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:         [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:  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:         [email protected]
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:         [email protected]
nic-hdl:        IA10-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected] 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:         [email protected]
nic-hdl:        IM10-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected] 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 1,301 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	kccenc.net	13
61.100.80.13	chamsaju.net	7
61.100.80.12	bilab.kr	2
61.100.80.15	bestplan.kr	1
61.100.80.11	ksaju.kr	1
61.100.80.14	xpe.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
61.100.35.84	AS9848 SEJONG NETWORKS	`6.27ms` from Seoul, KR
61.100.31.137	AS9848 SEJONG NETWORKS	`6.38ms` from Seoul, KR
61.100.13.149	AS9952 Hostway IDC	`1.15ms` from Seoul, KR
61.100.71.21	AS9947 kt cloud Co., Ltd	`1.31ms` from Incheon, KR
61.100.48.17	AS131866 Digital Edge Korea	`1.19ms` from Seoul, KR
61.100.18.182	AS9848 SEJONG NETWORKS	`5.04ms` from Seoul, KR
61.100.29.1	AS38676 flexnetworks	`0.84ms` from Incheon, KR
61.100.68.10	AS9848 SEJONG NETWORKS	`1.11ms` from Seoul, KR
61.100.80.21	AS9848 SEJONG NETWORKS	`5.60ms` from Seoul, KR
61.100.9.33	AS9952 Hostway IDC	`1.04ms` from Seoul, KR
61.100.27.1	AS38676 flexnetworks	`1.17ms` from Seoul, KR
61.100.39.94	AS9848 SEJONG NETWORKS	`6.64ms` from Seoul, KR
61.100.4.129	AS9952 Hostway IDC	`0.96ms` from Seoul, KR
61.100.61.224	AS9848 SEJONG NETWORKS	`6.36ms` from Seoul, KR
61.100.70.201	AS9848 SEJONG NETWORKS	`0.92ms` from Seoul, KR
61.100.2.84	AS9952 Hostway IDC	`1.04ms` from Seoul, KR
61.100.10.165	AS9952 Hostway IDC	`1.13ms` from Seoul, KR
61.100.26.85	AS38676 flexnetworks	`0.72ms` from Incheon, KR
61.100.32.161	AS9848 SEJONG NETWORKS	`0.94ms` from Seoul, KR
61.100.12.229	AS9952 Hostway IDC	`1.07ms` from Seoul, KR
61.100.6.126	AS9952 Hostway IDC	`1.02ms` from Seoul, KR
61.100.34.239	AS9848 SEJONG NETWORKS	`6.43ms` from Seoul, KR
61.100.28.1	AS38676 flexnetworks	`0.82ms` from Incheon, KR
61.100.123.225	AS9848 SEJONG NETWORKS	`3.10ms` 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
92.111.216.129	AS33915 Vodafone Libertel B.V.	`5.39ms` from Amsterdam, NL
217.102.208.1	AS33915 Vodafone Libertel B.V.	`5.99ms` from Amsterdam, NL
69.178.80.1	AS8047 GENERAL COMMUNICATION, INC.	`8.00ms` from Anchorage, US
24.177.81.1	AS20115 Charter Communications LLC	`17.68ms` from Ashburn, US
188.4.58.193	AS1241 Forthnet	`6.86ms` from Athens, GR
97.80.160.1	AS20115 Charter Communications LLC	`1.97ms` from Atlanta, US
61.55.231.1	AS4837 CHINA UNICOM China169 Backbone	`8.58ms` from Beijing, CN
59.88.42.129	AS9829 National Internet Backbone	`15.73ms` from Bengaluru, IN
179.32.136.161	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`3.74ms` from Bogota, CO
2.81.199.1	AS3243 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`1.73ms` from Braga, PT
152.168.27.1	AS7303 Telecom Argentina S.A.	`1.22ms` from Buenos Aires, AR
181.231.230.1	AS7303 Telecom Argentina S.A.	`9.01ms` from Buenos Aires, AR
190.17.190.1	AS7303 Telecom Argentina S.A.	`1.84ms` from Buenos Aires, AR
181.168.108.1	AS7303 Telecom Argentina S.A.	`1.37ms` from Buenos Aires, AR
182.134.151.1	AS4134 CHINANET-BACKBONE	`8.32ms` from Chengdu, CN
199.182.1.1	AS12041 Afilias, Inc.	`0.13ms` from Chicago, US
208.126.138.1	AS30325 South Slope Cooperative Telephone Company	`5.07ms` from Chicago, US
72.25.140.1	AS7385 Allstream Business US, LLC	`8.18ms` from Chicago, US
87.63.145.113	AS3292 TDC Holding A/S	`1.36ms` from Copenhagen, DK
76.183.48.1	AS11427 Charter Communications Inc	`2.73ms` from Dallas, US
104.29.89.1	AS13335 Cloudflare, Inc.	`1.08ms` from Dallas, US
116.75.240.97	AS17488 Hathway IP Over Cable Internet	`1.87ms` from Delhi, IN
202.141.139.1	AS2697 Education and Research Network	`1.97ms` from Delhi, IN
115.113.189.1	AS4755 TATA Communications formerly VSNL is Leading ISP	`3.03ms` from Delhi, IN
68.43.176.1	AS7922 Comcast Cable Communications, LLC	`2.76ms` from Detroit, US

Traceroute

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

traceroute -a -n -q1 -f5 61.100.29.136

traceroute to 61.100.29.136 (61.100.29.136): 64 hops max, 52 byte packets

5 [AS24940] 213.239.239.41 5.014 ms

6 [AS24940] 213.239.227.210 0.34 ms

7 [AS24940] 213.239.254.214 2.866 ms

8 [AS201011] 5.56.20.253 2.933 ms

9 [AS201011] 5.56.18.94 84.236 ms

10 *

11 [AS4766] 112.174.87.45 735.379 ms

12 [AS4766] 112.174.86.189 277.735 ms

13 [AS4766] 112.174.47.202 285.737 ms

14 *

15 [AS4766] 211.55.89.206 325.424 ms

16 [AS38676] 111.67.216.174 251.761 ms

17 [AS38676] 61.100.29.136 287.147 ms

Measurement taken from

IPinfo ProbeNet in Falkenstein, DE

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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