Longest Match / Organisations

Directory

Organisations

Who address space is registered to, ranked by how much they hold. The 5,000 largest of 89,919 are listed; the search box covers all of them. IPv4 is counted in addresses and IPv6 in /64 networks, and the two are never added, because no unit makes them comparable. Holders come from the bulk whois RIPE, APNIC and AFRINIC publish, so North and South American holders are largely missing.

Organisations
89,919
Holding a /22 or any IPv6
46,365
IPv4 space named
52%
Registries covered
3 of 5

OrganisationIPv4 addressesIPv6 /64sBlocksRegistry
Universitaet Paderborn70,656-2RIPE
Infracom Managed Services AB70,40073,014,509,57228RIPE
National Knowledge Network70,14417,665,200,488,4517APNIC
Renault SAS70,14434,359,738,36914RIPE
Eberhard-Karls-Universitaet Tuebingen70,14416,842,7546RIPE
La Francaise des Jeux70,144-19RIPE
Olivetti S.p.A.70,144-3RIPE
Skandinaviska Enskilda Banken AB69,896-32RIPE
Technical University of Munich69,88838,654,705,66621RIPE
"Cloud Technologies" LLC trading as Cloud.ru69,88834,359,738,36977RIPE
Cyberzone S.A.69,88834,359,738,36918RIPE
Johannes Gutenberg-Universitaet Mainz69,8884,294,967,2974RIPE
University Linz69,888131,0746RIPE
DBCDE69,88865,5378APNIC
Victoria University69,888-3APNIC
One Hungary Ltd.69,63268,719,476,73729RIPE
Marc Pauls (AlphaCron Datensysteme)69,63234,359,738,3698RIPE
TELECOM ITALIA SPARKLE S.p.A.69,6328,589,934,594101RIPE
Aeven A/S69,6324,294,967,2973RIPE
First Rand Bank Limited69,6324,294,967,2979AFRINIC
Masarykova univerzita - Ustav vypocetni techniky69,6324,294,967,2973RIPE
Ministry of Communications and Information Technology69,6324,294,967,2973AFRINIC
MTN Rwandacell69,6324,294,967,2973AFRINIC
FIRST SERVER, SOCIEDAD LIMITADA69,63218,874,385264RIPE
IDSC69,632-3AFRINIC
Telenet Group NV69,632-4RIPE
Universite de Neuchatel69,632-4RIPE
World Internetwork Corporation Co., Ltd69,632-4APNIC
Baxet Group Inc.69,504-279RIPE
SSC-ICT Haaglanden69,376268,435,45710RIPE
Friedrich-Alexander-Universitaet Erlangen-Nuernberg69,376524,2899RIPE
Krixe Pte. Ltd.69,120107,374,182,404100RIPE
Adamo Telecom Iberia S.A.U69,120-51RIPE
JSC "ER-Telecom Holding" Saratov Branch69,120-38RIPE
Universita' degli Studi di Modena e Reggio Emilia69,120-4RIPE
Cooperatieve Rabobank U.A.68,86434,359,803,90610RIPE
Airbus Defence and Space SAS68,86434,359,738,3695RIPE
Angelnet Limited68,86434,359,738,36920RIPE
Volta LLC68,86416,842,75414RIPE
JSC "ER-Telecom Holding" Omsk Branch68,864-32RIPE
Fastly, Inc.68,60834,360,000,51416RIPE
ASML Netherlands B.V.68,60834,359,738,3694RIPE
SIX Group Services AG68,60834,359,738,3697RIPE
Universite de Strasbourg68,60834,359,738,3694RIPE
SunnyVision Limited68,6084,294,967,29723APNIC
TOT Mobile Co LTD68,6084,294,967,2975APNIC
Materna Information & Communications SE68,608196,6119RIPE
SkyQuantum Internet Service LLC68,608-181RIPE
Stichting VU68,608-4RIPE
DataWeb Global Group B.V.68,35268,719,476,73861RIPE
Poste Italiane S.p.A.68,35238,654,705,66616RIPE
The University of Wollongong68,3524,294,967,29711APNIC
Nordea Bank Abp68,35265,5378RIPE
Leonardo S.p.A.68,09634,359,738,3698RIPE
marbis GmbH68,09634,359,738,36979RIPE
