61.205.112.0/20

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:        61.205.112.0 - 61.205.119.255
netname:        K-Opticom-CIDR-BLK-JP
descr:          OPTAGE Inc.
remarks:        Email address for spam or abuse complaints : [email protected]
country:        JP
admin-c:        JP00014196
tech-c:         JP00014196
last-modified:  2019-09-19T04:06:59Z
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
61.205.80.0/20	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 7 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
61.205.120.83	miraitechno.co.jp	4
61.205.112.210	pillar.co.jp	1
61.205.121.123	mcdonalds-online.com	1
61.205.121.85	ks-sol-support.jp	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

Read more

Pingable IPs

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

IP Address	ASN	Details
61.205.115.113	AS17511 OPTAGE Inc.	`0.46ms` from Osaka, JP
61.205.125.91	AS17511 OPTAGE Inc.	`2.09ms` from Osaka, JP
61.205.112.209	AS17511 OPTAGE Inc.	`1.22ms` from Osaka, JP
61.205.113.141	AS17511 OPTAGE Inc.	`0.79ms` from Osaka, JP
61.205.116.9	AS17511 OPTAGE Inc.	`0.95ms` from Osaka, JP
61.205.124.243	AS17511 OPTAGE Inc.	`1.65ms` from Osaka, JP
61.205.123.229	AS17511 OPTAGE Inc.	`0.75ms` from Osaka, JP
61.205.121.49	AS17511 OPTAGE Inc.	`1.14ms` from Osaka, JP
61.205.118.18	AS17511 OPTAGE Inc.	`0.66ms` from Tokyo, JP
61.205.120.233	AS17511 OPTAGE Inc.	`0.82ms` from Osaka, JP
61.205.127.118	AS17511 OPTAGE Inc.	`0.44ms` from Osaka, JP
61.205.122.33	AS17511 OPTAGE Inc.	`1.19ms` from Osaka, JP
61.205.119.170	AS17511 OPTAGE Inc.	`0.55ms` 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
178.88.203.164	AS9198 JSC Kazakhtelecom	`2.14ms` from Almaty, KZ
23.222.34.84	AS16625 Akamai Technologies, Inc.	`0.46ms` from Amsterdam, NL
111.207.182.228	AS4808 China Unicom Beijing Province Network	`3.28ms` from Beijing, CN
81.183.102.52	AS5483 Magyar Telekom Plc.	`5.70ms` from Budapest, HU
116.169.199.164	AS4837 CHINA UNICOM China169 Backbone	`8.00ms` from Chengdu, CN
94.145.166.228	AS9158 Telenor A/S	`7.95ms` from Copenhagen, DK
172.84.107.180	AS19740 Sudjam, LLC	`0.18ms` from Dallas, US
160.0.192.36	AS328471 HERO TELECOMS (PTY) LTD	`3.02ms` from Johannesburg, ZA
162.253.16.52	AS45352 IP ServerOne Solutions Sdn Bhd	`0.81ms` from Kuala Lumpur, MY
113.230.215.20	AS4837 CHINA UNICOM China169 Backbone	`9.33ms` from Liaoyang, CN
86.111.190.36	AS33182 HostDime.com, Inc.	`0.30ms` from Los Angeles, US
172.70.254.52	AS13335 Cloudflare, Inc.	`0.48ms` from Miami, US
88.45.37.148	AS3269 Telecom Italia S.p.A.	`0.85ms` from Milan, IT
218.144.52.164	AS4766 Korea Telecom	`1.37ms` from Seoul, KR
220.122.42.84	AS4766 Korea Telecom	`5.36ms` from Seoul, KR
103.141.234.20	AS139364 Pemerintah Kabupaten Gunungkidul	`1.03ms` from Yogyakarta, ID
62.250.9.52	AS50266 Odido Netherlands B.V.	`3.54ms` from Amsterdam, NL
181.105.142.20	AS7303 Telecom Argentina S.A.	`8.63ms` from Buenos Aires, AR
196.114.188.180	AS36925 MEDITELECOM	`12.10ms` from Casablanca, MA
118.118.35.52	AS4134 CHINANET-BACKBONE	`10.03ms` from Chengdu, CN
63.147.99.4	AS11255 Screamin' Banshee Technologies	`19.58ms` from Chicago, US
78.42.71.212	AS3209 Vodafone GmbH	`9.96ms` from Frankfurt am Main, DE
217.41.42.148	AS2856 British Telecommunications PLC	`2.90ms` from London, GB
109.154.135.100	AS2856 British Telecommunications PLC	`3.92ms` from London, GB
71.18.124.20	AS396986 Bytedance Inc.	`0.16ms` from New York City, US

Traceroute

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

traceroute -a -n -q1 61.205.115.194

traceroute to 61.205.115.194 (61.205.115.194): 64 hops max, 52 byte packets

1 [AS31898] 140.91.218.29 0.077 ms

2 [] 218.100.9.120 0.681 ms

3 [] 218.100.9.67 0.737 ms

4 [AS17511] 60.56.20.217 1.487 ms

5 [AS17511] 203.140.81.210 1.55 ms

6 [AS17511] 58.191.151.246 1.005 ms

7 [AS17511] 61.205.115.194 1.431 ms

Measurement taken from

IPinfo ProbeNet in Osaka, JP

On December 6th 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