203.180.0.0/16

AS2497 · Internet Initiative Japan Inc.

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Summary

Country	Japan
Domain	iij.ad.jp
ASN	AS2497
Registry	JPNIC
ID	IIJ-CIDR-BLK-JP

WHOIS Details

inetnum:        203.180.0.0 - 203.180.255.255
netname:        IIJ-CIDR-BLK-JP
descr:          Internet Initiative Japan Inc.
remarks:        Email address for spam or abuse complaints : abuse-contact@iij.ad.jp
country:        JP
admin-c:        JP00010080
tech-c:         JP00010080
last-modified:  2014-08-01T02:15:37Z
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 203.0.0.0/8

Range	ASN	Company	Num of IPs
203.40.0.0/13	AS1221	Telstra Limited	524,288
203.48.0.0/14	AS1221	Telstra Limited	262,144
203.36.0.0/14	AS1221	Telstra Limited	262,144
203.52.0.0/15	AS1221	Telstra Limited	131,072
203.102.0.0/15	AS703	Verizon Australia PTY Limited	131,072
203.108.0.0/16	AS12234	OzEmail Pty Ltd	65,536
203.151.0.0/16	AS4618	Internet Thailand Company Limited	65,536
203.225.0.0/16	AS4766	KOLON BENIT	65,536
203.177.0.0/16	AS132595	Globe Telecom	65,536
203.59.0.0/16	AS4739	iiNet Limited	65,536
203.154.0.0/16	AS4618	Internet Thailand Company Limited	65,536
203.224.0.0/16	AS9273	ITCENENTEC CO.,LTD.	65,536
203.155.0.0/16	AS55844	KSC Commercial Internet Co. Ltd.	65,536
203.177.0.0/16	AS24451	Globe Telecom	65,536
203.155.0.0/16	AS23644	KSC Commercial Internet Co. Ltd.	65,536
203.206.0.0/16	AS4739	iiNet Limited	65,536
203.108.0.0/16	AS703	OzEmail Pty Ltd	65,536
203.162.0.0/16	AS45899	Vietnam Posts and Telecommunications Group	65,536
203.157.0.0/16	AS9649	Ministry of Public Health, Thailand	65,536
203.151.0.0/16	AS56223	Internet Thailand Company Limited	65,536
203.61.0.0/16	AS703	Verizon Australia PTY Limited	65,536
203.59.0.0/16	AS7545	iiNet Limited	65,536
203.63.0.0/16	AS2764	AAPT Limited	65,536
203.231.0.0/16	AS9848	SEJONG NETWORKS	65,536
203.155.0.0/16	AS135620	KSC Commercial Internet Co. Ltd.	65,536
203.138.0.0/16	AS2514	NTT PC Communications,Inc.	65,536
203.231.0.0/16	AS9684	SEJONG NETWORKS	65,536
203.231.0.0/16	AS23593	SEJONG NETWORKS	65,536
203.155.0.0/16	AS17478	KSC Commercial Internet Co. Ltd.	65,536
203.74.0.0/16	AS131660	Data Communication Business Group,	65,536
203.177.0.0/16	AS132199	Globe Telecom	65,536
203.231.0.0/16	AS131866	SEJONG NETWORKS	65,536
203.200.0.0/16	AS40009	Internet Service Provider	65,536
203.155.0.0/16	AS45197	KSC Commercial Internet Co. Ltd.	65,536
203.227.0.0/16	AS9848	SEJONG NETWORKS	65,536
203.125.0.0/16	AS3758	SingNet Pte Ltd	65,536
203.218.0.0/16	AS4760	PCCW Limited	65,536
203.219.0.0/16	AS7545	TPG Internet Pty Ltd.	65,536
203.227.0.0/16	AS23584	SEJONG NETWORKS	65,536
203.155.0.0/16	AS7693	KSC Commercial Internet Co. Ltd.	65,536
203.74.0.0/16	AS3462	Data Communication Business Group,	65,536
203.231.0.0/16	AS9973	SEJONG NETWORKS	65,536
203.64.0.0/16	AS1659	Taiwan Academic Network	65,536
203.227.0.0/16	AS9973	SEJONG NETWORKS	65,536
203.206.0.0/16	AS7545	iiNet Limited	65,536
203.35.0.0/16	AS1221	Telstra Limited	65,536
203.67.0.0/16	AS4780	Digital United Inc.	65,536
203.73.0.0/16	AS4780	Digital United Inc.	65,536
203.197.0.0/16	AS4755	Internet Service Provider	65,536

Hosted domains

There are 1,081 domain names hosted across 357 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.180.250.58	ij-u.osaka.jp	48
203.180.251.92	deparcha.com	37
203.180.251.174	okinawa-kanko.info	32
203.180.250.168	e-sui.com	30
203.180.251.209	mission-k.co.jp	25
203.180.251.210	hanna-gas.co.jp	22
203.180.250.43	trpjapan.com	22
203.180.251.208	hirogroup.com	21
203.180.250.88	gigiokinawa.com	21
203.180.250.42	ginowandensetsu.com	19
203.180.251.175	louken-mifujien.jp	19
203.180.251.76	tjmc.or.jp	19
203.180.250.159	churashima.net	19
203.180.251.46	the-status.com	19
203.180.251.243	hvrentacar.com	17
203.180.250.164	sakisho.jp	15
203.180.251.23	maedasangyo.net	15
203.180.171.158	suggestwade.com	14
203.180.171.152	womanaffiliated.com	14
203.180.251.236	yasuiyado.in	14

