Autonomous System details

AS2500

WIDE Project · wide.ad.jp

Japan

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AS2500 – WIDE Project

Field	Value
Country	Japan
Website	wide.ad.jp
Hosted domains	36
IPv4 addresses	65,536
IPv6 addresses	79,228,162,514,264,338,000,000,000,000
ASN type	Hosting
Registry	jpnic
Updated	19 years ago on Nov 14, 2006

Netblock	Company	Num of IPs
203.178.128.0/17	WIDE Project	32,768
133.4.128.0/18	Japan Network Information Center	16,384
202.249.0.0/18	WIDE Project	16,384

Netblock	Company
2001:200::/32	WIDE project

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WHOIS Details

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                                                ASHandle:       AS2500
                                                OrgID:          AS2500
                                                ASName:         AS2500
                                                ASNumber:       AS2500
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 36 domain names hosted across 30 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
203.178.129.198	████████	3
203.178.135.189	██████	3
203.178.129.197	█████████	2
203.178.129.204	██████████	2
203.178.135.83	███████	1
203.178.132.94	██████████	1
202.249.50.48	██████████	1
203.178.138.223	██████████	1
203.178.142.140	███████	1
203.178.136.59	██████████	1

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Hosted Domains API & Database

Peers

There are 330 peers for this ASN.

Peers	Name
AS10000	Nagasaki Cable Media Inc.
AS10002	IGAUENO CABLE TELEVISION CO.,LTD
AS10004	Phoenix Communications Inc.
AS10010	TOKAI Communications Corporation
AS10013	FreeBit Co.,Ltd.
AS10019	Matsusaka Cable-TV Station Inc.
AS10111	Zeofast Network
AS10158	Kakao Corp
AS10222	Multibyte Info Technology Limited
AS10310	Yahoo Holdings Inc.
AS11019	HAProxy Technologies, Inc.
AS12654	Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
AS131077	Deloitte Tohmatsu Group LLC
AS131156	LAC Co., Ltd.
AS131158	Nara Institute of Science and Technology, National University Corporation
AS131161	NEC Corporation
AS131314	CBC Tech International Limited
AS13150	CATO NETWORKS LTD
AS131921	GMO GlobalSign Holdings K.K.
AS131923	MCAT Ltd.
AS131926	Cable Television Saiki Co. , Ltd.
AS131929	Yamanashi CATV Co,. ltd
AS131930	Tokyo Broadcasting System Television, Inc.
AS131931	Aomori Cable TV Co., Ltd.
AS131934	ICC Corporation
AS131937	Joetsu Cable Vision
AS131938	NISSAN MOTOR CO.,LTD.
AS131942	Gurunavi, Inc.
AS131943	Goto tv
AS131948	FORNEXT Inc.
AS131949	General Incorporated Foundation Aso Telework Center
AS131952	Asahikawa Cable Television Co., Ltd.
AS131958	Tama Cable Network Co.,Ltd.
AS131960	MBO holdings Inc.
AS131965	Xserver Inc.
AS131966	I-NET CORP.
AS131970	Hikarinet Inc.
AS131982	Uenohara Broadband Communications Inc.
AS131986	ITOCHU Cable Systems Corp.
AS132132	MyRepublic Ltd.
AS132203	Tencent Building, Kejizhongyi Avenue
AS132825	MYTEK TRADING PTY LTD
AS133199	SonderCloud Limited
AS13335	Cloudflare, Inc.
AS133815	PT Primacom Interbuana
AS133840	PT Jala Lintas Media
AS133847	Anpple Tech Enterprise
AS13445	Cisco Webex LLC
AS134835	Starry Network Limited
AS135607	Infinivan Incorporated
AS136106	PT. Mega Akses Persada
AS136907	HUAWEI CLOUDS
AS137409	GSL Networks Pty LTD
AS137831	SEA IX
AS138033	BBIX, Inc
AS138384	Rakuten Mobile Network, Inc.
AS138699	TIKTOK PTE. LTD.
AS138915	Kaopu Cloud HK Limited
AS138968	rainbow network limited
AS138997	Eons Data Communications Limited
AS139076	EnjoyVC Japan Corporation
AS139341	ACE
AS139468	DC Communications Inc.
AS140627	OneQode
AS140951	IPTP Networks
AS141109	PT Omni Cloud Indonesia
AS141682	APIDT Infrastructure Pty Ltd
AS142132	263 Global Communications Limited
AS146969	SB Technology Corp.
AS146972	TOYO Engineering Corporation
AS146981	Nekojarashi Inc.
AS147094	PT. MITRA VISIONER PRATAMA
AS147168	PT NTT Indonesia
AS149042	Silicon Cloud Global (US)
AS14907	Wikimedia Foundation Inc.
AS149513	Vertex Connectivity LLC
AS149522	OneCubit Co., Ltd.
AS150359	Cable Television TOYAMA Inc.
AS150369	TelHi Corporation
AS150723	Mega Limited
AS151376	Solare Hotels and Resorts Co., Ltd.
AS151378	Credit SAISON Co., Ltd.
AS151385	Japanet Holdings Co.,Ltd.
AS15169	Google LLC
AS154324	AltusCloud Pte. Ltd.
AS15695	Expereo International BV
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.
AS16265	LeaseWeb Network B.V.
AS17433	Hytron Network Services Limited
AS17514	Otsuka Corp.
AS17534	NSK Co.,Ltd.
AS17676	SoftBank Corp.
AS17682	296 BROAD NET Com Inc
AS17683	Wingtechnology Communications, Inc.
AS17686	ACCELIA
AS17707	AS for DATAHOTEL, which is one of iDC in Japan,
AS17893	Palau National Communications Corp.
AS17931	Netforest,Inc.
AS17932	Japan Advanced Institute of Science and Technology
AS17939	miyazaki cabletelevision network Co.,LTD

