103.81.176.0/22

AS9370 · SAKURA Internet Inc.

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Summary

Country	Japan
Domain	sei-tou.jp
ASN	AS9370
Registry	JPNIC
ID	SEI-TOU-CIDR-BLK-JP

WHOIS Details

inetnum:        103.81.176.0 - 103.81.179.255
netname:        SEI-TOU
descr:          Seitou CO., LTD.
descr:          vivagrande-kourin 305
descr:          2-1-8 arai nakano-ku,
descr:          Tokyo,Japan
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
remarks:        Email address for spam or abuse complaints : abuse@sei-tou.jp
country:        JP
mnt-by:         MAINT-JPNIC
mnt-lower:      MAINT-JPNIC
mnt-irt:        IRT-JPNIC-JP
status:         ALLOCATED PORTABLE
changed:        hm-changed@apnic.net 20161214
source:         APNIC

irt:            IRT-JPNIC-JP
address:        Urbannet-Kanda Bldg 4F, 3-6-2 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, Japan
e-mail:         hostmaster@nic.ad.jp
abuse-mailbox:  hostmaster@nic.ad.jp
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
auth:           # Filtered
mnt-by:         MAINT-JPNIC
changed:        abuse@apnic.net 20101108
changed:        hm-changed@apnic.net 20101111
changed:        ip-apnic@nic.ad.jp 20140702
source:         APNIC

role:           Japan Network Information Center
address:        Urbannet-Kanda Bldg 4F
address:        3-6-2 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047,Japan
country:        JP
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
e-mail:         hostmaster@nic.ad.jp
admin-c:        JI13-AP
tech-c:         JE53-AP
nic-hdl:        JNIC1-AP
mnt-by:         MAINT-JPNIC
changed:        hm-changed@apnic.net 20041222
changed:        hm-changed@apnic.net 20050324
changed:        ip-apnic@nic.ad.jp 20051027
changed:        ip-apnic@nic.ad.jp 20120828
source:         APNIC

inetnum:        103.81.176.0 - 103.81.179.255
netname:        SEI-TOU-CIDR-BLK-JP
descr:          Seitou CO., LTD.
remarks:        Email address for spam or abuse complaints : abuse@sei-tou.jp
country:        JP
admin-c:        JP00138195
tech-c:         JP00138195
remarks:        This information has been partially mirrored by APNIC from
remarks:        JPNIC. To obtain more specific information, please use the
remarks:        JPNIC WHOIS Gateway at
remarks:        http://www.nic.ad.jp/en/db/whois/en-gateway.html or
remarks:        whois.nic.ad.jp for WHOIS client. (The WHOIS client
remarks:        defaults to Japanese output, use the /e switch for English
remarks:        output)
changed:        apnic-ftp@nic.ad.jp 20161215
source:         JPNIC

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

1,013 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
103.81.177.35	AS9370 SAKURA Internet Inc.	`1.13ms` from Tokyo, JP
103.81.176.2	AS9370 SAKURA Internet Inc.	`1.12ms` from Tokyo, JP
103.81.179.254	AS9370 SAKURA Internet Inc.	`1.03ms` from Tokyo, JP
103.81.178.220	AS9370 SAKURA Internet Inc.	`1.19ms` from Tokyo, JP

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
2.84.106.150	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`1.76ms` from Athens, GR
211.26.0.230	AS9443 Vocus Retail	`1.80ms` from Brisbane, AU
46.214.0.102	AS48161 NEXTGEN COMMUNICATIONS SRL	`8.17ms` from Bucharest, RO
205.200.79.38	AS7122 Bell Canada	`16.10ms` from Chicago, US
68.49.214.6	AS7922 Comcast Cable Communications, LLC	`12.74ms` from Chicago, US
93.195.141.38	AS3320 Deutsche Telekom AG	`7.14ms` from Hamburg, DE
123.24.63.182	AS45899 VNPT Corp	`1.74ms` from Hanoi, VN
115.75.241.6	AS7552 Viettel Group	`2.65ms` from Ho Chi Minh City, VN
62.249.237.214	AS8468 ENTANET International Limited	`5.15ms` from London, GB
47.146.114.150	AS5650 Frontier Communications of America, Inc.	`3.33ms` from Los Angeles, US
5.224.2.86	AS12430 VODAFONE ESPANA S.A.U.	`10.67ms` from Madrid, ES
109.208.34.6	AS3215 Orange S.A.	`8.41ms` from Marseille, FR
15.156.97.54	AS16509 Amazon.com, Inc.	`0.83ms` from Montreal, CA
178.178.105.6	AS31133 PJSC MegaFon	`3.86ms` from Moscow, RU
27.117.250.198	AS9756 SK Broadband Co Ltd	`2.90ms` from Seoul, KR
34.84.24.230	AS396982 Google LLC	`0.17ms` from Tokyo, JP
89.174.83.6	AS12912 T-Mobile Polska S.A.	`1.10ms` from Warsaw, PL
37.228.68.134	AS35104 Jusan Mobile JSC	`0.43ms` from Almaty, KZ
171.4.119.198	AS45758 Triple T Broadband Public Company Limited	`4.63ms` from Bangkok, TH
95.76.197.54	AS12302 Vodafone Romania S.A.	`7.18ms` from Bucharest, RO
84.186.159.198	AS3320 Deutsche Telekom AG	`4.61ms` from Duesseldorf, DE
91.182.166.38	AS5432 Proximus NV	`6.18ms` from Gravelines, FR
119.29.185.134	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.95ms` from Guangzhou, CN
84.250.142.246	AS1759 Telia Finland Oyj	`5.86ms` from Helsinki, FI
84.231.46.6	AS719 Elisa Oyj	`12.48ms` from Helsinki, FI

Traceroute

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

traceroute -a -n -q1 -m5 103.81.177.102

traceroute to 103.81.177.102 (103.81.177.102): 5 hops max, 52 byte packets

1 [AS136258] 185.213.23.211 0.137 ms

2 [AS56655] 185.125.170.252 0.114 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Oslo, NO

On August 22nd 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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