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
203.36.0.0/14	AS1221	Telstra Limited	262,144
203.48.0.0/14	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
203.35.0.0/16	AS1221	Telstra Limited	65,536
203.162.0.0/16	AS7643	Vietnam Posts and Telecommunications Group	65,536
203.206.0.0/16	AS7545	iiNet Limited	65,536
203.231.0.0/16	AS9973	SEJONG NETWORKS	65,536
203.59.0.0/16	AS7545	iiNet Limited	65,536
203.231.0.0/16	AS9684	SEJONG NETWORKS	65,536
203.227.0.0/16	AS17592	SEJONG NETWORKS	65,536
203.68.0.0/16	AS1659	Taiwan Academic Network	65,536
203.54.0.0/16	AS1221	Telstra Limited	65,536
203.64.0.0/16	AS1659	Taiwan Academic Network	65,536
203.155.0.0/16	AS55844	KSC Commercial Internet Co. Ltd.	65,536
203.73.0.0/16	AS4780	Digital United Inc.	65,536
203.151.0.0/16	AS56223	Internet Thailand Company Limited	65,536
203.108.0.0/16	AS703	OzEmail Pty Ltd	65,536
203.219.0.0/16	AS7545	TPG Internet Pty Ltd.	65,536
203.227.0.0/16	AS9319	SEJONG NETWORKS	65,536
203.227.0.0/16	AS9973	SEJONG NETWORKS	65,536
203.177.0.0/16	AS4775	Globe Telecom	65,536
203.227.0.0/16	AS9493	SEJONG NETWORKS	65,536
203.231.0.0/16	AS17881	SEJONG NETWORKS	65,536
203.138.0.0/16	AS2514	NTT PC Communications,Inc.	65,536
203.108.0.0/16	AS12234	OzEmail Pty Ltd	65,536
203.61.0.0/16	AS703	Verizon Australia PTY Limited	65,536
203.85.0.0/16	AS4058	CITIC Telecom International CPC Limited	65,536
203.231.0.0/16	AS3608	SEJONG NETWORKS	65,536
203.162.0.0/16	AS45899	Vietnam Posts and Telecommunications Group	65,536
203.67.0.0/16	AS4780	Digital United Inc.	65,536
203.182.0.0/16	AS4673	NTT DATA CORPORATION	65,536
203.155.0.0/16	AS17478	KSC Commercial Internet Co. Ltd.	65,536
203.70.0.0/16	AS4780	Digital United Inc.	65,536
203.225.0.0/16	AS4766	KOLON BENIT	65,536
203.155.0.0/16	AS135620	KSC Commercial Internet Co. Ltd.	65,536
203.227.0.0/16	AS38676	SEJONG NETWORKS	65,536
203.218.0.0/16	AS4760	PCCW Limited	65,536
203.157.0.0/16	AS9649	Ministry of Public Health, Thailand	65,536
203.227.0.0/16	AS138195	SEJONG NETWORKS	65,536
203.66.0.0/16	AS3462	Data Communication Business Group,	65,536
203.125.0.0/16	AS3758	SingNet Pte Ltd	65,536
203.151.0.0/16	AS4618	Internet Thailand Company Limited	65,536
203.200.0.0/16	AS4755	Internet Service Provider	65,536
203.59.0.0/16	AS4802	iiNet Limited	65,536
203.224.0.0/16	AS9273	ITCENENTEC CO.,LTD.	65,536
203.227.0.0/16	AS9848	SEJONG NETWORKS	65,536
203.231.0.0/16	AS18309	SEJONG NETWORKS	65,536

Hosted domains

There are 1,110 domain names hosted across 364 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	49
203.180.251.92	magi-magi.com	37
203.180.251.174	shima-no-gift-exchange.com	33
203.180.250.168	e-sui.com	30
203.180.251.209	kenchiku-bunka.co.jp	25
203.180.251.210	his.or.jp	23
203.180.250.43	karrykanko.com	22
203.180.251.208	hirogroup.com	21
203.180.250.88	mice.okinawa	21
203.180.250.159	neuron.ne.jp	20
203.180.250.42	ent-ryukyu.jp	19
203.180.251.175	nishinihon.co.jp	19
203.180.251.46	premium-books.net	19
203.180.251.76	takunanrecycle.co.jp	19
203.180.171.155	clothebovine.com	18
203.180.251.243	hvrentacar.com	17
203.180.171.153	impressionuprising.com	16
203.180.251.23	yugaf-hd.com	15
203.180.250.164	tsunamigumi.co.jp	15
203.180.250.40	hokubu-koun.com	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

