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MAC address assignments by manufacturer

MAC (Media access control) codes are six byte numbers which uniquely identify network hardware. They are sent as part of the ethernet frame header. It is possible, using the list below to identify the manufacturer of a given network device, and a simple packet capture program, such as described in chapter 13 of Network programming in .NET to view what types of hardware are communicating on your network. This could be particularly useful if you are concerned that a third party may be using your network without your knowledge.

00-07-EAMassana Inc.
00-07-EBCisco Systems Inc.
00-07-ECCisco Systems Inc.
00-07-EDAltera Corporation
00-07-EEtelco Informationssysteme GmbH
00-07-EFLockheed Martin Tactical Systems
00-07-F0LogiSync Corporation
00-07-F1TeraBurst Networks Inc.
00-07-F2IOA Corporation
00-07-F3Think Engine Networks
00-07-F4Eletex Co. Ltd.
00-07-F5Bridgeco Co AG
00-07-F6Qqest Software Systems
00-07-F7Galtronics
00-07-F8ITDevices Inc.
00-07-F9Phonetics Inc.
00-07-FAITT Co. Ltd.
00-07-FBGiga Stream UMTS Technologies GmbH
00-07-FCAdept Systems Inc.
00-07-FDLANergy Ltd.
00-07-FERigaku Corporation
00-07-FFGluon Networks
00-08-00MULTITECH SYSTEMS INC.
00-08-01HighSpeed Surfing Inc.
00-08-02Compaq Computer Corporation
00-08-03Cos Tron
00-08-04ICA Inc.
00-08-05Techno-Holon Corporation
00-08-06Raonet Systems Inc.
00-08-07Access Devices Limited
00-08-08PPT Vision Inc.
00-08-09Systemonic AG
00-08-0AEspera-Werke GmbH
00-08-0BBirka BPA Informationssystem AB
00-08-0CVDA elettronica SrL
00-08-0DToshiba
00-08-0EMotorola BCS
00-08-0FProximion Fiber Optics AB
00-08-10Key Technology Inc.
00-08-11VOIX Corporation
00-08-12GM-2 Corporation
00-08-13Diskbank Inc.
00-08-14TIL Technologies
00-08-15CATS Co. Ltd.
00-08-16Bluetags A/S
00-08-17EmergeCore Networks LLC
00-08-18Pixelworks Inc.
00-08-19Banksys
00-08-1ASanrad Intelligence Storage Communications (2000) Ltd.
00-08-1BWindigo Systems
00-08-1C@pos.com
00-08-1DIpsil Incorporated
00-08-1ERepeatit AB
00-08-1FPou Yuen Tech Corp. Ltd.
00-08-20Cisco Systems Inc.
00-08-21Cisco Systems Inc.
00-08-22InPro Comm
00-08-23Texa Corp.
00-08-24Promatek Industries Ltd.
00-08-25Acme Packet
00-08-26Colorado Med Tech
00-08-27Pirelli Cables & Systems
00-08-28Koei Engineering Ltd.
00-08-29Aval Nagasaki Corporation
00-08-2APowerwallz Network Security
00-08-2BWooksung Electronics Inc.
00-08-2CHomag AG
00-08-2DIndus Teqsite Private Limited
00-08-2EMultitone Electronics PLC
00-08-4EDivergeNet Inc.
00-08-4FQualstar Corporation
00-08-50Arizona Instrument Corp.
00-08-51Canadian Bank Note Company Ltd.
00-08-52Davolink Co. Inc.
00-08-53Schleicher GmbH & Co. Relaiswerke KG
00-08-54Netronix Inc.
00-08-55NASA-Goddard Space Flight Center
00-08-56Gamatronic Electronic Industries Ltd.
00-08-57Polaris Networks Inc.
00-08-58Novatechnology Inc.
00-08-59ShenZhen Unitone Electronics Co. Ltd.
00-08-5AIntiGate Inc.
00-08-5BHanbit Electronics Co. Ltd.
00-08-5CShanghai Dare Technologies Co. Ltd.
00-08-5DAastra
00-08-5EPCO AG
00-08-5FPicanol N.V.
00-08-60LodgeNet Entertainment Corp.
00-08-61SoftEnergy Co. Ltd.
00-08-62NEC Eluminant Technologies Inc.
00-08-63Entrisphere Inc.
00-08-64Fasy S.p.A.
00-08-65JASCOM CO. LTD
00-08-66DSX Access Systems Inc.
00-08-67Uptime Devices
00-08-68PurOptix
00-08-69Command-e Technology Co. Ltd.