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

7,821 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
203.180.30.101	AS2497 Internet Initiative Japan Inc.	`0.57ms` from Tokyo, JP
203.180.7.7	AS2497 Internet Initiative Japan Inc.	`3.02ms` from Tokyo, JP
203.180.99.163	AS2497 Internet Initiative Japan Inc.	`1.24ms` from Tokyo, JP
203.180.74.1	AS2497 Internet Initiative Japan Inc.	`14.37ms` from Tokyo, JP
203.180.111.120	AS2497 Internet Initiative Japan Inc.	`1.03ms` from Tokyo, JP
203.180.51.32	AS2497 Internet Initiative Japan Inc.	`3.29ms` from Tokyo, JP
203.180.77.14	AS2497 Internet Initiative Japan Inc.	`14.77ms` from Tokyo, JP
203.180.50.5	AS2497 Internet Initiative Japan Inc.	`1.69ms` from Tokyo, JP
203.180.15.210	AS2497 Internet Initiative Japan Inc.	`3.04ms` from Tokyo, JP
203.180.28.213	AS2497 Internet Initiative Japan Inc.	`26.43ms` from Tokyo, JP
203.180.41.135	AS2497 Internet Initiative Japan Inc.	`3.29ms` from Tokyo, JP
203.180.21.153	AS2497 Internet Initiative Japan Inc.	`3.42ms` from Osaka, JP
203.180.48.89	AS2497 Internet Initiative Japan Inc.	`0.80ms` from Tokyo, JP
203.180.40.3	AS2497 Internet Initiative Japan Inc.	`3.82ms` from Tokyo, JP
203.180.45.175	AS2497 Internet Initiative Japan Inc.	`0.97ms` from Tokyo, JP
203.180.96.123	AS2497 Internet Initiative Japan Inc.	`4.46ms` from Tokyo, JP
203.180.68.206	AS2497 Internet Initiative Japan Inc.	`1.81ms` from Tokyo, JP
203.180.73.6	AS2497 Internet Initiative Japan Inc.	`1.65ms` from Osaka, JP
203.180.4.113	AS2497 Internet Initiative Japan Inc.	`0.27ms` from San Jose, US
203.180.78.45	AS2497 Internet Initiative Japan Inc.	`14.85ms` from Tokyo, JP
203.180.6.37	AS2497 Internet Initiative Japan Inc.	`1.92ms` from Tokyo, JP
203.180.2.129	AS2497 Internet Initiative Japan Inc.	`1.14ms` from Tokyo, JP
203.180.90.40	AS2497 Internet Initiative Japan Inc.	`0.80ms` from Osaka, JP
203.180.97.209	AS2497 Internet Initiative Japan Inc.	`3.02ms` from Osaka, JP
203.180.29.18	AS2497 Internet Initiative Japan Inc.	`1.79ms` 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
9.163.211.16	AS8075 Microsoft Corporation	`0.24ms` from Amsterdam, NL
57.153.207.32	AS8075 Microsoft Corporation	`2.04ms` from Amsterdam, NL
199.218.72.80	AS600 OARnet	`0.35ms` from Columbus, US
18.252.181.48	AS8987 Amazon Data Services Ireland Ltd	`0.83ms` from Columbus, US
85.131.88.240	AS16086 DNA Oyj	`2.58ms` from Helsinki, FI
119.246.81.48	AS9269 Hong Kong Broadband Network Ltd.	`0.59ms` from Hong Kong, HK
31.222.111.240	AS200845 AVATEL TELECOM, SA	`11.46ms` from Madrid, ES
60.254.47.208	AS17488 Hathway IP Over Cable Internet	`6.42ms` from Mumbai, IN
68.231.163.112	AS22773 Cox Communications Inc.	`6.09ms` from Phoenix, US
39.73.178.224	AS4837 CHINA UNICOM China169 Backbone	`4.67ms` from Qingdao, CN
48.221.123.32	AS8075 Microsoft Corporation	`1.00ms` from Quincy, US
3.222.237.32	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
115.9.6.144	AS4766 Korea Telecom	`6.79ms` from Seoul, KR
180.95.64.160	AS45768 CEnet	`0.28ms` from Sydney, AU
37.15.161.96	AS12479 Orange Espagne SA	`6.36ms` from Zaragoza, ES
45.38.102.144	AS62160 WEB3 Leaders INC	`4.87ms` from Bratislava, SK
97.176.222.224	AS6167 Verizon Business	`9.37ms` from Chicago, US
64.236.246.48	AS8075 Microsoft Corporation	`0.51ms` from Chicago, US
98.43.102.16	AS7922 Comcast Cable Communications, LLC	`13.63ms` from Denver, US
74.137.230.48	AS10796 Charter Communications Inc	`7.02ms` from Flint, US
103.68.84.144	AS135918 VIET DIGITAL TECHNOLOGY LIABILITY COMPANY	`0.40ms` from Ho Chi Minh City, VN
154.195.197.128	AS132839 POWER LINE DATACENTER	`1.10ms` from Hong Kong, HK
73.232.157.32	AS7922 Comcast Cable Communications, LLC	`4.10ms` from Houston, US
216.250.112.16	AS8560 IONOS SE	`0.41ms` from Lenexa, US
18.132.198.16	AS16509 Amazon.com, Inc.	`0.14ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f3 203.180.1.100

traceroute to 203.180.1.100 (203.180.1.100): 64 hops max, 52 byte packets

3 [] 210.173.176.190 0.875 ms

4 [AS2497] 58.138.101.97 0.738 ms

5 [AS2497] 210.138.115.210 0.745 ms

6 [AS2497] 160.13.162.2 1.152 ms

7 [AS2497] 210.148.147.242 1.411 ms

8 [AS2497] 203.180.1.100 2.206 ms

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On December 14th 2025

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