macadress

Vendor directory

17,372 blocks registered in United States.

Page 125 of 174

Every MA-L, MA-M, MA-S, IAB, and CID block IEEE has ever assigned to a named organization, browsable or searchable.

Unique organizations8,982
Total blocks17,372
MA-L count13,540
MA-M count976
MA-S count1,468
IAB count1,289
CID count99
Total address capacity229,859,151,872
Last changed hereAug 29, 2026

Country reflects the address published in the IEEE registration record. It does not indicate where a device was manufactured, sold, located or currently used.

Largest organizations in United States

OrganizationBlocks
Apple, Inc.1,553
Cisco Systems, Inc1,247
IEEE Registration Authority436
Texas Instruments392
Commscope345
Juniper Networks209
Amazon Technologies Inc.204
Dell Inc.184
Hewlett Packard Enterprise176
Silicon Laboratories154
Organization Prefix Type
🇺🇸 OPTIVISION, INC. 00:90:AC:00:00:00 /24 MA-L 🇺🇸 OPTO-22 00:A0:3D:00:00:00 /24 MA-L 🇺🇸 Optranet, Inc. 00:03:1E:00:00:00 /24 MA-L 🇺🇸 OPTRONICS 00:50:A6:00:00:00 /24 MA-L 🇺🇸 OptXCon, Inc. 00:04:BE:00:00:00 /24 MA-L 🇺🇸 OPUS SYSTEMS 00:80:F1:00:00:00 /24 MA-L 🇺🇸 Opus Telecom Inc. 00:50:C2:00:D0:00 /36 IAB 🇺🇸 Opus-Two ICS 8C:1F:64:1D:30:00 /36 MA-S 🇺🇸 OpVista 00:50:C2:29:60:00 /36 IAB 🇺🇸 OpVista, Inc. 00:1A:06:00:00:00 /24 MA-L 🇺🇸 OPW Fuel Management Systems 00:18:C6:00:00:00 /24 MA-L 🇺🇸 OQO, Inc. 00:0C:96:00:00:00 /24 MA-L 🇺🇸 Oracle 00:00:17:00:00:00 /24 MA-L 🇺🇸 Oracle Corporation 00:00:7D:00:00:00 /24 MA-L 🇺🇸 Oracle Corporation 00:01:5D:00:00:00 /24 MA-L 🇺🇸 Oracle Corporation 00:03:BA:00:00:00 /24 MA-L 🇺🇸 Oracle Corporation 00:07:82:00:00:00 /24 MA-L 🇺🇸 Oracle Corporation 00:0F:4B:00:00:00 /24 MA-L 🇺🇸 Oracle Corporation 00:10:4F:00:00:00 /24 MA-L 🇺🇸 Oracle Corporation 00:10:E0:00:00:00 /24 MA-L 🇺🇸 Oracle Corporation 00:13:97:00:00:00 /24 MA-L 🇺🇸 Oracle Corporation 00:14:4F:00:00:00 /24 MA-L 🇺🇸 Oracle Corporation 00:20:F2:00:00:00 /24 MA-L 🇺🇸 Oracle Corporation 00:21:28:00:00:00 /24 MA-L 🇺🇸 Oracle Corporation 00:21:F6:00:00:00 /24 MA-L 🇺🇸 Oracle Corporation 00:A0:A4:00:00:00 /24 MA-L 🇺🇸 Oracle Corporation 08:00:20:00:00:00 /24 MA-L 🇺🇸 Oracle Corporation A8:69:8C:00:00:00 /24 MA-L 🇺🇸 ORANGE MICRO, INC. 00:D0:F5:00:00:00 /24 MA-L 🇺🇸 Orange Precision Measurement LLC 8C:1F:64:7E:E0:00 /36 MA-S 🇺🇸 Oraya Therapeutics E4:D7:1D:00:00:00 /24 MA-L 🇺🇸 Orb Networks, Inc. E0:AB:FE:00:00:00 /24 MA-L 🇺🇸 ORBACOM SYSTEMS, INC. 00:30:4B:00:00:00 /24 MA-L 🇺🇸 Orban 00:0E:EC:00:00:00 /24 MA-L 🇺🇸 Orbbec 3D Technology International 54:14:FD:00:00:00 /24 MA-L 🇺🇸 Orbic North America 34:EA:10:00:00:00 /24 MA-L 🇺🇸 Orbic North America D8:D4:5D:00:00:00 /24 MA-L 🇺🇸 ORBIS TECNOLOGIA ELECTRICA S.A. 70:64:17:00:00:00 /24 MA-L 🇺🇸 Orbit International 70:B3:D5:B3:F0:00 /36 MA-S 🇺🇸 Orbit Irrigation 44:67:55:00:00:00 /24 MA-L 🇺🇸 Orbital Data Corporation 00:11:08:00:00:00 /24 MA-L 🇺🇸 Orbital Sciences Corp.; Launch