, KR
61.100.2.84 AS9952 Hostway IDC 1.04ms from Seoul, KR
61.100.14.7 AS9952 Hostway IDC 1.09ms from Seoul, KR
61.100.9.33 AS9952 Hostway IDC 1.04ms from Seoul, KR
61.100.26.85 AS38676 flexnetworks 0.72ms from Incheon, KR
61.100.18.182 AS9848 SEJONG NETWORKS 5.04ms from Seoul, KR
61.100.16.105 AS9848 SEJONG NETWORKS 1.07ms from Seoul, KR
61.100.6.126 AS9952 Hostway IDC 1.02ms from Seoul, KR
61.100.1.248 AS9952 Hostway IDC 1.16ms 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
197.159.203.49 AS37381 Afrique Technologies & Services (VipNet) 1.87ms from Abidjan, CI
92.111.216.129 AS33915 Vodafone Libertel B.V. 5.39ms from Amsterdam, NL
80.57.160.1 AS33915 Vodafone Libertel B.V. 2.85ms from Amsterdam, NL
173.19.40.1 AS30036 Mediacom Communications Corp 6.45ms from Atlanta, US
124.121.192.1 AS17552 True Online 3.12ms from Bangkok, TH
111.161.45.1 AS4837 CHINA UNICOM China169 Backbone 5.42ms from Beijing, CN
46.128.208.1 AS35244 Tele Columbus AG 10.22ms from Berlin, DE
184.179.59.1 AS22773 Cox Communications Inc. 3.09ms from Boston, US
222.209.136.1 AS4134 CHINANET-BACKBONE 2.34ms from Chengdu, CN
211.83.6.193 AS4538 China Education and Research Network Center 11.31ms from Chengdu, CN
199.182.1.1 AS12041 Afilias, Inc. 0.13ms from Chicago, US
207.229.165.97 AS6079 RCN 0.40ms from Chicago, US
97.243.72.161 AS6167 Verizon Business 12.13ms from Chicago, US
131.241.95.1 AS6181 Cincinnati Bell Telephone Company LLC 1.93ms from Cincinnati, US
85.218.170.65 AS39642 Norlys Digital A/S 14.39ms from Copenhagen, DK
177.55.86.65 AS28591 METRO TELECOMUNICAÇÕES S/A 0.35ms from Curitiba, BR
98.186.144.65 AS22773 Cox Communications Inc. 12.46ms from Dallas, US
112.196.119.81 AS17917 Quadrant Televentures Limited 6.35ms from Delhi, IN
98.43.33.129 AS7922 Comcast Cable Communications, LLC 5.58ms from Denver, US
209.178.196.65 AS14374 Agri-Valley Services Corporation 7.54ms from Flint, US
200.209.53.1 AS4230 CLARO S.A. 7.14ms from Fortaleza, BR
216.173.107.17 AS205659 UAB code200 0.55ms from Frankfurt am Main, DE
2.201.25.225 AS3209 Vodafone GmbH 7.11ms from Frankfurt am Main, DE
171.64.217.1 AS32 Stanford University 1.55ms from Fremont, US
27.156.99.1 AS4134 CHINANET-BACKBONE 1.94ms from Fuzhou, CN

Traceroute

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

$
traceroute -a -n -q1 -f4 61.100.10.120
traceroute to 61.100.10.120 (61.100.10.120): 64 hops max, 52 byte packets
4 [AS9848] 203.231.88.65 0.997 ms
7 *
9 [AS9952] 61.100.10.120 1.379 ms
Measurement taken from IPinfo ProbeNet in Seoul, KR
On

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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