Ministry of Health68,0968,589,934,5945APNIC
Posix Systems (Pty) Ltd68,0964,295,032,83413AFRINIC
JSC IOT68,0964,294,967,29767RIPE
The Cloud Networks Limited68,0964,294,967,29714RIPE
Zajil International Telecom Company KSCC68,0964,294,967,2978RIPE
CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Developpement68,096-2RIPE
Direction generale du numerique et des systemes d'information (DGNSI) Etat de Vaud68,096-2RIPE
Paul Scherrer Institut68,096-2RIPE
GeoSphere Austria67,969131,0746RIPE
Beyond Tomorrow Ltd67,8403,367,254,360,162181RIPE
Linkt SAS67,84077,309,411,33242RIPE
Berner Fachhochschule67,84034,359,803,9065RIPE
Saint Gobain Group Digital & IT International SAS67,84034,359,738,36911RIPE
Schweizerische Radio- und Fernsehgesellschaft67,84034,359,738,3694RIPE
Universitaet Basel67,84034,359,738,3694RIPE
Australian Crime Commission67,8404,295,032,8345APNIC
University of Kent67,8404,294,967,2974RIPE
Department of Transport67,840-6APNIC
Technische Universitaet Dortmund67,840-3RIPE
University of London67,840-3RIPE
Vantiva SA67,840-23RIPE
EDIS GmbH67,63234,359,738,369279RIPE
Sat-Trakt D.O.O.67,584171,798,691,84540RIPE
ADP GSI FRANCE SAS67,58434,359,803,90610RIPE
Kemira Oyj67,58434,359,803,9065RIPE
DPG Media Group NV67,58434,359,738,3696RIPE
GOVERNMENT TECHNOLOGY AGENCY67,58421,476,802,56331APNIC
Iranian Research Organization for Science & Technology67,5848,589,934,5947RIPE
ComClark Network & Technology Corp67,5844,294,967,2978APNIC
Digital Ocean, Inc.67,5844,294,967,2974APNIC
Embriq AS67,5844,294,967,2974RIPE
EntServ UK Limited67,5844,294,967,2976RIPE
HL komm Telekommunikations GmbH67,5844,294,967,29712RIPE
MTN CONGO67,5844,294,967,2974AFRINIC
NASK Spolka Akcyjna67,5844,294,967,2975RIPE
Russmedia IT GmbH67,5844,294,967,297119RIPE
SPTEL PTE. LTD.67,5844,294,967,2979APNIC
Vodacom Mocambique S.A67,5844,294,967,2973AFRINIC
Vodacom Tanzania Ltd67,5844,294,967,2974AFRINIC
Anglo American South Africa (Pty) Ltd67,584-8AFRINIC
Australian Postal Corporation67,584-2APNIC
Cheung Yuk Tong Aaron67,584-3APNIC
Conocophillips Norge Corporation67,584-3RIPE
CONTROL DATA (THAILAND) COMPANY LIMITED67,584-2APNIC
Internetbolaget Sweden AB67,584-189RIPE
NTT Australia Pty Ltd67,584-2APNIC
NCC Sverige AB67,532-285RIPE
Internet Vikings International AB67,328996,432,478,2381,905RIPE
Lantmateriet67,328196,61011RIPE
EgyNet67,328-23AFRINIC
Fonterra Co-operative Group Ltd67,328-4APNIC
University of Sydney67,328-7APNIC
Polismyndigheten67,09665,537211RIPE
Council of the EU, General Secretariat67,07234,359,738,3694RIPE
XFone 018 Ltd67,07234,359,738,36911RIPE
LINZ STROM GAS WAERME GmbH fuer Energiedienstleistungen und Telekommunikation67,0724,295,032,8348RIPE
American Express Travel Related Services Company, Inc67,0724,294,967,2978RIPE
GTS Telecom SRL67,0724,294,967,29745RIPE
Totalforsvarets Forskningsinstitut, FOI67,07265,5378RIPE
Universita' degli Studi di Napoli Federico II67,07265,5378RIPE
Universite de Fribourg67,072-2RIPE
University of Newcastle upon Tyne67,072-2RIPE
Ford-Extranet66,87265,53723RIPE
Swedbank AB66,8364,294,967,2978RIPE
Brno University of Technology66,81634,360,066,0516RIPE
