61.213.128.0/20

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:        61.213.128.0 - 61.213.135.255
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:  2019-09-19T04:07:15Z
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

Hosted domains

There are 6 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
61.213.137.60	just-dev.co.jp	5
61.213.136.106	namabeer.ne.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

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Pingable IPs

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

IP Address	ASN	Details
61.213.138.232	AS17511 OPTAGE Inc.	`5.14ms` from Osaka, JP
61.213.137.57	AS17511 OPTAGE Inc.	`2.42ms` from Osaka, JP
61.213.134.246	AS17511 OPTAGE Inc.	`0.56ms` from Tokyo, JP
61.213.128.249	AS17511 OPTAGE Inc.	`1.32ms` from Osaka, JP
61.213.143.99	AS17511 OPTAGE Inc.	`2.76ms` from Osaka, JP
61.213.142.162	AS17511 OPTAGE Inc.	`5.15ms` from Osaka, JP
61.213.136.104	AS17511 OPTAGE Inc.	`2.08ms` from Tokyo, JP
61.213.130.220	AS17511 OPTAGE Inc.	`2.76ms` 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
86.98.113.100	AS5384 Emirates Internet	`1.32ms` from Al Fujairah City, AE
71.200.127.84	AS7922 Comcast Cable Communications, LLC	`7.09ms` from Ashburn, US
112.45.136.4	AS9808 China Mobile Communications Group Co., Ltd.	`10.62ms` from Chengdu, CN
24.163.142.228	AS10796 Charter Communications Inc	`5.33ms` from Chicago, US
98.156.5.68	AS11427 Charter Communications Inc	`16.12ms` from Dallas, US
68.149.103.212	AS6327 Shaw Communications Inc.	`4.42ms` from Edmonton, CA
68.49.117.228	AS7922 Comcast Cable Communications, LLC	`8.56ms` from Flint, US
20.143.24.20	AS8075 Microsoft Corporation	`0.23ms` from Milan, IT
5.32.151.244	AS43714 Production co-operative Economic-legal laboratory	`2.62ms` from Moscow, RU
67.242.152.36	AS11351 Charter Communications Inc	`12.19ms` from New York City, US
173.68.106.180	AS701 Verizon Business	`2.46ms` from New York City, US
95.191.36.20	AS12389 PJSC Rostelecom	`5.36ms` from Novosibirsk, RU
123.230.5.4	AS7522 STNet, Incorporated	`5.10ms` from Osaka, JP
189.8.211.4	AS52950 Fund. de Apoio a Pesq. C&T do Est. de SC - FAPESC	`11.47ms` from Osasco, BR
190.34.11.52	AS11556 Cable & Wireless Panama	`1.86ms` from Panama, PA
69.113.111.244	AS6128 Cablevision Systems Corp.	`10.07ms` from Piscataway, US
61.99.93.84	AS9318 SK Broadband Co Ltd	`6.83ms` from Seoul, KR
101.35.37.84	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.38ms` from Shanghai, CN
149.148.225.20	AS2494 MUWNET Autonomous System	`0.49ms` from Vienna, AT
77.58.255.132	AS6730 Sunrise GmbH	`8.61ms` from Zuerich, CH
105.244.14.84	AS36994 Vodacom	`2.54ms` from Cape Town, ZA
34.31.176.116	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
149.233.27.148	AS203329 NTT Global Data Centers EMEA GmbH	`0.35ms` from Frankfurt am Main, DE
87.158.76.196	AS3320 Deutsche Telekom AG	`9.81ms` from Frankfurt am Main, DE
213.208.209.132	AS8220 COLT Technology Services Group Limited	`0.52ms` 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 -f3 -m9 61.213.129.239

traceroute to 61.213.129.239 (61.213.129.239): 9 hops max, 52 byte packets

3 [] 206.72.211.43 0.295 ms

4 [AS17511] 180.145.253.121 103.633 ms

5 [AS17511] 203.140.81.214 103.682 ms

6 [AS17511] 60.56.20.134 104.086 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On September 11th 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.

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