61.205.0.0/20

AS17511 · OPTAGE Inc.

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Summary

Country	Japan
Domain	optage.co.jp
ASN	AS17511
Registry	JPNIC
ID	K-OPTICOM-CIDR-BLK-JP

WHOIS Details

inetnum:        61.205.0.0 - 61.205.15.255
netname:        K-Opticom-CIDR-BLK-JP
descr:          OPTAGE Inc.
remarks:        Email address for spam or abuse complaints : abuse@optage.co.jp
country:        JP
admin-c:        JP00014196
tech-c:         JP00014196
last-modified:  2019-09-19T04:06:29Z
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)
source:         JPNIC

Nearby Ranges

BGP prefixes that overlap with 61.205.0.0/16

Range	ASN	Company	Num of IPs
61.205.192.0/18	AS9595	NTT-ME Corporation	16,384
61.205.128.0/18	AS9617	JCOM Co., Ltd.	16,384
61.205.80.0/20	AS17511	OPTAGE Inc.	4,096
61.205.96.0/20	AS17511	OPTAGE Inc.	4,096
61.205.32.0/21	AS18144	Enecom,Inc.	2,048
61.205.60.0/22	AS10013	FreeBit Co., Ltd.	1,024
61.205.56.0/24	AS10013	trunc inc.	256
61.205.58.0/24	AS10013	FreeBit Co., Ltd.	256
61.205.57.0/24	AS10013	FreeBit Co., Ltd.	256
61.205.59.0/24	AS10013	trunk inc.	256

Hosted domains

There are 11 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
61.205.12.138	el-sup.com	9
61.205.12.163	gigazine.asia	1
61.205.12.156	kyouseipro.com	1

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

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Pingable IPs

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

IP Address	ASN	Details
61.205.5.219	AS17511 OPTAGE Inc.	`16.20ms` from Osaka, JP
61.205.15.93	AS17511 OPTAGE Inc.	`0.92ms` from Osaka, JP
61.205.2.182	AS17511 OPTAGE Inc.	`20.04ms` from Osaka, JP
61.205.12.48	AS17511 OPTAGE Inc.	`1.41ms` from Osaka, JP
61.205.1.201	AS17511 OPTAGE Inc.	`23.34ms` from Osaka, JP
61.205.14.89	AS17511 OPTAGE Inc.	`1.09ms` from Osaka, JP
61.205.4.52	AS17511 OPTAGE Inc.	`28.62ms` from Osaka, JP
61.205.6.172	AS17511 OPTAGE Inc.	`17.02ms` from Osaka, JP
61.205.7.183	AS17511 OPTAGE Inc.	`15.30ms` from Osaka, JP
61.205.0.141	AS17511 OPTAGE Inc.	`21.14ms` from Osaka, JP
61.205.3.57	AS17511 OPTAGE Inc.	`20.34ms` from Osaka, 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
196.210.31.244	AS20011 Dimension Data	`1.95ms` from Cape Town, ZA
65.116.210.100	AS209 CenturyLink Communications, LLC	`1.68ms` from Chicago, US
69.65.28.164	AS32181 GigeNET	`0.09ms` from Chicago, US
218.27.127.4	AS4837 CHINA UNICOM China169 Backbone	`18.47ms` from Dalian, CN
181.217.69.4	AS28573 Claro NXT Telecomunicacoes Ltda	`12.38ms` from Fortaleza, BR
121.204.166.100	AS133774 Fuzhou	`1.66ms` from Fuzhou, CN
14.171.107.4	AS45899 VNPT Corp	`2.15ms` from Hanoi, VN
98.57.204.132	AS7922 Comcast Cable Communications, LLC	`7.38ms` from Houston, US
90.1.0.100	AS3215 Orange S.A.	`9.69ms` from Marseille, FR
23.47.230.36	AS16625 Akamai Technologies, Inc.	`0.23ms` from Mumbai, IN
116.50.82.228	AS38529 Reliance Industries Limited WAN Backbone Interface with ISPs in India	`1.24ms` from Mumbai, IN
171.111.221.68	AS138169 China Telecom	`1.00ms` from Nanning, CN
98.116.139.148	AS701 Verizon Business	`2.87ms` from New York City, US
100.30.224.52	AS14618 Amazon.com, Inc.	`0.59ms` from Reston, US
189.46.221.20	AS27699 TELEFÔNICA BRASIL S.A	`2.52ms` from Sao Paulo, BR
136.187.33.20	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`1.45ms` from Tokyo, JP
79.142.191.4	AS47692 Nessus GmbH	`0.56ms` from Vienna, AT
141.161.220.4	AS11318 Georgetown University	`2.29ms` from Ashburn, US
172.212.40.52	AS8075 Microsoft Corporation	`0.38ms` from Ashburn, US
170.146.234.196	AS14299 Automatic Data Processing, Inc.	`12.58ms` from Atlanta, US
146.88.56.36	AS132280 Symphony Communication (Thailand) PCL.	`0.66ms` from Bangkok, TH
190.248.238.180	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`7.88ms` from Bogota, CO
216.194.126.180	AS13767 DataBank Holdings, Ltd.	`0.88ms` from Draper, US
164.92.243.132	AS14061 DigitalOcean, LLC	`0.19ms` from Frankfurt am Main, DE
37.82.250.132	AS3320 Deutsche Telekom AG	`19.29ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 61.205.3.41

traceroute to 61.205.3.41 (61.205.3.41): 64 hops max, 52 byte packets

1 [AS15169] 74.125.251.87 47.753 ms

2 *

3 [AS17511] 60.56.5.141 54.033 ms

4 [AS17511] 203.140.81.218 52.873 ms

5 [AS17511] 61.205.127.234 51.699 ms

6 *

7 [AS17511] 61.205.3.41 140.045 ms

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On December 6th 2025

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