7,865 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
203.180.103.170	AS2497 Internet Initiative Japan Inc.	`27.47ms` from Osaka, JP
203.180.64.134	AS2497 Internet Initiative Japan Inc.	`4.45ms` from Osaka, JP
203.180.97.145	AS2497 Internet Initiative Japan Inc.	`2.97ms` from Osaka, JP
203.180.67.232	AS2497 Internet Initiative Japan Inc.	`4.17ms` from Tokyo, JP
203.180.157.247	AS2497 Internet Initiative Japan Inc.	`1.12ms` from Tokyo, JP
203.180.164.2	AS2497 Internet Initiative Japan Inc.	`1.32ms` from Tokyo, JP
203.180.141.97	AS2497 Internet Initiative Japan Inc.	`0.58ms` from Osaka, JP
203.180.171.184	AS2497 Internet Initiative Japan Inc.	`1.85ms` from Osaka, JP
203.180.69.149	AS2497 Internet Initiative Japan Inc.	`0.35ms` from Osaka, JP
203.180.50.140	AS2497 Internet Initiative Japan Inc.	`1.73ms` from Tokyo, JP
203.180.127.44	AS2497 Internet Initiative Japan Inc.	`1.06ms` from Tokyo, JP
203.180.151.5	AS2497 Internet Initiative Japan Inc.	`0.42ms` from Osaka, JP
203.180.204.20	AS2497 Internet Initiative Japan Inc.	`0.16ms` from San Jose, US
203.180.200.1	AS2497 Internet Initiative Japan Inc.	`6.88ms` from Tokyo, JP
203.180.96.115	AS2497 Internet Initiative Japan Inc.	`4.41ms` from Tokyo, JP
203.180.185.210	AS2497 Internet Initiative Japan Inc.	`0.99ms` from Osaka, JP
203.180.91.124	AS2497 Internet Initiative Japan Inc.	`1.71ms` from Osaka, JP
203.180.181.39	AS2497 Internet Initiative Japan Inc.	`1.90ms` from Tokyo, JP
203.180.80.122	AS2497 Internet Initiative Japan Inc.	`14.71ms` from Tokyo, JP
203.180.251.136	AS2497 Internet Initiative Japan Inc.	`24.77ms` from Osaka, JP
203.180.201.125	AS2497 Internet Initiative Japan Inc.	`4.19ms` from Tokyo, JP
203.180.145.242	AS2497 Internet Initiative Japan Inc.	`1.87ms` from Tokyo, JP
203.180.112.9	AS2497 Internet Initiative Japan Inc.	`2.39ms` from Tokyo, JP
203.180.219.35	AS2497 Internet Initiative Japan Inc.	`1.73ms` from Tokyo, JP
203.180.74.1	AS2497 Internet Initiative Japan Inc.	`14.42ms` 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
24.34.195.16	AS7922 Comcast Cable Communications, LLC	`7.54ms` from Boston, US
172.72.201.144	AS11426 Charter Communications Inc	`5.53ms` from Charlotte, US
27.5.34.128	AS17488 Hathway IP Over Cable Internet	`1.44ms` from Delhi, IN
87.166.213.48	AS3320 Deutsche Telekom AG	`6.98ms` from Duesseldorf, DE
176.175.166.32	AS5410 Bouygues Telecom SA	`4.89ms` from Frankfurt am Main, DE
77.12.36.64	AS6805 Telefonica Germany GmbH & Co.OHG	`3.99ms` from Frankfurt am Main, DE
51.255.84.144	AS16276 OVH SAS	`0.06ms` from Gravelines, FR
16.78.172.48	AS16509 Amazon.com, Inc.	`0.10ms` from Jakarta, ID
77.103.138.176	AS5089 Virgin Media Limited	`5.16ms` from London, GB
4.158.147.160	AS8075 Microsoft Corporation	`0.19ms` from London, GB
20.70.76.48	AS8075 Microsoft Corporation	`0.55ms` from Melbourne, AU
201.167.142.64	AS16960 Television Internacional, S.A. de C.V.	`14.42ms` from Monterrey, MX
66.120.3.0	AS7018 AT&T Enterprises, LLC	`2.65ms` from San Jose, US
110.47.107.0	AS17839 LG HelloVision Corp.	`1.40ms` from Seoul, KR
43.192.31.208	AS135629 Ningxia West Cloud Data Technology Co.Ltd.	`1.44ms` from Zhongwei, CN
85.7.231.96	AS3303 Swisscom (Switzerland) Ltd	`1.75ms` from Zuerich, CH
223.70.135.96	AS56048 China Mobile Communicaitons Corporation	`2.52ms` from Beijing, CN
18.219.152.160	AS16509 Amazon.com, Inc.	`0.15ms` from Columbus, US
45.181.18.0	AS269177 NEUTRA TELECOMUNICACOES DO BRASIL LTDA	`15.87ms` from Fortaleza, BR
51.77.66.160	AS16276 OVH SAS	`0.14ms` from Frankfurt am Main, DE
182.178.49.80	AS17557 Pakistan Telecommunication Company Limited	`4.50ms` from Karachi, PK
188.191.67.208	AS43258 Centr Servisnogo Oblslugovuvannya Ltd	`5.06ms` from Khmelnytskyi, UA
86.29.196.48	AS5089 Virgin Media Limited	`10.04ms` from London, GB
76.87.239.112	AS20001 Charter Communications Inc	`6.70ms` from Los Angeles, US
90.166.89.144	AS12479 Orange Espagne SA	`16.88ms` from Madrid, ES

Traceroute

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

traceroute -a -n -q1 -f4 203.180.146.100

traceroute to 203.180.146.100 (203.180.146.100): 64 hops max, 52 byte packets

4 [] 80.81.193.136 12.055 ms

5 [AS2497] 58.138.84.118 12.115 ms

6 [AS2497] 203.180.146.100 12.011 ms

Measurement taken from

IPinfo ProbeNet in Frankfurt am Main, DE

On October 30th 2025

What are IP address ranges?

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