00-08-6AIndustrie Technik IPS GmbH
00-08-6BMIPSYS
00-08-6CPlasmon LMS
00-08-6DMissouri FreeNet
00-08-6EHyglo AB
00-08-6FResources Computer Network Ltd.
00-08-70Rasvia Systems Inc.
00-08-71NORTHDATA Co. Ltd.
00-08-72Sorenson Technologies Inc.
00-08-73DAP Design B.V.
00-08-74Dell Computer Corp.
00-08-75Acorp Electronics Corp.
00-08-76SDSystem
00-08-77Liebert HIROSS S.p.A.
00-08-78Benchmark Storage Innovations
00-08-79CEM Corporation
00-08-7AWipotec GmbH
00-08-7BRTX Telecom A/S
00-08-7CCisco Systems Inc.
00-08-7DCisco Systems Inc.
00-08-7EBon Electro-Telecom Inc.
00-08-7FSPAUN electronic GmbH & Co. KG
00-08-80BroadTel Canada Communications inc.
00-08-81DIGITAL HANDS CO. LTD.
00-08-82SIGMA CORPORATION
00-08-83Hewlett-Packard Company
00-08-84Index Braille AB
00-08-85EMS Dr. Thomas Wuensche
00-08-86Hansung Teliann Inc.
00-08-87Maschinenfabrik Reinhausen GmbH
00-08-88OULLIM Information Technology Inc .
00-08-89Echostar Technologies Corp
00-08-8AMinds@Work
00-08-8BTropic Networks Inc.
00-08-8CQuanta Network Systems Inc.
00-08-8DSigma-Links Inc.
00-08-8ENihon Computer Co. Ltd.
00-08-8FADVANCED DIGITAL TECHNOLOGY
00-08-90AVILINKS SA
00-08-91Lyan Inc.
00-08-92EM Solutions
00-08-93InnoVISION Multimedia Ltd. 000894
00-08-95DIRC Technologie GmbH & Co.KG
00-08-96Printronix Inc.
00-08-97Quake Technologies
00-08-98Gigabit Optics Corporation
00-08-99Netbind Inc.
00-08-9AAlcatel Microelectronics
00-08-9BICP Electronics Inc.
00-08-9CElecs Industry Co. Ltd.
00-08-9DUHD-Elektronik
00-08-9EBeijing Enter-Net co.LTD
00-08-9FEFM Networks
00-08-A0Stotz Feinmesstechnik GmbH
00-08-A1CNet Technology Inc.
00-08-A2ADI Engineering Inc.
00-08-A3Cisco Systems
00-08-A4Cisco Systems
00-08-A5Peninsula Systems Inc.
00-08-A6Multiware & Image Co. Ltd.
00-08-A7iLogic Inc.
00-08-A8Systec Co. Ltd.
00-08-A9SangSang Technology Inc.
00-08-AAKARAM
00-08-ABEnerLinx.com Inc.
00-08-ACToyo-Linx Co. Ltd. 0008AD
00-08-AEPacketfront
00-08-AFNovatec Corporation
00-08-B0BKtel communications GmbH
00-08-B1ProQuent Systems
00-08-B2SHENZHEN COMPASS TECHNOLOGY DEVELOPMENT CO. LTD
00-08-B3Fastwel
00-08-B4SYSPOL
00-08-B5TAI GUEN ENTERPRISE CO. LTD
00-08-B6RouteFree Inc.
00-08-B7HIT Incorporated
00-08-B8E.F. Johnson
00-08-B9KAON MEDIA Co. Ltd.
00-08-BAErskine Systems Ltd
00-08-BBNetExcell
00-08-BCIlevo AB
00-08-BDTEPG-US
00-08-BEXENPAK MSA Group
00-08-BFAptus Elektronik AB
00-08-C0ASA SYSTEMS
00-08-C1Avistar Communications Corporation
00-08-C2Cisco Systems
00-08-C3Contex A/S
00-08-C4Hikari Co. Ltd.
00-08-C5Liontech Co. Ltd.
00-08-C6Philips Consumer Communications
00-08-C7COMPAQ COMPUTER CORPORATION
00-08-C8Soneticom Inc.
00-08-C9TechniSat Digital GmbH
00-08-CATwinHan Technology Co. Ltd
00-08-CBZeta Broadband Inc.
00-08-CCRemotec Inc.
00-08-CDWith-Net Inc
00-08-CENippon Koei Power Systems Co. Ltd. 0008CF
00-08-D0Musashi Engineering Co. LTD.
00-08-D1KAREL INC.
00-08-D2ZOOM Networks Inc.
00-08-D3Hercules Technologies S.A.
