202.51.8.0/21

AS23661  ·  CLARA, Inc.

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Summary

Country Japan
Domain clara.co.jp
ASN AS23661
Registry APNIC
ID CLARAO-TOKYO

WHOIS Details

inetnum:        202.51.8.0 - 202.51.15.255
netname:        CLARAO-TOKYO
descr:          Clara Online, Inc.
descr:          Web Hosting and Dedicated Server Provider.
descr:          Tokyo Data Center, Japan.
country:        JP
org:            ORG-COI1-AP
admin-c:        CNO11-AP
tech-c:         CNO11-AP
abuse-c:        AC1717-AP
status:         ALLOCATED PORTABLE
remarks:        Send abuse reports to [email protected]
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-JP-CLARA
mnt-routes:     MAINT-JP-CLARA
mnt-irt:        IRT-CLARA-JP
last-modified:  2024-05-22T02:12:41Z
source:         APNIC

irt:            IRT-CLARA-JP
address:        4F, ACN Tamachi Building
address:        4-5-10, Shiba
address:        Minato-ku, Tokyo, 108-0014
address:        Japan
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CNO11-AP
tech-c:         CNO11-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-09-30
mnt-by:         MAINT-JP-CLARA
last-modified:  2025-11-18T00:26:18Z
source:         APNIC

organisation:   ORG-COI1-AP
org-name:       CLARA, Inc.
org-type:       LIR
country:        JP
address:        4F, ACN Tamachi Building
address:        4-5-10, Shiba
phone:          +81-3-4213-0777
fax-no:         +81-3-6453-7552
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2025-03-26T12:57:32Z
source:         APNIC

role:           ABUSE CLARAJP
country:        ZZ
address:        4F, ACN Tamachi Building
address:        4-5-10, Shiba
address:        Minato-ku, Tokyo, 108-0014
address:        Japan
phone:          +000000000
e-mail:         [email protected]
admin-c:        CNO11-AP
tech-c:         CNO11-AP
nic-hdl:        AC1717-AP
remarks:        Generated from irt object IRT-CLARA-JP
remarks:        [email protected] was validated on 2025-09-30
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-30T21:59:21Z
source:         APNIC

person:         Clara Network Operations
address:        4F, ACN Tamachi Building
address:        4-5-10, Shiba
address:        Minato-ku, Tokyo, 108-0014
country:        JP
phone:          +81-3-4213-0778
fax-no:         +81-3-6453-7552
e-mail:         [email protected]
nic-hdl:        CNO11-AP
mnt-by:         MAINT-JP-CLARA
last-modified:  2025-03-26T00:18:25Z
source:         APNIC

route:          202.51.8.0/21
descr:          CLARA, Inc.
origin:         AS23661
mnt-by:         MAINT-JP-CLARA
last-modified:  2024-05-22T03:53:24Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 202.51.0.0/16

Range ASN Company Num of IPs
202.51.32.0/20 AS10003 Ogaki Cable Television Co.,Inc. 4,096
202.51.48.0/21 AS9993 ITOCHU Techno-Solutions Corporation 2,048
202.51.240.0/21 AS7610 NUS Gigapop 2,048
202.51.0.0/22 AS24504 Himnet Services 1,024
202.51.88.0/23 AS4007 Subisu Cablenet 512
202.51.70.0/23 AS18222 Communications and communicate Nepal (P)Ltd. 512
202.51.82.0/23 AS18222 Data Hub Pvt. Ltd. 512
202.51.74.0/23 AS23647 Data Hub Pvt. Ltd. 512
202.51.111.0/24 AS17995 PT. iForte Global Internet 256
202.51.115.0/24 AS17995 PT. iForte Global Internet 256
202.51.116.0/24 AS17995 PT. iForte Global Internet 256
202.51.121.0/24 AS17995 PT. iForte Global Internet 256
202.51.123.0/24 AS17995 PT. iForte Global Internet 256
202.51.125.0/24 AS17995 PT. iForte Global Internet 256
202.51.97.0/24 AS17995 PT. iForte Global Internet 256
202.51.68.0/24 AS18222 Data Hub Pvt. Ltd. 256
202.51.213.0/24 AS55685 PT Jala Lintas Media 256
202.51.76.0/24 AS18222 Data Hub Pvt. Ltd. 256
202.51.214.0/24 AS10220 PT Kreasi Sejahtera Teknologi 256
202.51.86.0/24 AS18222 Data Hub Pvt. Ltd. 256
202.51.78.0/24 AS203020 steel-axis LLC 256
202.51.87.0/24 AS203020 steel-axis LLC 256
202.51.198.0/24 AS10220 PT Kreasi Sejahtera Teknologi 256
202.51.95.0/24 AS23647 Corporate Customer Block31 256
202.51.105.0/24 AS17995 PT. iForte Global Internet 256
202.51.100.0/24 AS17995 PT. iForte Global Internet 256
202.51.176.0/24 AS38203 ADN Telecom Ltd. 256
202.51.177.0/24 AS38203 ADN Telecom Ltd. 256
202.51.178.0/24 AS38203 ADN Telecom Ltd. 256
202.51.179.0/24 AS38203 ADN Telecom Ltd. 256
202.51.180.0/24 AS38203 ADN Telecom Ltd. 256
202.51.181.0/24 AS38203 ADN Telecom Ltd. 256
202.51.182.0/24 AS38203 ADN Telecom Ltd. 256
202.51.183.0/24 AS38203 ADN-CORE 256
202.51.184.0/24 AS38203 ADN Telecom Ltd. 256
202.51.185.0/24 AS38203 ADN Telecom Ltd. 256
202.51.186.0/24 AS38203 ADN Telecom Ltd. 256
202.51.187.0/24 AS38203 ADN Telecom Ltd. 256
202.51.188.0/24 AS38203 ADN Telecom Ltd. 256
202.51.189.0/24 AS38203 ADN Telecom Ltd. 256
202.51.190.0/24 AS38203 ADN Telecom Ltd. 256
202.51.191.0/24 AS38203 ADN Telecom Ltd. 256
202.51.69.0/24 AS4007 Communications and communicate Nepal (P)Ltd. 256
202.51.218.0/24 AS141907 Metrosolusi 256
202.51.77.0/24 AS45845 Communications and communicate Nepal (P)Ltd. 256
202.51.79.0/24 AS45845 Communications and communicate Nepal (P)Ltd. 256
202.51.94.0/24 AS45845 Communications and communicate Nepal (P)Ltd. 256
202.51.107.0/24 AS17995 PT. iForte Global Internet 256
202.51.108.0/24 AS17995 PT. iForte Global Internet 256

