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AS2500

WIDE Project

APNIC JP Announced
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Organization
WIDE Project
WIDE-BB
Registered
Apr 05, 2002
24 years ago
IPv4 Prefixes
3
65,536 addresses
IPv6 Prefixes
1
65,536 × /48
BGP Neighbours
331
12 upstream/peer · 22 downstream · 319 collector-only

Registration

The registry's RDAP record for this AS number could not be retrieved; it is looked up again automatically.

AS Number AS2500 AS Name WIDE-BB Country Japan (JP) Registry APNIC Allocated Apr 05, 2002 AS Description WIDE-BB - WIDE Project, JP

IPv4 Prefixes

3 prefixes · 65,536 addresses Routing data as of 2026-10-08 00:00 UTC

PrefixRangeAddresses
133.4.128.0/18133.4.128.0 – 133.4.191.25516,384
202.249.0.0/18202.249.0.0 – 202.249.63.25516,384
203.178.128.0/17203.178.128.0 – 203.178.255.25532,768

IPv6 Prefixes

1 prefix · 65,536 × /48 Routing data as of 2026-10-08 00:00 UTC

PrefixAddresses
2001:200::/32296

BGP Neighbours

331 unique neighbours · 12 upstream/peer · 22 downstream · 319 collector-only. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries.

Upstream & peer side (12)

Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers.

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS2914NTT-DATA-2914 - NTT America, Inc.75,595499,642127,090
AS17676GIGAINFRA - SoftBank Corp.34,004246,00312,658
AS6939HURRICANE - Hurricane Electric LLC25,90880,97947,524
AS7660APAN-JP - Asia Pacific Advanced Network - Japan6,65415,6805,634
AS9002RETN-AS RETN Limited1,72213,6671,627
AS2516KDDI - KDDI CORPORATION2213,255610
AS141682AIPL-AS-AP - APIDT Infrastructure Pty Ltd164678100
AS24482SGGS-AS-AP - SG.GS140859216
AS7530BBTower-Lab - BroadBand Tower, Inc.1343203
AS9583SIFY-AS-IN - Sify Limited421,51341
AS20326TERASWITCH - TeraSwitch Networks Inc.3622554
AS132132REPUBLICTELECOM-SG - MyRepublic Ltd.16280

Downstream side (22)

Networks seen to the right of this AS in BGP paths — networks whose routes it carries, typically its customers (downstreams).

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS141682AIPL-AS-AP - APIDT Infrastructure Pty Ltd6081,005327
AS4690WIDE-SFO - WIDE Project481332348
AS55384JAIST-EXP - Japan Advanced Institute of Science and Technology372331327
AS17932JAIST - Japan Advanced Institute of Science and Technology356279292
AS7660APAN-JP - Asia Pacific Advanced Network - Japan2872,2278
AS63783CUC - Chiba University of Commerce2566600
AS23799NDA - National Defense Academy2551,3160
AS4717AI3 - WIDE Project2435332
AS131158NAIST-AS - Nara Institute of Science and Technology, National University Corporation205185104
AS38635KEIO-NET - Keio University377656
AS2907SINET-AS - Research Organization of Information and Systems, National Institute of Informatics293915
AS4718CKP - Cyber Kansai Project222829
AS4777APNIC-COLO - Asia Pacific Network Information Centre212528
AS7667KDDLAB - KDDI Research, Inc.18200
AS9367ISCT - Institute of Science Tokyo14210
AS2501UTnet - The University of Tokyo13800
AS2515JPNIC - Japan Network Information Center13284
AS10014NIHON-U - Nihon University101010
AS23634E-DNS-JP - WIDE Project837
AS2516KDDI - KDDI CORPORATION644
AS6939HURRICANE - Hurricane Electric LLC440
AS7500M-ROOT-DNS - WIDE Project101

Collector-only (319)

Networks seen to the left of this AS only when they peer directly with a RIPE RIS route collector, so the adjacency may be an artefact of that peering; many of them also appear on the downstream side.