00-08-D4IneoQuest Technologies Inc
00-08-D5Vanguard Managed Solutions
00-08-D6HASSNET Inc.
00-08-D7HOW CORPORATION
00-08-D8Dowkey Microwave
00-08-D9Mitadenshi Co. LTD
00-08-DASofaWare Technologies Ltd.
00-08-DBCorrigent Systems
00-08-DCWiznet
00-08-DDTelena Communications Inc.
00-08-DE3UP Systems
00-08-DFAlistel Inc.
00-08-E0ATO Technology Ltd.
00-08-E1Barix AG
00-08-E2Cisco Systems
00-08-E3Cisco Systems
00-08-E4Envenergy Inc
00-08-E5IDK Corporation
00-08-E6Littlefeet
00-08-E7SHI ControlSystems Ltd.
00-08-E8Excel Master Ltd.
00-08-E9NextGig
00-08-EAMotion Control Engineering Inc
00-08-EBROMWin Co. Ltd.
00-08-ECZonu Inc.
00-08-EDST&T Instrument Corp.
00-08-EELogic Product Development
00-08-EFDIBAL S.A.
00-08-F0Next Generation Systems Inc.
00-08-F1Voltaire
00-08-F2C&S Technology
00-08-F3WANY
00-08-F4Bluetake Technology Co. Ltd.
00-08-F5YESTECHNOLOGY Co. Ltd.
00-08-F6SUMITOMO ELECTRIC HIGHTECHS.co. ltd.
00-08-F7Hitachi Ltd Semiconductor & Integrated Circuits Gr
00-08-F8Guardall Ltd
00-08-F9Padcom Inc.
00-08-FAKarl E.Brinkmann GmbH
00-08-FBSonoSite Inc.
00-08-FCGigaphoton Inc.
00-08-FDBlueKorea Co. Ltd.
00-08-FEUNIK C&C Co. Ltd.
00-08-FFTrilogy Broadcast (Holdings) Ltd
00-09-00TMT
00-09-01Shenzhen Shixuntong Information & Technoligy Co
00-09-02Redline Communications Inc.
00-09-03Panasas Inc
00-09-04MONDIAL electronic
00-09-05iTEC Technologies Ltd.
00-09-06Esteem Networks
00-09-07Chrysalis Development
00-09-08VTech Technology Corp.
00-09-09Telenor Connect A/S
00-09-0ASnedFar Technology Co. Ltd.
00-09-0BMTL Instruments PLC
00-09-0CMayekawa Mfg. Co. Ltd.
00-09-0DLEADER ELECTRONICS CORP.
00-09-0EHelix Technology Inc.
00-09-0FFortinet Inc.
00-09-10Simple Access Inc.
00-09-11Cisco Systems
00-09-12Cisco Systems
00-09-13COMPUTROLS INC. 000914
00-09-15CAS Corp.
00-09-16Listman Home Technologies Inc.
00-09-17WEM Technology Inc
00-09-18SAMSUNG TECHWIN CO. LTD
00-09-19MDS Gateways
00-09-1AMacat Optics & Electronics Co. Ltd.
00-09-1BDigital Generation Inc.
00-09-1CCacheVision Inc
00-09-1DProteam Computer Corporation
00-09-1EFirstech Technology Corp.
00-09-1FA&D Co. Ltd.
00-09-20EpoX COMPUTER CO. LTD.
00-09-21Planmeca Oy
00-09-22Touchless Sensor Technology AG
00-09-23Heaman System Co. Ltd
00-09-24Telebau GmbH
00-09-25VSN Systemen BV
00-09-26YODA COMMUNICATIONS INC.
00-09-27TOYOKEIKI CO. LTD.
00-09-28Telecore Inc
00-09-29Sanyo Industries (UK) Limited
00-09-2AMYTECS Co. Ltd.
00-09-2BiQstor Networks Inc.
00-09-2CHitpoint Inc.
00-09-2DHigh Tech Computer Corp.
00-09-2EB&Tech System Inc.
00-09-2FAkom Technology Corporation
00-09-30AeroConcierge Inc.
00-09-31Future Internet Inc.
00-09-32Omnilux
00-09-33OPTOVALLEY Co. Ltd.
00-09-34Dream-Multimedia-Tv GmbH
00-09-35Sandvine Incorporated
00-09-36Ipetronik GmbH & Co.KG
00-09-37Inventec Appliance Corp
00-09-38Allot Communications
00-09-39ShibaSoku Co. Ltd.
00-09-3AMolex Fiber Optics
00-09-3BHYUNDAI NETWORKS INC.