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ASN API & Database

Upstreams

There are 3 upstreams for this ASN.

upstreams	Name
AS17676	SoftBank Corp.
AS2914	NTT America, Inc.
AS6939	Hurricane Electric LLC

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ASN API & Database

Downstreams

There are 18 downstreams for this ASN.

Downstreams	Name
AS131158	Nara Institute of Science and Technology, National University Corporation
AS141682	APIDT Infrastructure Pty Ltd
AS17932	Japan Advanced Institute of Science and Technology
AS23634	WIDE Project
AS23799	National Defense Academy
AS2501	The University of Tokyo
AS2914	NTT America, Inc.
AS38635	Keio University
AS4690	WIDE Project
AS4717	WIDE Project
AS4718	Cyber Kansai Project
AS4777	Asia Pacific Network Information Centre
AS55384	Japan Advanced Institute of Science and Technology
AS63783	Chiba University of Commerce
AS6939	Hurricane Electric LLC
AS7660	Asia Pacific Advanced Network - Japan
AS7667	KDDI Research, Inc.
AS9367	Institute of Science Tokyo

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
203.178.154.130	AS2500 WIDE Project	`1.96ms` from Tokyo, JP
2001:200:13f:3708::1	AS2500 WIDE Project	`0.75ms` from Tokyo, JP
133.4.182.192	AS2500 WIDE Project	`1.17ms` from Tokyo, JP
133.4.181.96	AS2500 WIDE Project	`1.20ms` from Tokyo, JP
203.178.132.65	AS2500 WIDE Project	`2.69ms` from Tokyo, JP
2001:200:134:1::a	AS2500 WIDE Project	`0.62ms` from Tokyo, JP
203.178.135.14	AS2500 WIDE Project	`0.79ms` from Tokyo, JP
203.178.146.102	AS2500 WIDE Project	`8.54ms` from Tokyo, JP
2001:200:184:1::170	AS2500 WIDE Project	`20.51ms` from Tokyo, JP
203.178.162.97	AS2500 WIDE Project	`0.74ms` from Tokyo, JP
2001:200:601:f4::1	AS2500 WIDE Project	`0.57ms` from Tokyo, JP
2001:200:1ba:1::1	AS2500 WIDE Project	`9.15ms` from Tokyo, JP
2001:200:180:33::20	AS2500 WIDE Project	`0.84ms` from Tokyo, JP
203.178.130.66	AS2500 WIDE Project	`1.40ms` from Tokyo, JP
203.178.129.60	AS2500 WIDE Project	`0.47ms` from Tokyo, JP
202.249.6.1	AS2500 WIDE Project	`1.47ms` from Tokyo, JP
2001:200:1bc::17	AS2500 WIDE Project	`8.22ms` from Osaka, JP
203.178.131.161	AS2500 WIDE Project	`0.61ms` from Tokyo, JP
2001:200:1b1::1	AS2500 WIDE Project	`3.91ms` from Tokyo, JP
203.178.134.20	AS2500 WIDE Project	`9.50ms` from Tokyo, JP
202.249.10.65	AS2500 WIDE Project	`1.00ms` from Tokyo, JP
2001:200:13d::221	AS2500 WIDE Project	`0.53ms` from Tokyo, JP