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS4713OCN - NTT DOCOMO BUSINESS,Inc.13,990144,76633,984
AS137409GSLNETWORKS-AS-AP - GSL Networks Pty LTD1,7248,2044,059
AS13335CLOUDFLARENET - Cloudflare, Inc.1,0297,838505
AS58717SUMMITCOMMUNICATIONS-BD - Summit Communications Ltd1,0033,2321,695
AS9498BBIL-AP - BHARTI Airtel Ltd.9728,2772,415
AS38195SUPERLOOP-AS-AP - Superloop4682,372267
AS64049RJIPL-SG - Reliance Jio Infocomm Pte Ltd Singapore4534,677802
AS4777APNIC-COLO - Asia Pacific Network Information Centre3212,27431
AS9318SKB-AS-KR - SK Broadband Co Ltd3204,2200
AS35280F5 F5 Networks SARL2941,449184
AS2497IIJ - Internet Initiative Japan Inc.2682,833551
AS1828UNITAS - Unitas Global2541,49297
AS4651NTPCL-AS-AP - National Telecom Public Company Limited2263,0600
AS20473AS-VULTR - The Constant Company, LLC220273576
AS9304HUTCHISON-AS-AP - HGC Global Communications Limited2061,883354
AS9507NEXTHOP-AS-AP - NextHop Pty Ltd2031,113139
AS25152K-ROOT-SERVER Reseaux IP Europeens Network Coordination Centre (RIPE NCC)17469520
AS216211CYBERVERSE-BACKBONE CYBERVERSE LLC170121301
AS45899VNPT-AS-VN - VNPT Corp1641,3510
AS2907SINET-AS - Research Organization of Information and Systems, National Institute of Informatics1091,11674
AS18403FPT-VN - FPT Telecom Company96640199
AS7713telkomnet-as-ap - PT Telekomunikasi Indonesia942434
AS9505TWGATE-AP - Taiwan Internet Gateway81863169
AS60068CDN77 Datacamp Limited7766963
AS2687ATGS-MMD-AS - AT&T Enterprises, LLC7039717
AS55900GLBB-JP - GLBB Japan KK6819929
AS4229ZEN-NET - Zenlayer Inc5843223
AS9902NEOCOMISP-KH-AP - NEOCOMISP LIMITED, IPTX Transit and Network Service Provider in Cambodia.5632719
AS9381HKBNES-AS-AP - HKBN Enterprise Solutions HK Limited519110
AS140951IPTP - IPTP Networks49383156
AS138997EDCL-AS-AP - Eons Data Communications Limited4116448
AS15830Equinix Equinix (EMEA) Acquisition Enterprises B.V.312059
AS10310YAHOO-1 - Yahoo Holdings Inc.306293
AS199524GCORE G-Core Labs S.A.3010814
AS58807CMI-INT-AS - China Mobile International Limited29561218
AS38040GLOBAL-TRANSIT-TOT-IIG-TH - TOT Public Company Limited2862659
AS135607INFINIVAN-AS-AP - Infinivan Incorporated251120
AS64050BGNL-HK - BGP Network Limited243080
AS15169GOOGLE - Google LLC234,765586
AS4775GLOBE-TELECOM-AS - Globe Telecoms221,1413
AS9924TFN-TW - Taiwan Fixed Network, Telco and Network Service Provider.22397606
AS10010TOKAI - TOKAI Communications Corporation2123621
AS17433HNSL-AS-AP - Hytron Network Services Limited214527
AS9886CTCSCITECHLIMITED-AS-AP - CTCSCI TECH LIMITED184912
AS14907WIKIMEDIA - Wikimedia Foundation Inc.172713
AS30058FDCSERVERS - FDCservers.net1712312
AS9009M247 M247 Europe SRL1618925
AS36351SOFTLAYER - IBM Cloud16474105
AS55818MCIX-AS-AP - MC-IX Matrix Internet Exchange RS-1162448
AS147094MVNET-AS-ID - PT. MITRA VISIONER PRATAMA16300
AS7529NETIRD - GMO NetIRD, Inc.15454
AS49544i3Dnet i3D.net B.V15404
AS150369Infal - TelHi Corporation151622
AS51847NEAROUTE Nearoute Limited1410618
AS19551INCAPSULA - Incapsula Inc13335217
AS49304SAKURA-AS SAKURA LINK LIMITED137220
AS18106VIEWQWEST-SG-AP - Viewqwest Pte Ltd123311
AS4862EQUANT-ASIA - Orange Business AS for Asia11758
AS9354TDNC - Community Network Center Inc.101738
AS38158CBN-AS-ID - PT. Cyberindo Aditama10148
AS45430SBN-AWN-IIG-AS-AP - SBN-IIG/AWN-IIG transit provider103643
AS136106FIBERSTAR-AS-ID - PT. Mega Akses Persada10171
AS138915KAOPU-HK - Kaopu Cloud HK Limited10398
AS17686ACCELIA - ACCELIA94242
AS3258XTOM-JAPAN xTom Japan Corporation813434
AS33353SBS - Sony Interactive Entertainment LLC88674
AS59105HOMENOC - Home NOC Operators Group8136
AS18046DONGFONG-TW - DongFong Technology Co. Ltd.7922
AS38082IIT-TIG-AS-AP - True International Gateway Co., Ltd.715031
AS7506GMO-I-R1 - GMO Internet, Inc.66712
AS7679QTNET - QTnet,Inc.6551
AS53587AZT - AZURE TECHNOLOGY CO., LIMITED6140
AS131948FORNEXT - FORNEXT Inc.6174
AS396356LATITUDE-SH - Latitude.sh65811
AS42WOODYNET-1 - WoodyNet, Inc.57268
AS4826VOCUS-BACKBONE-AS - Vocus Connect International Backbone5110
AS6660CWASIA Vodafone Enterprise Equipment Limited5631
AS9246GTA-AP - Teleguam Holdings, LLC5221
AS20940AKAMAI-ASN1 Akamai International B.V.5271105
AS45903CMCTELECOM-VN - CMC Telecom Infrastructure Company5920
AS46475LIMESTONENETWORKS - Limestone Networks, Inc.5162
AS62955EBAYMTBB - eBay, Inc5251
AS149522ONECUBITCOLTD-AS-AP - OneCubit Co., Ltd.534
AS906DMIT - DMIT Cloud Services4274
AS983AKARI-NETWORKS - Akari Networks LLC4295
AS9370SAKURA-B - SAKURA Internet Inc.4917
AS23816YAHOO - LY Corporation4142
AS58325BANDWIDTH-ASIA Hydra Communications Ltd4262
AS63774KAMOIKE-NET - Kamoike.net LLP4127
AS140627ONEQODEASSETS-AS-AP - OneQode4151
AS147168NTTINDONESIA-AS-ID - PT NTT Indonesia461
AS394354CIRA-CLOUD2 - CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements Internet49191
AS963N963-AS-AP - N963 PTE. LTD.3600
AS3786LGDACOM-KR - LG DACOM Corporation36860
AS4694IDCF - IDC Frontier Inc.32459
AS9299IPG-AS-AP - Philippine Long Distance Telephone Company330
AS9457DREAMX-AS-KR - DREAMLINE CO.32050
AS10111ZEONET-AS-AP - Zeofast Network3100
AS17683WINTECH-COM - Wingtechnology Communications, Inc.3142
AS22697ROBLOX-PRODUCTION - Roblox3102

Showing the top 100 of 319 by AS paths.