00-09-3CJacques Technologies P/L
00-09-3DNewisys Inc.
00-09-3EC&I Technologies
00-09-3FDouble-Win Enterpirse CO. LTD
00-09-40AGFEO GmbH & Co. KG
00-09-41Allied Telesis K.K.
00-09-42CRESCO LTD.
00-09-43Cisco Systems
00-09-44Cisco Systems
00-09-45Palmmicro Communications Inc
00-09-46Cluster Labs GmbH
00-09-47Aztek Inc.
00-09-48Vista Control Systems Corp.
00-09-49Glyph Technologies Inc.
00-09-4AHomenet Communications
00-09-4BFillFactory NV
00-09-4CCommunication Weaver Co. Ltd.
00-09-4DBraintree Communications Pty Ltd
00-09-4EBARTECH SYSTEMS INTERNATIONAL INC
00-09-4Felmegt GmbH & Co. KG
00-09-50Independent Storage Corporation
00-09-51Apogee Instruments Inc
00-09-52Auerswald GmbH & Co. KG
00-09-53Linkage System Integration Co.Ltd.
00-09-54AMiT spol. s. r. o.
00-09-55Young Generation International Corp.
00-09-56Network Systems Group Ltd. (NSG)
00-09-57Supercaller Inc.
00-09-58INTELNET S.A.
00-09-59Sitecsoft
00-09-5ARACEWOOD TECHNOLOGY
00-09-5BNetgear Inc.
00-09-5CPhilips Medical Systems - Cardiac and Monitoring Systems (CM
00-09-5DDialogue Technology Corp.
00-09-5EMasstech Group Inc.
00-09-5FTelebyte Inc.
00-09-60YOZAN Inc.
00-09-61Switchgear and Instrumentation Ltd
00-09-62Filetrac AS
00-09-63Dominion Lasercom Inc.
00-09-64Hi-Techniques
00-09-65Thales Navigation 000966
00-09-67Tachyon Inc
00-09-68TECHNOVENTURE INC.
00-09-69Meret Optical Communications
00-09-6ACloverleaf Communications Inc.
00-09-6BIBM Corporation
00-09-6CImedia Semiconductor Corp.
00-09-6DPowernet Technologies Corp.
00-09-6EGIANT ELECTRONICS LTD.
00-09-6FBeijing Zhongqing Elegant Tech. Corp. Limited
00-09-70Vibration Research Corporation
00-09-71Time Management Inc.
00-09-72Securebase Inc
00-09-73Lenten Technology Co. Ltd.
00-09-74Innopia Technologies Inc.
00-09-75fSONA Communications Corporation
00-09-76Datasoft ISDN Systems GmbH
00-09-77Brunner Elektronik AG
00-09-78AIJI System Co. Ltd.
00-09-79Advanced Television Systems Committee Inc.
00-09-7ALouis Design Labs.
00-09-7BCisco Systems
00-09-7CCisco Systems
00-09-7DSecWell Networks Oy
00-09-7EIMI TECHNOLOGY CO. LTD
00-09-7FVsecure 2000 LTD.
00-09-80Power Zenith Inc.
00-09-81Newport Networks
00-09-82Loewe Opta GmbH
00-09-83Gvision Incorporated
00-09-84MyCasa Network Inc.
00-09-85Auto Telecom Company
00-09-86Metalink LTD.
00-09-87NISHI NIPPON ELECTRIC WIRE & CABLE CO. LTD.
00-09-88Nudian Electron Co. Ltd.
00-09-89VividLogic Inc.
00-09-8AEqualLogic Inc
00-09-8BEntropic Communications Inc.
00-09-8CPossio AB
00-09-8DDCT Ltd (Digital Communication Technologies Ltd)
00-09-8Eipcas GmbH
00-09-8FCetacean Networks
00-09-90ACKSYS Communications & systems
00-09-91GE Fanuc Automation Manufacturing Inc.
00-09-92InterEpoch Technology INC.
00-09-93Visteon Corporation
00-09-94Cronyx Engineering
00-09-95Castle Technology Ltd
00-09-96RDI
00-09-97Nortel Networks
00-09-98Capinfo Company Limited
00-09-99CP GEORGES RENAULT
00-09-9AELMO COMPANY LIMITED
00-09-9BWestern Telematic Inc.
00-09-9CNaval Research Laboratory
00-09-9DHaliplex Communications
00-09-9ETestech Inc.
00-09-9FVIDEX INC.
00-09-A0Microtechno Corporation
00-09-A1Telewise Communications Inc.
00-09-A2Interface Co. Ltd.