2001:200:1d8::	AS2500 WIDE Project	`1.45ms` from Tokyo, JP
2001:200:606:f::217	AS2500 WIDE Project	`0.56ms` from Tokyo, JP
202.249.37.254	AS2500 WIDE Project	`0.80ms` 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
84.85.178.228	AS1136 KPN B.V.	`1.94ms` from Amsterdam, NL
84.130.65.36	AS3320 Deutsche Telekom AG	`4.62ms` from Berlin, DE
85.100.99.196	AS9121 Turk Telekomunikasyon Anonim Sirketi	`7.32ms` from Bursa, TR
198.255.8.4	AS30058 FDCservers.net	`0.17ms` from Denver, US
62.158.40.180	AS3320 Deutsche Telekom AG	`2.23ms` from Duesseldorf, DE
68.62.72.148	AS7922 Comcast Cable Communications, LLC	`8.15ms` from Flint, US
196.250.55.84	AS37515 iConnectSA (Pty) Ltd	`0.13ms` from Johannesburg, ZA
4.234.188.84	AS8075 Microsoft Corporation	`0.69ms` from London, GB
34.94.65.132	AS396982 Google LLC	`0.10ms` from Los Angeles, US
98.53.124.180	AS7922 Comcast Cable Communications, LLC	`5.14ms` from Miami, US
221.224.186.84	AS4134 CHINANET BACKBONE	`7.03ms` from Nanjing, CN
70.174.211.100	AS22773 Cox Communications Inc.	`6.13ms` from Phoenix, US
138.232.48.52	AS1110 University of Innsbruck	`8.63ms` from Vienna, AT
93.105.78.164	AS29314 VECTRA S.A.	`14.66ms` from Warsaw, PL
73.173.70.84	AS7922 Comcast Cable Communications, LLC	`6.86ms` from Ashburn, US
76.127.160.52	AS7922 Comcast Cable Communications, LLC	`6.95ms` from Boston, US
197.243.22.68	AS37228 KT RWANDA NETWORK Ltd	`0.37ms` from Kigali, RW
217.42.172.84	AS2856 British Telecommunications PLC	`5.99ms` from London, GB
68.232.146.84	AS16417 Cisco Systems Ironport Division	`0.82ms` from Santa Clara, US
179.157.45.164	AS28573 Claro NXT Telecomunicacoes Ltda	`9.54ms` from Sao Paulo, BR
105.98.87.20	AS36947 Telecom Algeria	`9.71ms` from Valencia, ES
175.152.227.116	AS4837 CHINA UNICOM China169 Backbone	`4.55ms` from Chengdu, CN
187.255.239.244	AS28573 Claro NXT Telecomunicacoes Ltda	`18.40ms` from Curitiba, BR
79.201.194.36	AS3320 Deutsche Telekom AG	`2.04ms` from Duesseldorf, DE
125.30.173.132	AS2497 Internet Initiative Japan Inc.	`1.90ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -m4 203.178.241.32

traceroute to 203.178.241.32 (203.178.241.32): 4 hops max, 52 byte packets

1 [AS199524] 82.117.226.1 0.183 ms

2 *

3 *

4 *

Measurement taken from

IPinfo ProbeNet in Incheon, KR

On April 13th 2026

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS2500 at robtex.

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