| OUI 前缀 | 厂商 | 全称 |
|---|---|---|
| 78:C2:C0:4/28 | OryLaborator | Ory Laboratory Co., Ltd. |
| 00:26:D5/24 | OrySolucoese | Ory Solucoes em Comercio de Informatica Ltda. |
| 70:B3:D5:9D:1/36 | OS42UG | OS42 UG (haftungsbeschraenkt) |
| 00:E0:94/24 | Osai | Osai Srl |
| 00:20:6A/24 | OsakaCompute | Osaka Computer Corp. |
| 00:0E:D1/24 | OsakaMicroCo | Osaka Micro Computer. |
| 70:B3:D5:A0:F/36 | OsakiDatatec | Osaki Datatech Co., Ltd. |
| 00:04:01/24 | OsakiElectri | Osaki Electric Co., Ltd. |
| C0:AA:68/24 | OSASITechnos | OSASI Technos Inc. |
| A0:19:B2:4/28 | Osatec | Osatec |
| 00:1B:C5:03:2/36 | OsborneCoina | Osborne Coinage Co |
| C8:F5:D6:7/28 | OscarsPro | Oscars Pro |
| 00:01:20/24 | Oscilloquart | Oscilloquartz S.A. |
| 8C:1F:64:8E:F/36 | Osec | Osec |
| C8:6B:BC:9/28 | OseeTechnolo | Osee Technology LTD. |
| 00:50:C2:EE:0/36 | osfHansjuerg | osf Hansjuergen Meier GmbH & Co. KG |
| 00:50:C2:21:4/36 | OshimiSystem | Oshimi System Design Inc. |
| 80:84:A9/24 | oshkosh | oshkosh Corporation |
| 00:50:C2:E3:2/36 | Oshoksh | Oshoksh Corporation |
| 00:C0:6B/24 | OsiPlus | Osi Plus Corporation |
| 00:14:F5/24 | OSISecurityD | OSI Security Devices |
| 00:C0:E3/24 | OsitechCommu | Ositech Communications, Inc. |
| 60:15:92:3/28 | OsiTechnolog | Osi Technology Co.,Ltd. |
| 00:07:A3/24 | OsitisSoftwa | Ositis Software, Inc. |
| 00:D0:A1/24 | OskarVierlin | Oskar Vierling Gmbh + Co. Kg |
| 00:15:D6/24 | OSLiNKSp | OSLiNK Sp. z o.o. |
| 00:50:C2:3D:B/36 | Osmetech | Osmetech Inc. |
| 40:B8:C2/24 | Osmozis | Osmozis |
| 70:B3:D5:A9:B/36 | Osmozis | Osmozis |
| DA:1E:56/24 | OSNexus | OSNexus |
| 40:D8:55:02:3/36 | osolutionele | Shanghai o-solution electronics & Technology Co., Ltd. |
| 94:C9:B7:8/28 | OSOMProducts | OSOM Products Inc |
| 9C:A5:77/24 | OsornoEnterp | Osorno Enterprises Inc. |
| 70:B3:D5:87:1/36 | OsoTechnolog | Oso Technologies |
| 70:B3:D5:4D:E/36 | OsoTechnolog | Oso Technologies, Inc. |
| 1C:C0:E1:9/28 | Ospicon | Ospicon Company Limited |
| 00:90:94/24 | OspreyTechno | Osprey Technologies, Inc. |
| C0:9B:F4:3/28 | OspreyVideo | Osprey Video, Inc |
| 84:18:26/24 | Osram | Osram GmbH |
| 70:B3:D5:AB:0/36 | OsrR&DIsrael | Osr R&D Israel Ltd |
| 8C:1F:64:1B:F/36 | Ossia | Ossia Inc |
| CA:04:5A/24 | Ossia | Ossia Inc |
| 70:B3:D5:CB:0/36 | Ossiaco | Ossiaco |
| 30:21:5B/24 | OstarDisplay | Shenzhen Ostar Display Electronic Co.,Ltd |
| 80:A8:5D/24 | OsterhoutDes | Osterhout Design Group |
| 00:20:D3/24 | OstOuestStan | Ost (Ouest Standard Telematiqu |
| 70:B3:D5:B6:4/36 | OsungLst | Osung Lst Co.,Ltd. |
| 00:17:02/24 | OsungMidicom | Osung Midicom Co., Ltd |
| 5C:24:43/24 | OSungTelecom | O-Sung Telecom Co., Ltd. |
| 80:34:57/24 | OT | OT Systems Limited |
| 00:50:C2:EB:2/36 | OtakiElectri | Otaki Electric Corporation |
| 00:06:01/24 | Otanikeiki | Otanikeiki Co., Ltd. |
| 00:05:42/24 | Otari | Otari, Inc. |
| 00:03:DE/24 | OTCWireless | OTC Wireless |
| 00:15:35/24 | OTE | OTE Spa |
| 98:FF:6A/24 | OTECTechnolo | OTEC(Shanghai)Technology Co.,Ltd. |
| 70:B3:D5:76:F/36 | Oti | Oti Ltd |
| 00:D0:85/24 | OtisElevator | Otis Elevator Company |
| 8C:1F:64:79:1/36 | OtisTechnolo | Otis Technology and Development(Shanghai) Co., Ltd. |
| 8C:1F:64:7A:6/36 | OTMetric | OTMetric |
| 38:9F:83/24 | OTN | OTN Systems N.V. |
| F0:22:1D:E/28 | oToBriteElec | oToBrite Electronics, Inc. |
| 8C:1F:64:B4:D/36 | Otodo | Otodo |
| 20:B3:7F:4/28 | Otp | Otp Co.,Ltd. |
| 00:0A:EF/24 | OtrumAsa | Otrum Asa |
| 9C:FF:BE/24 | OTSL | OTSL Inc. |
| 00:16:12/24 | OtsukaElectr | Otsuka Electronics Co., Ltd. |
| E4:41:E6/24 | OttecTechnol | Ottec Technology GmbH |
| 70:B3:D5:6B:F/36 | OttoBihlerMa | Otto Bihler Maschinenfabrik GmbH & Co. KG |
| 60:6D:9D/24 | OttoBockHeal | Otto Bock Healthcare Products GmbH |
| E4:4C:C7:9/28 | OttomateInte | Ottomate International Pvt. Ltd. |
| 44:44:50/24 | OttoQ | OttoQ |
| 8C:1F:64:F1:1/36 | Ottronic | Ottronic GmbH |
| 6C:8C:DB/24 | OtusTechnolo | Otus Technologies Ltd |
| 00:13:91/24 | Ouen | Ouen Co.,Ltd. |
| 00:08:88/24 | OULLIMInform | OULLIM Information Technology Inc,. |
| 00:22:A8/24 | Ouman | Ouman Oy |
| 8C:AE:49:0/28 | Ouman | Ouman Oy |
| 48:E6:C6:0/28 | OumeihuaTech | Shenzhen Oumeihua Technology Co.,Ltd |
| A0:38:F8/24 | OURAHealth | OURA Health Oy |
| BC:0F:A7/24 | Ouster | Ouster |
| 8C:1F:64:33:4/36 | OutdoorLink | OutdoorLink |
| 70:B3:D5:6A:3/36 | OutdoorLink | OutdoorLink |
| 68:85:6A/24 | OuterLink | OuterLink Corporation |
| E8:2E:24/24 | OutFogResear | Out of the Fog Research LLC |
| 38:A8:CD:E/28 | Outform | Outform |
| 00:50:C2:AA:E/36 | OUTLINE | OUTLINE srl |
| 00:0D:4C/24 | OutlineElect | Outline Electronics Ltd. |
| 4C:E1:73:3/28 | outpaceIO | outpaceIO |
| 70:B3:D5:3E:C/36 | Outsight | Outsight SA |
| 28:4E:D7/24 | OutSmartPowe | OutSmart Power Systems, Inc. |
| 68:91:D0:E/28 | OutstandingT | Outstanding Technology Co., Ltd. |
| 70:B3:D5:92:9/36 | OutSys | OutSys |
| D0:7F:C4/24 | OuWeiTechnol | Ou Wei Technology Co.，Ltd. of Shenzhen City |
| B8:5A:F7/24 | Ouya | Ouya, Inc |
| AC:1D:DF:5/28 | OuzhengElect | Shenzhen Ouzheng Electronic Tech Co,.Ltd |
| 00:A0:72/24 | Ovation | Ovation Systems Ltd. |
| 8C:1F:64:70:E/36 | OvercomTech | OvercomTech |
| F8:81:1A/24 | Overkiz | Overkiz |
| 00:90:0D/24 | OverlandStor | Overland Storage Inc. |