Hosted domains

There are 3,982 domain names hosted across 243 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
202.51.14.88 ashizawa-do.net 209
202.51.11.95 yoshimi-clinic.com 182
202.51.14.235 takayamaseikei.com 178
202.51.11.196 shinjuku-ekimae.com 178
202.51.11.197 tsuchiura-ganka.com 177
202.51.11.171 kachidoki-clinic.jp 177
202.51.11.170 miki-iin.net 176
202.51.11.198 saitoent.com 176
202.51.11.96 yumegaoka-clinic.jp 174
202.51.11.179 iroha.clinic 173
202.51.11.194 fujiwara-clinic.jp 171
202.51.11.195 shimamoto-clinic.com 170
202.51.11.193 taira-seikei.clinic 169
202.51.11.121 jishudo-mental.com 167
202.51.14.111 kitakurihama-skin.clinic 166
202.51.11.184 hisai-cl.com 166
202.51.14.236 mizue-egao.com 165
202.51.11.100 ocoiro-terrace.com 157
202.51.11.55 ogiso.clinic 155
202.51.14.53 satake-eye.com 34

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

Pingable IPs

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

IP Address ASN Details
202.51.11.3 AS23661 CLARA, Inc. 0.25ms from Tokyo, JP
202.51.8.194 AS23661 CLARA, Inc. 0.24ms from Tokyo, JP
202.51.14.84 AS23661 CLARA, Inc. 0.24ms from Tokyo, JP
202.51.9.10 AS23661 CLARA, Inc. 0.23ms 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
196.189.239.213 AS24757 Ethio Telecom 0.56ms from Addis Ababa, ET
91.52.185.149 AS3320 Deutsche Telekom AG 2.28ms from Duesseldorf, DE
42.186.192.117 AS45062 Netease-Network 4.89ms from Hangzhou, CN
14.163.72.213 AS45899 VNPT Corp 3.28ms from Hanoi, VN
88.89.251.69 AS2119 Telenor Norge AS 5.86ms from Oslo, NO
79.53.228.197 AS3269 Telecom Italia S.p.A. 2.64ms from Rome, IT
69.170.168.5 AS32035 Sangoma US Inc. 14.20ms from Santa Clara, US
187.214.70.21 AS8151 UNINET 4.39ms from Santiago de Queretaro, MX
31.11.107.53 AS16333 Company for communications services A1 Makedonija DOOEL Skopje 6.92ms from Sofia, BG
200.185.96.101 AS16685 TIVIT TERCEIRIZAÇÃO DE PROCESSOS, SERV. E TEC. S/A 7.50ms from São Paulo, BR
45.8.246.53 AS209048 Vcareconnect B.V. 2.41ms from Amsterdam, NL
85.234.247.21 AS49604 Zone Media OU 0.32ms from Amsterdam, NL
112.141.90.229 AS9443 Vocus Retail 2.77ms from Brisbane, AU
49.244.225.69 AS23752 Nepal Telecommunications Corporation, Internet Services, 2.17ms from Kathmandu, NP
159.148.255.85 AS401838 Uni Broadband LLC 1.20ms from London, GB
35.143.108.181 AS33363 Charter Communications, Inc 12.22ms from Orlando, US
112.233.249.213 AS4837 CHINA UNICOM China169 Backbone 9.29ms from Qingdao, CN
162.240.17.53 AS46606 Unified Layer 2.03ms from Salt Lake City, US
73.81.143.245 AS7922 Comcast Cable Communications, LLC 7.96ms from Secaucus, US
212.233.243.149 AS29582 Optisprint OOD 3.15ms from Sofia, BG
213.232.237.5 AS57705 MAXNET-2016 EOOD 3.17ms from Sofia, BG
95.50.155.37 AS5617 Orange Polska Spolka Akcyjna 1.74ms from Warsaw, PL
117.158.90.37 AS24445 Henan Mobile Communications Co.,Ltd 5.20ms from Zhengzhou, CN
115.61.212.229 AS4837 CHINA UNICOM China169 Backbone 6.02ms from Zhengzhou, CN
178.38.184.117 AS6730 Sunrise GmbH 2.52ms from Zuerich, CH

Traceroute

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

$
traceroute -a -n -q1 -m5 202.51.10.59
traceroute to 202.51.10.59 (202.51.10.59): 5 hops max, 52 byte packets
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in The Dalles, US
On

What are IP address ranges?

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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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