Dataport AoR66,81634,359,803,9065RIPE
Universitaet zu Koeln66,81634,359,738,3695RIPE
4iG Telecommunications Holding Zrt66,8164,294,967,2979RIPE
Institute of Technology Bandung66,8164,294,967,2974APNIC
Universiteit Twente66,816131,0746RIPE
Umea University66,816131,0736RIPE
DZHUVA LTD66,81665,5379RIPE
Universitaet St. Gallen66,81665,5373RIPE
Acer Computer GmbH66,816-5RIPE
Defence Science and Technology Laboratory66,816-6RIPE
Department of the Premier and Cabinet66,816-3APNIC
Department of Transport and Main Roads66,816-3APNIC
Macquarie University66,816-3APNIC
NextGen.Net Pty Ltd66,816-4APNIC
Technische Universiteit Eindhoven66,816-3RIPE
Toi Ohomai Institute of Technology66,816-3APNIC
Ceske vysoke uceni technicke v Praze66,58465,5398RIPE
BKW Energie AG66,56465,5374RIPE
TELCO OI SAS66,56068,719,476,7373AFRINIC
FZI Forschungszentrum Informatik66,56034,359,803,9064RIPE
Ministero della Difesa66,56034,359,803,9064RIPE
Universitaet Klagenfurt66,56034,359,803,9064RIPE
Andritz AG66,56034,359,738,3693RIPE
Broermann Holding GmbH66,56034,359,738,3693RIPE
Centre des technologies de l'information de l'Etat66,56034,359,738,3693RIPE
Euro-Information-Europeenne de Traitement de l'Information SAS66,56034,359,738,3693RIPE
Exa Networks Limited66,56034,359,738,3695RIPE
Flughafen Muenchen GmbH66,56034,359,738,36918RIPE
HeLi NET Telekommunikation GmbH & Co.66,56034,359,738,3696RIPE
Helse Vest IKT AS66,56034,359,738,3694RIPE
Johann Wolfgang Goethe-Universitat Frankfurt am Main66,56034,359,738,3693RIPE
Koninklijke Ahold Delhaize N.V.66,56034,359,738,3693RIPE
Ministerie van Justitie en Veiligheid66,56034,359,738,3693RIPE
Neos Networks Limited66,56034,359,738,3693RIPE
Netassist International EOOD66,56034,359,738,3696RIPE
NHS National Services Scotland66,56034,359,738,3693RIPE
Ruhr-Universitaet Bochum66,56034,359,738,3695RIPE
Statens Vegvesen66,56034,359,738,3693RIPE
Statkraft SF66,56034,359,738,3693RIPE
Universitaet Muenster, CIT66,56034,359,738,3693RIPE
Universitaet Siegen66,56034,359,738,3693RIPE
Service-now.com66,5608,589,934,5933APNIC
AEMO - Australian Energy Market Operator Limited66,5604,294,967,2973APNIC
AURA Fiber A/S66,5604,294,967,2975RIPE
CELTEL DRC66,5604,294,967,2973AFRINIC
European Centre for Medium-Range Weather Forecasts (ECMWF)66,5604,294,967,2973RIPE
GRIFFITH UNIVERSITY66,5604,294,967,2973APNIC
Haridus- ja Teadusministeerium66,5604,294,967,29718RIPE
Herault Telecom SAS66,5604,294,967,2974RIPE
IREN ENERGIA S.P.A66,5604,294,967,29725RIPE
Junta de Andalucia66,5604,294,967,2973RIPE
Megaport (UK) Limited66,5604,294,967,2973RIPE
Metropolitan Health Service66,5604,294,967,2973APNIC
Web Africa Networks (Pty) Ltd66,5604,294,967,2973AFRINIC
Wirels Connect (PTY) Ltd66,5604,294,967,2973AFRINIC
Universite Catholique de Louvain66,5601,114,1147RIPE
Arbetsformedlingen66,560131,0745RIPE
University of Reading66,56065,5375APNIC
University of Sussex66,56065,5376RIPE
Assumption University66,560-4APNIC
HDI AG66,560-2RIPE
Intracom Single Member S.A. Telecom Solutions66,560-5RIPE
JSC "ER-Telecom Holding" Rostov-na-Donu Branch66,560-36RIPE
National Oceanography Centre66,560-5RIPE
Queensland Department of Education66,560-2APNIC