00-09-A3Leadfly Techologies Corp. Ltd.
00-09-A4HARTEC Corporation
00-09-A5HANSUNG ELETRONIC INDUSTRIES DEVELOPMENT CO. LTD
00-09-A6Ignis Optics Inc.
00-09-A7Bang & Olufsen A/S
00-09-A8Eastmode Pte Ltd
00-09-A9Ikanos Communications
00-09-AAData Comm for Business Inc.
00-09-ABNetcontrol Oy
00-09-ACLANVOICE
00-09-ADHYUNDAI SYSCOMM INC.
00-09-AEOKANO ELECTRIC CO. LTD
00-09-AFe-generis
00-09-B0Onkyo Corporation
00-09-B1Kanematsu Electronics Ltd.
00-09-B2L&F Inc.
00-09-B3MCM Systems Ltd
00-09-B4KISAN TELECOM CO. LTD.
00-09-B53J Tech. Co. Ltd.
00-09-B6Cisco Systems
00-09-B7Cisco Systems
00-09-B8Entise Systems
00-09-B9Action Imaging Solutions
00-09-BAMAKU Informationstechik GmbH
00-09-BBMathStar Inc.
00-09-BCDigital Safety Technologies Inc.
00-09-BDEpygi Technologies Ltd.
00-09-BEMamiya-OP Co. Ltd.
00-09-BFNintendo Co. Ltd.
00-09-C06WIND
00-09-C1PROCES-DATA A/S
00-09-C2NETAS 0009C3
00-09-C4Medicore Co. Ltd
00-09-C5KINGENE Technology Corporation
00-09-C6Visionics Corporation
00-09-C7Movistec
00-09-C8SINAGAWA TSUSHIN KEISOU SERVICE
00-09-C9BlueWINC Co. Ltd.
00-09-CAiMaxNetworks(Shenzhen)Limited.
00-09-CBHBrain
00-09-CCMoog GmbH
00-09-CDHUDSON SOFT CO. LTD.
00-09-CESpaceBridge Semiconductor Corp.
00-09-CFiAd GmbH
00-09-D0Versatel Networks
00-09-D1SERANOA NETWORKS INC
00-09-D2Mai Logic Inc.
00-09-D3Western DataCom Co. Inc.
00-09-D4Transtech Networks
00-09-D5Signal Communication Inc.
00-09-D6KNC One GmbH
00-09-D7DC Security Products
00-09-D8Neoscale Systems Inc 0009D9
00-09-DAControl Module Inc.
00-09-DBeSpace
00-09-DCGalaxis Technology AG
00-09-DDMavin Technology Inc.
00-09-DESamjin Information & Communications Co. Ltd.
00-09-DFVestel Komunikasyon Sanayi ve Ticaret A.S.
00-09-E0XEMICS S.A.
00-09-E1Gemtek Technology Co. Ltd.
00-09-E2Sinbon Electronics Co. Ltd.
00-09-E3Angel Iglesias S.A.
00-09-E4K Tech Infosystem Inc.
00-09-E5Hottinger Baldwin Messtechnik GmbH
00-09-E6Cyber Switching Inc.
00-09-E7ADC Techonology
00-09-E8Cisco Systems
00-09-E9Cisco Systems
00-09-EAYEM Inc.
00-09-EBHuMANDATA LTD.
00-09-ECDaktronics Inc.
00-09-EDCipherOptics
00-09-EEMEIKYO ELECTRIC CO. LTD
00-09-EFVocera Communications
00-09-F0Shimizu Technology Inc.
00-09-F1Yamaki Electric Corporation
00-09-F2Cohu Inc. Electronics Division
00-09-F3WELL Communication Corp.
00-09-F4Alcon Laboratories Inc.
00-09-F5Emerson Network Power Co. Ltd
00-09-F6Shenzhen Eastern Digital Tech Ltd.
00-09-F7SED a division of Calian
00-09-F8UNIMO TECHNOLOGY CO. LTD.
00-09-F9ART JAPAN CO. LTD.
00-09-FBPhilips Medizinsysteme Boeblingen GmbH
00-09-FCIPFLEX Inc.
00-09-FDUbinetics Limited
00-09-FEDaisy Technologies Inc.
00-09-FFX.net 2000 GmbH
00-0A-00Mediatek Corp.
00-0A-01SOHOware Inc.
00-0A-02ANNSO CO. LTD.
00-0A-03ENDESA SERVICIOS S.L.
00-0A-043Com Europe Ltd
00-0A-05Widax Corp.
00-0A-06Teledex LLC
00-0A-07WebWayOne Ltd


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