61.205.80.0/20

AS17511 · OPTAGE Inc.

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

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

WHOIS Details

inetnum:        61.205.80.0 - 61.205.95.255
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:  2019-09-19T04:06:38Z
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
61.205.0.0/20	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 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

1,862 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
61.205.93.123	AS17511 OPTAGE Inc.	`28.75ms` from Osaka, JP
61.205.92.252	AS17511 OPTAGE Inc.	`28.23ms` from Osaka, JP
61.205.85.5	AS17511 OPTAGE Inc.	`22.57ms` from Osaka, JP
61.205.81.239	AS17511 OPTAGE Inc.	`19.68ms` from Osaka, JP
61.205.91.224	AS17511 OPTAGE Inc.	`28.08ms` from Osaka, JP
61.205.95.166	AS17511 OPTAGE Inc.	`31.27ms` from Osaka, JP
61.205.94.107	AS17511 OPTAGE Inc.	`31.13ms` from Osaka, JP
61.205.84.229	AS17511 OPTAGE Inc.	`18.54ms` from Osaka, JP
61.205.86.194	AS17511 OPTAGE Inc.	`22.83ms` from Osaka, JP
61.205.88.163	AS17511 OPTAGE Inc.	`34.76ms` from Osaka, JP
61.205.82.209	AS17511 OPTAGE Inc.	`19.72ms` from Osaka, JP
61.205.87.176	AS17511 OPTAGE Inc.	`21.10ms` from Osaka, JP
61.205.80.90	AS17511 OPTAGE Inc.	`19.92ms` from Osaka, JP
61.205.90.1	AS17511 OPTAGE Inc.	`30.34ms` from Osaka, JP
61.205.83.40	AS17511 OPTAGE Inc.	`18.57ms` from Osaka, JP
61.205.89.178	AS17511 OPTAGE Inc.	`32.21ms` 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
132.193.17.244	AS668 United States Department of Defense (DoD)	`0.52ms` from Atlanta, US
162.150.63.36	AS7922 Comcast Cable Communications, LLC	`1.10ms` from Chicago, US
161.65.249.196	AS9790 Two Degrees Networks Limited	`6.69ms` from Christchurch, NZ
208.29.94.20	AS174 Cogent Communications, LLC	`4.25ms` from Dallas, US
192.41.12.36	AS13767 DataBank Holdings, Ltd.	`0.39ms` from Draper, US
87.147.15.132	AS3320 Deutsche Telekom AG	`4.01ms` from Duesseldorf, DE
109.152.107.148	AS2856 British Telecommunications PLC	`2.83ms` from London, GB
81.100.146.84	AS5089 Virgin Media Limited	`3.54ms` from London, GB
175.100.192.4	AS9304 HGC Global Communications Limited	`0.67ms` from London, GB
3.96.204.228	AS16509 Amazon.com, Inc.	`0.14ms` from Montreal, CA
126.29.139.212	AS17676 SoftBank Corp.	`7.78ms` from Osaka, JP
85.166.168.212	AS2119 Telenor Norge AS	`2.38ms` from Oslo, NO
128.253.5.20	AS26 Cornell University	`7.60ms` from Piscataway, US
5.16.42.148	AS51570 JSC ER-Telecom Holding	`1.38ms` from Saint Petersburg, RU
5.164.84.68	AS51570 JSC ER-Telecom Holding	`2.14ms` from Saint Petersburg, RU
27.5.129.20	AS17488 Hathway IP Over Cable Internet	`1.74ms` from Saint Thomas Mount, IN
27.126.246.212	AS45474 NEXUSGUARD LIMITED	`0.18ms` from Sao Paulo, BR
121.183.75.132	AS4766 Korea Telecom	`5.82ms` from Seoul, KR
221.142.135.148	AS9318 SK Broadband Co Ltd	`6.37ms` from Seoul, KR
210.117.48.196	AS9318 SK Broadband Co Ltd	`1.71ms` from Seoul, KR
211.3.24.228	AS4725 SoftBank Corp.	`11.36ms` from Tokyo, JP
54.92.181.244	AS14618 Amazon.com, Inc.	`0.53ms` from Ashburn, US
46.246.163.36	AS1241 Forthnet	`2.00ms` from Athens, GR
85.75.105.116	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`1.22ms` from Athens, GR
64.76.89.212	AS3549 Level 3 Parent, LLC	`0.93ms` from Bogota, CO

Traceroute

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

traceroute -a -n -q1 61.205.85.9

traceroute to 61.205.85.9 (61.205.85.9): 64 hops max, 52 byte packets

1 [AS15169] 142.251.60.112 31.195 ms

2 *

3 [AS17511] 61.205.118.21 40.283 ms

4 [AS17511] 203.140.81.210 40.57 ms

5 *

6 *

7 *

8 *

9 [AS17511] 61.205.85.9 70.879 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On December 28th 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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales