58,498 registered blocks.

🇺🇸 Oakley Inc. A4:68:BC:00:00:00 /24 MA-L 🇷🇺 OAO "Izhevskiy radiozavod" 00:B0:33:00:00:00 /24 MA-L 🇩🇪 OAS AG 8C:1F:64:70:70:00 /36 MA-S 🇸🇪 OAS Sweden AB 70:B3:D5:34:70:00 /36 MA-S 🇺🇸 Oasis Media Systems LLC C8:A2:CE:00:00:00 /24 MA-L 🇨🇳 OB Telecom Electronic Technology Co., Ltd 0C:A4:2A:00:00:00 /24 MA-L 🇰🇷 OBARA KOREA DC:63:73:00:00:00 /24 MA-L 🇺🇸 Obelisk Inc. CC:D3:9D:80:00:00 /28 MA-M 🇫🇮 Obelux Oy 08:75:72:00:00:00 /24 MA-L 🇦🇺 Oberix Group Pty Ltd FC:A4:7A:90:00:00 /28 MA-M 🇨🇭 Oberon microsystems, Inc. 00:1B:C5:08:50:00 /36 MA-S 🇮🇹 Oberon Service srl 00:50:C2:57:10:00 /36 IAB 🇺🇸 Obihai Technology, Inc. 9C:AD:EF:00:00:00 /24 MA-L 🇩🇪 ObjectFab GmbH 40:D8:55:12:00:00 /36 IAB 🇺🇸 OBJECTIVE COMMUNICATIONS, INC. 00:10:31:00:00:00 /24 MA-L 🇺🇸 Objective Interface Systems, Inc. 00:23:44:00:00:00 /24 MA-L 🇫🇷 Objenious 7C:A9:7D:00:00:00 /24 MA-L 🇪🇸 Objetivos y Servicio de Valor Añadido 68:F9:56:00:00:00 /24 MA-L 🇪🇸 Objetivos y Servicios de Valor A E4:C1:46:00:00:00 /24 MA-L 🇪🇸 Objetivos y Sevicios de Valor Añadido D8:61:94:00:00:00 /24 MA-L 🇺🇸 OBO Pro.2 Inc. 8C:59:3C:70:00:00 /28 MA-M 🇺🇸 OBR Centrum Techniki Morskiej S.A. 00:25:FD:00:00:00 /24 MA-L 🇺🇸 Observable Space 8C:1F:64:B9:60:00 /36 MA-S 🇺🇸 Observables, Inc. 04:71:4B:A0:00:00 /28 MA-M 🇧🇲 Observator instruments 0C:39:56:00:00:00 /24 MA-L 🇪🇪 OBSERVER FOUNDATION 70:B3:D5:63:30:00 /36 MA-S 🇺🇸 Observint Technologies, Inc. 50:DC:D0:00:00:00 /24 MA-L 🇺🇸 Observint Technologies, Inc. 64:25:5E:00:00:00 /24 MA-L 🇨🇦 Obsidian Research Corporation 00:17:77:00:00:00 /24 MA-L 🇨🇦 Obzerv Technologies 00:0F:63:00:00:00 /24 MA-L 🇺🇸 OCA Alliance, Inc. FA:2E:E9:00:00:00 /24 CID 🇨🇳 Ocamar Technologies (Shanghai) Co.,Ltd. E0:3C:1C:90:00:00 /28 MA-M 🇬🇧 Ocarina 8C:1F:64:6A:10:00 /36 MA-S 🇳🇴 OCAS AS 00:50:C2:C8:B0:00 /36 IAB 🇺🇸 Occam Networks 00:02:86:00:00:00 /24 MA-L 🇫🇷 OCCITALINE FA:4C:77:00:00:00 /24 CID 🇺🇸 Occuspace 04:D9:21:00:00:00 /24 MA-L 🇩🇪 OCE PRINTING SYSTEMS, GMBH 00:20:84:00:00:00 /24 MA-L 🇫🇷 OCEAN 70:B3:D5:16:C0:00 /36 MA-S 🇺🇸 Ocean Broadband Networks 00:13:09:00:00:00 /24 MA-L 🇭🇰 OCEAN OFFICE AUTOMATION LTD. 00:40:D8:00:00:00 /24 MA-L 🇺🇸 Ocean Optics, Inc. 00:19:8D:00:00:00 /24 MA-L 🇯🇵 Ocean Solution Technology DC:F1:44:00:00:00 /24 MA-L 🇨🇦 Ocean Sonics 00:50:C2:DF:20:00 /36 IAB 🇭🇰 Oceanblue Cloud Technology Limited 5C:B1:5F:00:00:00 /24 MA-L 🇹🇼 OCEANCCTV LTD 50:DE:19:60:00:00 /28 MA-M 🇹🇼 OCEANCCTV LTD 70:B3:D5:FD:50:00 /36 MA-S 🇺🇸 OCEANIX INC. 70:B3:D5:1A:90:00 /36 MA-S 🇰🇷 Oceansbio 58:76:07:70:00:00 /28 MA-M 🇺🇸 OceanServer Technology, Inc B8:9A:ED:00:00:00 /24 MA-L 🇫🇷 OCEASOFT SAS 3C:DC:03:80:00:00 /28 MA-M 🇮🇹 OCEM Energy Technology D0:A0:11:60:00:00 /28 MA-M 🇸🇪 Ochno AB BC:DF:E1:40:00:00 /28 MA-M 🇸🇪 Ochno AB 70:B3:D5:03:A0:00 /36 MA-S 🇹🇼 Ocom Communications, Inc. CC:50:76:00:00:00 /24 MA-L 🇰🇷 OCOSMOS Co., LTD D4:40:D0:00:00:00 /24 MA-L 🇺🇸 OCP Inc. 00:25:23:00:00:00 /24 MA-L 🇹🇼 OCT Technology Co., Ltd. 74:87:A9:00:00:00 /24 MA-L 🇺🇸 OCTAGON SYSTEMS CORP. 00:20:0B:00:00:00 /24 MA-L 🇺🇸 OCTAGON SYSTEMS CORP. FC:95:6A:00:00:00 /24 MA-L 🇵🇹 Octalix B.V. 00:11:B7:00:00:00 /24 MA-L 🇨🇦 Octasic Inc. 00:0C:90:00:00:00 /24 MA-L 🇺🇸 Octatron, Inc. 00:50:C2:43:10:00 /36 IAB 🇺🇸 Octave Communications 00:0A:24:00:00:00 /24 MA-L 🇺🇸 OCTEL COMMUNICATIONS CORP. 00:20:FB:00:00:00 /24 MA-L 🇩🇪 OctoGate IT Security Systems GmbH 80:C5:01:00:00:00 /24 MA-L 🇩🇪 OctoGate IT Security Systems GmbH 00:1B:C5:03:00:00 /36 MA-S 🇨🇭 Octonion SA 9C:68:5B:00:00:00 /24 MA-L 🇨🇳 Octopod Technology Co. Ltd. 3C:92:DC:00:00:00 /24 MA-L 🇬🇧 Octopus Energy Ltd CC:E7:DE:20:00:00 /28 MA-M 🇮🇹 Octopus IoT srl 70:B3:D5:AD:70:00 /36 MA-S 🇭🇰 Octopus Systems Limited 68:CA:00:00:00:00 /24 MA-L 🇺🇸 octoScope 70:B3:D5:EF:30:00 /36 MA-S 🇺🇸 octoScope, Inc. 2C:27:9E:90:00:00 /28 MA-M 🇺🇸 OCTOTHORPE CORP. 00:BB:01:00:00:00 /24 MA-L 🇺🇸 OCTOTHORPE CORP. 02:BB:01:00:00:00 /24 MA-L 🇹🇼 OCTTEL Communication Co., Ltd. 00:0C:2A:00:00:00 /24 MA-L 🇺🇸 Ocular Networks 00:04:21:00:00:00 /24 MA-L 🇦🇪 OCULI VISION 70:B3:D5:17:E0:00 /36 MA-S 🇺🇸 Oculii 70:B3:D5:B9:60:00 /36 MA-S 🇺🇸 Oculus VR, LLC 2C:26:17:00:00:00 /24 MA-L 🇩🇪 Océ Document Technologies GmbH 00:0D:BA:00:00:00 /24 MA-L 🇰🇷 ODA Technologies AC:CA:8E:00:00:00 /24 MA-L 🇯🇵 ODAWARAKIKI AUTO-MACHINE MFG.CO.,LTD 70:B3:D5:F8:80:00 /36 MA-S 🇺🇸 ODF Optronics, Inc. 00:50:C2:89:70:00 /36 IAB 🇪🇸 Odin Solutions, S.L. - B73845893 48:E6:C6:C0:00:00 /28 MA-M 🇺🇸 Odin TeleSystems Inc 00:50:C2:81:70:00 /36 IAB 🇫🇷 ODIXION 00:50:C2:32:40:00 /36 IAB 🇺🇸 ODrive Robotics 5C:17:15:00:00:00 /24 MA-L 🇰🇷 ODTech Co., Ltd. 8C:1F:64:C3:60:00 /36 MA-S 🇨🇭 Odus Technologies SA 00:50:C2:AF:C0:00 /36 IAB 🇺🇸 ODVA 00:21:6C:00:00:00 /24 MA-L 🇫🇷 Odyssee Systemes SAS 00:50:C2:C8:10:00 /36 IAB 🇫🇷 ODYSSEE-SYSTEMES 8C:1F:64:5E:60:00 /36 MA-S 🇺🇸 Odyssey Robot LLC 0C:BF:B4:70:00:00 /28 MA-M 🇩🇪 Oelmann Elektronik GmbH 00:50:C2:42:E0:00 /36 IAB 🇺🇸 OEM ENGINES 00:40:F5:00:00:00 /24 MA-L 🇺🇸 OEM PRODUCTION INC. 50:A4:D0:90:00:00 /28 MA-M 🇺🇸 OEM Worldwide 00:26:17:00:00:00 /24 MA-L 🇨🇭 Oerlikon Contraves AG 00:50:C2:6C:50:00 /36 IAB