210.103.155.0/24

AS38676 · flexnetworks

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Summary

Country	South Korea
Domain	sejongnetworks.com
ASN	AS38676
Parent Range	210.103.128.0/17
Registry	APNIC
ID	SHINBIRO

WHOIS Details

inetnum:        210.103.224.0 - 210.103.255.255
netname:        KRNIC-KR
descr:          KRNIC
descr:          Korea Network Information Center
country:        KR
admin-c:        HM127-AP
tech-c:         HM127-AP
remarks:        ******************************************
remarks:        KRNIC is the National Internet Registry
remarks:        in Korea under APNIC. If you would like to
remarks:        find assignment information in detail
remarks:        please refer to the KRNIC Whois DB
remarks:        http://whois.nic.or.kr/english/index.html
remarks:        ******************************************
mnt-by:         MNT-KRNIC-AP
mnt-lower:      MNT-KRNIC-AP
status:         ALLOCATED PORTABLE
last-modified:  2017-12-20T07:17:13Z
source:         APNIC
mnt-irt:        IRT-KRNIC-KR

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:         Host Master
address:        Jeollanam-do Naju-si Jinheung-gil
country:        KR
phone:          +82-2-405-5118
e-mail:         hostmaster@nic.or.kr
nic-hdl:        HM127-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2019-05-22T01:20:31Z
source:         APNIC

inetnum:        210.103.128.0 - 210.103.255.255
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
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:        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 210.103.155.0/24

Range	ASN	Company	Num of IPs
210.103.128.0/17	AS131866	SEJONG NETWORKS	32,768
210.103.128.0/17	AS23593	SEJONG NETWORKS	32,768
210.103.128.0/17	AS38676	SEJONG NETWORKS	32,768
210.103.128.0/17	AS9848	SEJONG NETWORKS	32,768

Nearby Ranges

BGP prefixes that overlap with 210.103.0.0/16

Range	ASN	Company	Num of IPs
210.103.128.0/17	AS131866	SEJONG NETWORKS	32,768
210.103.128.0/17	AS23593	SEJONG NETWORKS	32,768
210.103.128.0/17	AS38676	SEJONG NETWORKS	32,768
210.103.128.0/17	AS9848	SEJONG NETWORKS	32,768

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

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

IP Address	ASN	Details
210.103.155.254	AS38676 flexnetworks	`1.01ms` 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
91.83.35.168	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	`3.97ms` from Budapest, HU
3.138.233.8	AS16509 Amazon.com, Inc.	`0.17ms` from Columbus, US
20.204.201.152	AS8075 Microsoft Corporation	`0.14ms` from Lohogaon, IN
81.103.158.120	AS5089 Virgin Media Limited	`8.15ms` from London, GB
195.208.182.72	AS205822 Limited Liability Company "DEVINO TELECOM"	`1.14ms` from Moscow, RU
13.210.191.8	AS16509 Amazon.com, Inc.	`0.11ms` from Sydney, AU
20.194.222.136	AS8075 Microsoft Corporation	`0.17ms` from Tokyo, JP
81.195.239.72	AS8359 MTS PJSC	`12.63ms` from Vladivostok, RU
104.25.220.88	AS13335 Cloudflare, Inc.	`0.13ms` from Yerevan, AM
172.9.55.216	AS7018 AT&T Enterprises, LLC	`19.78ms` from Chicago, US
85.23.56.248	AS16086 DNA Oyj	`3.22ms` from Helsinki, FI
27.64.180.56	AS7552 Viettel Group	`2.85ms` from Ho Chi Minh City, VN
182.180.99.136	AS17557 Pakistan Telecommunication Company Limited	`1.89ms` from Islamabad, PK
82.153.25.152	AS8851 GCI Network Solutions Limited	`5.43ms` from London, GB
69.147.248.88	AS395954 Leaseweb USA, Inc.	`0.23ms` from Los Angeles, US
216.36.223.232	AS46410 Central Florida Electric Cooperative, Inc.	`11.06ms` from Miami, US
46.235.9.72	AS201183 VoipTel Italia S.r.l.	`1.26ms` from Milan, IT
18.228.168.168	AS16509 Amazon.com, Inc.	`0.14ms` from Osasco, BR
179.130.93.120	AS26599 TELEFÔNICA BRASIL S.A	`6.75ms` from Osasco, BR
44.213.150.200	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
189.97.95.136	AS27699 TELEFÔNICA BRASIL S.A	`3.67ms` from Sao Paulo, BR
40.131.44.152	AS7029 Windstream Communications LLC	`0.78ms` from Secaucus, US
124.54.45.24	AS17858 LG POWERCOMM	`7.25ms` from Seoul, KR
125.148.171.168	AS4766 Korea Telecom	`2.01ms` from Seoul, KR
119.207.80.136	AS4766 Korea Telecom	`10.21ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 210.103.155.1

traceroute to 210.103.155.1 (210.103.155.1): 64 hops max, 52 byte packets

1 [AS15169] 142.251.241.127 1.851 ms

2 [AS15169] 108.170.238.52 2.223 ms

3 *

4 [AS4766] 112.174.84.130 22.681 ms

5 [AS4766] 112.174.47.74 31.276 ms

6 *

7 [AS4766] 211.55.89.206 31.464 ms

8 [AS38676] 210.103.155.1 31.754 ms

Measurement taken from

IPinfo ProbeNet in Osaka, JP

On November 14th 2025

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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