Systems Group 00:0D:99:00:00:00 /24 MA-L 🇺🇸 Orbital Systems, Ltd. 00:1B:C5:04:F0:00 /36 MA-S 🇺🇸 Orbotix, Inc. 68:86:E7:00:00:00 /24 MA-L 🇺🇸 ORCA Technologies, LLC 70:B3:D5:7C:F0:00 /36 MA-S 🇺🇸 Orderite, Inc. 00:50:C2:57:F0:00 /36 IAB 🇺🇸 Orenco Systems, Inc. 00:50:C2:50:00:00 /36 IAB 🇺🇸 ORESIS COMMUNICATIONS, INC. 00:D0:AE:00:00:00 /24 MA-L 🇺🇸 Orient Direct, Inc. 54:9A:11:60:00:00 /28 MA-M 🇺🇸 Orient Silver Enterprises 00:01:76:00:00:00 /24 MA-L 🇺🇸 Origin Acoustics, LLC F8:75:28:C0:00:00 /28 MA-M 🇺🇸 Orion Labs inc 1C:88:79:E0:00:00 /28 MA-M 🇺🇸 Orion MultiSystems Inc 00:0F:8B:00:00:00 /24 MA-L 🇺🇸 Orion Power Systems, Inc. FC:A2:DF:E0:00:00 /28 MA-M 🇺🇸 Orion Power Systems, Inc. 70:B3:D5:11:00:00 /36 MA-S 🇺🇸 Orion Power Systems, Inc. 8C:1F:64:03:B0:00 /36 MA-S 🇺🇸 Orion Systems, Inc 40:D8:55:1B:80:00 /36 IAB 🇺🇸 Orion Technologies, LLC 70:B3:D5:C6:E0:00 /36 MA-S 🇺🇸 Orion Technologies,LLC 00:50:C2:28:B0:00 /36 IAB 🇺🇸 Orion Technologies,LLC 00:50:C2:53:10:00 /36 IAB 🇺🇸 Orion Technologies,LLC 00:50:C2:AC:40:00 /36 IAB 🇺🇸 Oriux 8C:1F:64:20:A0:00 /36 MA-S 🇺🇸 Oriux 8C:1F:64:24:60:00 /36 MA-S 🇺🇸 Oriux 8C:1F:64:27:B0:00 /36 MA-S 🇺🇸 Oriux 8C:1F:64:3B:D0:00 /36 MA-S 🇺🇸 Oriux 8C:1F:64:C6:70:00 /36 MA-S 🇺🇸 ORMEC SYSTEMS CORP. 00:D0:34:00:00:00 /24 MA-L 🇺🇸 Osborne Coinage Co 00:1B:C5:03:20:00 /36 MA-S 🇺🇸 oshkosh Corporation 80:84:A9:00:00:00 /24 MA-L 🇺🇸 Oshoksh Corporation 00:50:C2:E3:20:00 /36 IAB 🇺🇸 OSI Security Devices 00:14:F5:00:00:00 /24 MA-L 🇺🇸 Ositis Software, Inc. 00:07:A3:00:00:00 /24 MA-L 🇺🇸 Osmetech Inc. 00:50:C2:3D:B0:00 /36 IAB 🇺🇸 OSNexus DA:1E:56:00:00:00 /24 CID 🇺🇸 Oso Technologies 70:B3:D5:87:10:00 /36 MA-S 🇺🇸 Oso Technologies, Inc. 70:B3:D5:4D:E0:00 /36 MA-S 🇺🇸 OSOM Products Inc 94:C9:B7:80:00:00 /28 MA-M 🇺🇸 OSPREY TECHNOLOGIES, INC. 00:90:94:00:00:00 /24 MA-L 🇺🇸 Osprey Video, Inc C0:9B:F4:30:00:00 /28 MA-M 🇺🇸 Ossia Inc CA:04:5A:00:00:00 /24 CID 🇺🇸 Ossia Inc 8C:1F:64:1B:F0:00 /36 MA-S 🇺🇸 Osterhout Design Group 80:A8:5D:00:00:00 /24 MA-L 🇺🇸 OTC Wireless 00:03:DE:00:00:00 /24 MA-L 🇺🇸 OTIS ELEVATOR COMPANY 00:D0:85:00:00:00 /24 MA-L 🇺🇸 OttoQ 44:44:50:00:00:00 /24 MA-L 🇺🇸 Ouster BC:0F:A7:00:00:00 /24 MA-L 🇺🇸 Out of the Fog Research LLC E8:2E:24:00:00:00 /24 MA-L 🇺🇸 OutdoorLink 70:B3:D5:6A:30:00 /36 MA-S 🇺🇸 OutdoorLink 8C:1F:64:33:40:00 /36 MA-S 🇺🇸 OuterLink Corporation 68:85:6A:00:00:00 /24 MA-L 🇺🇸 OUTFORM 38:A8:CD:E0:00:00 /28 MA-M 🇺🇸 Ouya, Inc B8:5A:F7:00:00:00 /24 MA-L 🇺🇸 Overland Storage Inc. 00:90:0D:00:00:00 /24 MA-L 🇺🇸 Overture Networks 00:05:7A:00:00:00 /24 MA-L 🇺🇸 Overture Networks, Inc. 00:07:C1:00:00:00 /24 MA-L 🇺🇸 Overture Networks. 00:0A:C6:00:00:00 /24 MA-L 🇺🇸 Oviss Labs Inc. FC:D2:B6:80:00:00 /28 MA-M 🇺🇸 Owl Cyber Defense Solutions, LLC 5C:90:12:00:00:00 /24 MA-L 🇺🇸 Owl Cyber Defense Solutions, LLC 40:D8:55:1D:80:00 /36 IAB 🇺🇸 Owl Home Inc. F8:EC:FE:00:00:00 /24 MA-L
← Previous Page 125 of 174 Next →