203.179.240.0/20

AS18266 · Datacore Works Co.,Ltd.

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Summary

Country	Japan
Domain	cna.ne.jp
ASN	AS18266
Registry	JPNIC
ID	CNA-CIDR-BLK-JP

WHOIS Details

inetnum:        203.179.240.0 - 203.179.255.255
netname:        CNA-CIDR-BLK-JP
descr:          Cable Networks Akita Co.,Ltd.
remarks:        Email address for spam or abuse complaints : abuse@cna.ne.jp
country:        JP
admin-c:        JP00129211
tech-c:         JP00129211
last-modified:  2021-07-30T03:35:02Z
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

Overlapping Ranges

BGP prefixes that are contained by 203.179.240.0/20

Range	ASN	Company	Num of IPs
203.179.252.0/22	AS23783	Cable Networks Akita Co.,Ltd.	1,024

Nearby Ranges

BGP prefixes that overlap with 203.179.0.0/16

Range	ASN	Company	Num of IPs
203.179.192.0/19	AS7679	QTnet,Inc.	8,192
203.179.0.0/20	AS9622	Kurashiki Cable TV Corporation	4,096
203.179.16.0/20	AS23776	NEC Corporation	4,096
203.179.64.0/20	AS2522	Japan Network Information Center	4,096
203.179.80.0/20	AS9600	Sony Biz Networks Corporation	4,096
203.179.224.0/20	AS17947	SAKURA KCS Corporation	4,096
203.179.136.0/21	AS23624	Chukai Television Co,.Ltd.	2,048
203.179.132.0/22	AS23624	Chukai Television Co,.Ltd.	1,024
203.179.128.0/22	AS23624	Chukai Television Co,.Ltd.	1,024
203.179.252.0/22	AS23783	Cable Networks Akita Co.,Ltd.	1,024

Hosted domains

There are 10 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.179.246.85	octrise.net	3
203.179.246.100	sakigake.jp	2
203.179.242.34	agri-akita.com	2
203.179.251.153	ugo.co.jp	2
203.179.251.170	kamisugi.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

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

IP Address	ASN	Details
203.179.253.199	AS23783 Cable Networks Akita Co.,ltd.	`9.11ms` from Tokyo, JP
203.179.255.4	AS23783 Cable Networks Akita Co.,ltd.	`11.15ms` from Tokyo, JP
203.179.251.219	AS18266 Datacore Works Co.,Ltd.	`12.40ms` from Tokyo, JP
203.179.242.66	AS18266 Datacore Works Co.,Ltd.	`8.44ms` from Tokyo, JP
203.179.240.145	AS18266 Datacore Works Co.,Ltd.	`13.75ms` from Tokyo, JP
203.179.241.2	AS18266 Datacore Works Co.,Ltd.	`9.26ms` from Tokyo, JP
203.179.244.1	AS23783 Cable Networks Akita Co.,ltd.	`8.61ms` from Tokyo, JP
203.179.254.1	AS23783 Cable Networks Akita Co.,ltd.	`8.59ms` from Tokyo, JP
203.179.248.1	AS23783 Cable Networks Akita Co.,ltd.	`8.64ms` from Tokyo, JP
203.179.249.82	AS23783 Cable Networks Akita Co.,ltd.	`8.38ms` from Tokyo, JP
203.179.246.163	AS18266 Datacore Works Co.,Ltd.	`8.47ms` from Tokyo, JP
203.179.252.1	AS23783 Cable Networks Akita Co.,ltd.	`8.67ms` 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
24.112.250.36	AS27364 Armstrong	`9.57ms` from Ashburn, US
97.84.243.68	AS20115 Charter Communications LLC	`17.67ms` from Chicago, US
130.185.136.196	AS31027 GlobalConnect A/S	`0.61ms` from Copenhagen, DK
86.152.254.180	AS2856 British Telecommunications PLC	`5.83ms` from London, GB
104.221.208.84	AS22552 eSited Solutions	`0.33ms` from Los Angeles, US
60.141.14.132	AS17676 SoftBank Corp.	`4.02ms` from Osaka, JP
191.186.114.116	AS28573 Claro NXT Telecomunicacoes Ltda	`0.61ms` from Sao Paulo, BR
219.74.28.116	AS9506 Singtel Fibre Broadband	`1.30ms` from Singapore, SG
184.72.159.212	AS14618 Amazon.com, Inc.	`0.73ms` from Ashburn, US
196.221.193.52	AS24835 Vodafone Data	`8.90ms` from Cairo, EG
75.210.208.244	AS6167 Verizon Business	`10.47ms` from Chicago, US
108.202.193.244	AS7018 AT&T Enterprises, LLC	`13.34ms` from Chicago, US
185.161.82.4	AS207180 HCL Technologies Germany GmbH	`11.71ms` from Frankfurt am Main, DE
43.204.225.20	AS16509 Amazon.com, Inc.	`0.15ms` from Mumbai, IN
47.23.42.20	AS6128 Cablevision Systems Corp.	`3.77ms` from New York City, US
126.220.234.212	AS17676 SoftBank Corp.	`3.79ms` from Osaka, JP
112.243.14.228	AS4837 CHINA UNICOM China169 Backbone	`4.78ms` from Qingdao, CN
46.194.83.84	AS8434 Telenor Sverige AB	`11.05ms` from Stockholm, SE
150.249.103.20	AS2527 Sony Network Communications Inc.	`1.47ms` from Tokyo, JP
54.172.255.116	AS14618 Amazon.com, Inc.	`0.57ms` from Ashburn, US
135.222.250.100	AS8075 Microsoft Corporation	`0.42ms` from Ashburn, US
2.85.126.4	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`7.86ms` from Athens, GR
66.168.81.212	AS20115 Charter Communications LLC	`15.82ms` from Atlanta, US
66.0.3.228	AS7029 Windstream Communications LLC	`5.82ms` from Atlanta, US
42.62.3.180	AS23724 IDC, China Telecommunications Corporation	`2.89ms` from Beijing, CN

Traceroute

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

traceroute -a -n -q1 -f2 -m9 203.179.245.107

traceroute to 203.179.245.107 (203.179.245.107): 9 hops max, 52 byte packets

2 [AS55805] 27.123.215.249 223.984 ms

3 *

4 *

5 [] 210.171.225.68 226.358 ms

6 [AS23783] 61.11.128.218 227.648 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Ulan Bator, MN

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.

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