Skane Lans Landsting66,560-2RIPE
Stichting Sint Franciscus Vlietland Groep66,560-2RIPE
Swinburne University of Technology66,560-2APNIC
Syniverse Technologies SARL66,560-5RIPE
The ESRF66,560-2RIPE
Universitaet Augsburg66,560-2RIPE
University of Otago66,560-5APNIC
University of Stellenbosch66,560-2AFRINIC
JSC "ER-Telecom Holding" Tomsk Branch66,4321,02542RIPE
Vysoka skola banska - Technicka univerzita Ostrava66,322196,61914RIPE
Australian Communications and Media Authority66,3044,294,967,2974APNIC
Australian Federal Police66,3044,294,967,2974APNIC
Central Queensland University66,3044,294,967,2974APNIC
Katholieke Universiteit Leuven66,3044,294,967,2974RIPE
Nicolaus Copernicus University in Torun66,3044,294,967,2975RIPE
Fraunhofer-Institut fuer Kommunikation, Informationsverarbeitung und Ergonomie FKIE66,304131,0745RIPE
The University of Auckland66,304131,0734APNIC
Charite - Universitaetsmedizin Berlin66,30465,5374RIPE
TX Group AG66,30465,5374RIPE
Chulalongkorn University66,304-4APNIC
Hochschule Hannover66,304-2RIPE
Hong Kong University of Science and Technology66,304-3APNIC
MTA Wigner Fizikai Kutatokozpont66,304-2RIPE
SAIC VOLKSWAGEN AUTOMOTIVE CO.LTD.66,304-3APNIC
SAS AB66,304-4RIPE
The Open University66,304-2RIPE
Universitaet Bayreuth66,304-4RIPE
Universitaet des Saarlandes66,304-4RIPE
Sveriges Radio AB66,072131,0748RIPE
University of York66,05665,5395RIPE
Horyzont Technologie Internetowe sp.z.o.o.66,04881,604,444,16641RIPE
Rheinische Friedrich-Wilhelms-Universitaet Bonn66,04834,359,738,36910RIPE
Schaeffler Technologies AG & Co. KG66,04834,359,738,3695RIPE
Zurich University of Applied Sciences (ZHAW)66,04834,359,738,3693RIPE
The University of New England66,0484,295,032,8345APNIC
Charles Sturt University66,0484,294,967,2973APNIC
EDITH COWAN UNIVERSITY66,0484,294,967,2973APNIC
Institut Mines-telecom trading as Telecom Paris site de Palaiseau66,0484,294,967,2974RIPE
NETSTAR (SG) PTE. LTD.66,0484,294,967,2977APNIC
Queensland University of Technology66,0484,294,967,2973APNIC
University of Canterbury66,0484,294,967,2973APNIC
Department of Health66,04865,5373APNIC
Foundation of Research and Technology Hellas66,04865,5374RIPE
National Research Center "Kurchatov Institute"66,04865,5376RIPE
Universita' degli Studi di Roma Tor Vergata66,04865,5374RIPE
ANZ BANK NEW ZEALAND LIMITED66,048-3APNIC
City of Melbourne66,048-3APNIC
CoCre8 IT Services (PTY) LTD66,048-3AFRINIC
Ecole Normale Superieure de Lyon EPSCP66,048-3RIPE
Hochschule Worms66,048-3RIPE
James Cook University66,048-3APNIC
Landgate66,048-3APNIC
Max-Planck-Institut fuer Biochemie66,048-3RIPE
Meridian Energy Ltd66,048-2APNIC
Physikalisch-Technische Bundesanstalt66,048-3RIPE
Universitaet Hohenheim66,048-2RIPE
University of Tasmania66,048-3APNIC
UNIWERSYTET SLASKI W KATOWICACH66,048-3RIPE
Vattenfall AB65,844131,07412RIPE
Gesellschaft fuer wissenschaftliche Datenverarbeitung mbH, Goettingen65,80034,359,738,3694RIPE
kyberio GmbH65,79273,014,444,03513RIPE
Technische Universitaet Graz65,79234,359,803,9064RIPE
Achmea Interne Diensten N.V.65,79234,359,738,3693RIPE
Berliner Hochschule fuer Technik65,79234,359,738,3693RIPE
FMV65,79234,359,738,3693RIPE