61.100.37.0/24

AS214432 · Zhilian Technology CO., LTD.

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Summary

Country	South Korea
Domain	sejongnetworks.com
ASN	AS214432
Parent Range	61.100.0.0/17
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 contain 61.100.37.0/24

Range	ASN	Company	Num of IPs
61.100.0.0/17	AS9947	SEJONG NETWORKS	32,768
61.100.0.0/17	AS9952	SEJONG NETWORKS	32,768
61.100.0.0/17	AS214432	SEJONG NETWORKS	32,768
61.100.0.0/17	AS152294	SEJONG NETWORKS	32,768
61.100.0.0/17	AS9848	SEJONG NETWORKS	32,768

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
61.100.128.0/18	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 no domains currently hosted on this ASN.

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

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

IP Address	ASN	Details
61.100.37.21	AS214432 Zhilian Technology CO., LTD.	`1.10ms` 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
201.237.120.104	AS11830 Instituto Costarricense de Electricidad y Telecom.	`6.21ms` from Curridabat, CR
84.169.123.56	AS3320 Deutsche Telekom AG	`2.81ms` from Duesseldorf, DE
3.75.220.104	AS16509 Amazon.com, Inc.	`0.44ms` from Frankfurt am Main, DE
113.125.179.40	AS58519 Cloud Computing Corporation	`0.30ms` from Guiyang, CN
70.138.250.184	AS7018 AT&T Enterprises, LLC	`19.00ms` from Houston, US
76.167.118.136	AS20001 Charter Communications Inc	`6.56ms` from Los Angeles, US
107.178.178.184	AS26658 HT	`0.25ms` from Los Angeles, US
43.204.14.56	AS16509 Amazon.com, Inc.	`0.13ms` from Mumbai, IN
153.197.150.232	AS4713 NTT DOCOMO BUSINESS,Inc.	`6.09ms` from Osaka, JP
87.10.0.120	AS3269 Telecom Italia S.p.A.	`4.63ms` from Rome, IT
87.64.4.152	AS5432 Proximus NV	`2.09ms` from Brussels, BE
88.81.116.152	AS39093 WESTNET BROADBAND MAYO LIMITED	`4.03ms` from Dublin, IE
81.38.71.232	AS3352 TELEFONICA DE ESPANA S.A.U.	`9.41ms` from Madrid, ES
82.26.107.232	AS6762 TELECOM ITALIA SPARKLE S.p.A.	`0.14ms` from Milan, IT
84.164.231.88	AS3320 Deutsche Telekom AG	`5.56ms` from Nuernberg, DE
180.50.68.184	AS4713 NTT DOCOMO BUSINESS,Inc.	`6.46ms` from Osaka, JP
3.94.122.8	AS14618 Amazon.com, Inc.	`0.57ms` from Reston, US
98.247.34.8	AS7922 Comcast Cable Communications, LLC	`2.12ms` from Seattle, US
111.241.109.216	AS3462 Data Communication Business Group	`1.23ms` from Taipei, TW
209.17.82.24	AS2527 Sony Network Communications Inc.	`2.07ms` from Tokyo, JP
198.38.16.40	AS3140 The Thomas Jefferson High School for Science and Tech.	`2.51ms` from Ashburn, US
135.237.66.184	AS8075 Microsoft Corporation	`0.43ms` from Ashburn, US
24.34.46.88	AS7922 Comcast Cable Communications, LLC	`8.87ms` from Boston, US
185.21.164.72	AS60351 Geib IT GmbH	`3.67ms` from Frankfurt am Main, DE
73.27.222.200	AS7922 Comcast Cable Communications, LLC	`12.04ms` from Miami, 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 61.100.37.252

traceroute to 61.100.37.252 (61.100.37.252): 64 hops max, 52 byte packets

4 [AS9848] 203.231.88.65 0.954 ms

5 [AS9848] 211.116.176.76 0.975 ms

6 [AS9848] 203.231.86.206 1.658 ms

7 [AS46011] 49.238.225.250 18.234 ms

8 [AS214432] 61.100.37.252 1.57 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On February 16th 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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