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
52.32.198.200	AS16509 Amazon.com, Inc.	`0.12ms` from Boardman, US
73.123.60.216	AS7922 Comcast Cable Communications, LLC	`8.91ms` from Boston, US
176.63.56.152	AS21334 One Hungary Ltd.	`6.35ms` from Budapest, HU
153.0.192.72	AS4837 CHINA UNICOM China169 Backbone	`11.03ms` from Guangzhou, CN
113.125.179.40	AS58519 Cloud Computing Corporation	`0.30ms` from Guiyang, CN
36.94.12.40	AS7713 PT Telekomunikasi Indonesia	`6.30ms` from Jakarta, ID
83.105.246.88	AS5378 Vodafone Limited	`3.33ms` from Manchester, GB
155.52.183.72	AS40831 Mass General Brigham Incorporated	`5.70ms` from Providence, US
180.230.160.152	AS17858 LG POWERCOMM	`1.88ms` from Seoul, KR
121.155.164.72	AS4766 Korea Telecom	`3.09ms` from Seoul, KR
77.28.205.152	AS6821 Makedonski Telekom AD-Skopje	`1.48ms` from Skopje, MK
209.17.82.24	AS2527 Sony Network Communications Inc.	`2.07ms` from Tokyo, JP
153.205.173.56	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.32ms` from Tokyo, JP
115.55.34.248	AS4837 CHINA UNICOM China169 Backbone	`5.09ms` from Zhengzhou, CN
68.55.148.216	AS7922 Comcast Cable Communications, LLC	`8.43ms` from Flint, US
193.209.52.248	AS1759 Telia Finland Oyj	`15.39ms` from Helsinki, FI
14.164.251.88	AS45899 VNPT Corp	`6.51ms` from Ho Chi Minh City, VN
61.77.221.248	AS4766 Korea Telecom	`1.70ms` from Incheon, KR
175.158.100.184	AS26658 HT	`0.25ms` from Los Angeles, US
97.164.216.120	AS6167 Verizon Business	`11.57ms` from Miami, US
211.5.168.8	AS2516 KDDI CORPORATION	`2.77ms` from Osaka, JP
116.58.176.72	AS2514 NTT PC Communications, Inc.	`2.35ms` from Tokyo, JP
77.169.164.72	AS1136 KPN B.V.	`2.38ms` from Amsterdam, NL
149.238.80.40	AS216134 ZF Friedrichshafen AG	`6.38ms` from Chicago, US
192.184.113.248	AS395773 Collegis Education	`1.64ms` from Chicago, 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.

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