macadress

Vendor directory

17,372 blocks registered in United States.

Page 133 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
🇺🇸 QSC LLC 00:60:74:00:00:00 /24 MA-L 🇺🇸 QSI Corporation 00:03:B6:00:00:00 /24 MA-L 🇺🇸 QSI Systems Inc. 00:0A:2A:00:00:00 /24 MA-L 🇺🇸 QSR Automations, Inc. 80:D7:33:00:00:00 /24 MA-L 🇺🇸 Qstreams Networks Inc. 00:50:C2:63:90:00 /36 IAB 🇺🇸 QT medical inc 20:B3:7F:30:00:00 /28 MA-M 🇺🇸 QUAD/GRAPHICS, INC. 00:C0:C1:00:00:00 /24 MA-L 🇺🇸 QUADRAM CORP. 00:00:E0:00:00:00 /24 MA-L 🇺🇸 Quaesta Instruments, LLC 70:B3:D5:88:F0:00 /36 MA-S 🇺🇸 Quake Global Inc 4C:BC:98:20:00:00 /28 MA-M 🇺🇸 Quake Technologies 00:08:97:00:00:00 /24 MA-L 🇺🇸 Qualcomm Inc. 00:A0:C6:00:00:00 /24 MA-L 🇺🇸 Qualcomm Inc. 64:9C:81:00:00:00 /24 MA-L 🇺🇸 Qualcomm Inc. 88:12:4E:00:00:00 /24 MA-L 🇺🇸 Qualcomm Inc. 8C:FD:F0:00:00:00 /24 MA-L 🇺🇸 QUALCOMM Incorporated A0:BD:71:00:00:00 /24 MA-L 🇺🇸 Qualitel Corporation 8C:1F:64:95:B0:00 /36 MA-S 🇺🇸 Qualitrol LLC 8C:1F:64:2E:E0:00 /36 MA-S 🇺🇸 Qualitrol LLC 8C:1F:64:90:50:00 /36 MA-S 🇺🇸 QUALITY SEMICONDUCTOR 00:60:51:00:00:00 /24 MA-L 🇺🇸 Qualnetics Corporation 00:50:C2:C2:40:00 /36 IAB 🇺🇸 Qualstar Corporation 00:08:4F:00:00:00 /24 MA-L 🇺🇸 Qualynxus Inc 28:B3:AF:00:00:00 /24 MA-L 🇺🇸 Quanergy Solutions Inc D4:C9:B2:00:00:00 /24 MA-L 🇺🇸 Quantel USA, Inc. 80:7B:85:40:00:00 /28 MA-M 🇺🇸 Quantenna Communcations, Inc. 00:26:86:00:00:00 /24 MA-L 🇺🇸 Quantlab Financial, LLC A0:C5:F2:00:00:00 /28 MA-M 🇺🇸 Quantronix, Inc. 60:D7:E3:D0:00:00 /28 MA-M 🇺🇸 Quantronix, Inc. 00:50:C2:17:10:00 /36 IAB 🇺🇸 Quantronix, Inc. 40:D8:55:0A:00:00 /36 IAB 🇺🇸 QUANTUM BRIDGE COMMUNICATIONS 00:30:2D:00:00:00 /24 MA-L 🇺🇸 Quantum Corp. 00:0E:A4:00:00:00 /24 MA-L 🇺🇸 Quantum Corp. 00:50:84:00:00:00 /24 MA-L 🇺🇸 Quantum Corporation 00:30:8C:00:00:00 /24 MA-L 🇺🇸 Quantum Corporation 00:E0:9E:00:00:00 /24 MA-L 🇺🇸 Quantum Data Inc. 00:07:AA:00:00:00 /24 MA-L 🇺🇸 Quantum Design Inc. 70:B3:D5:84:D0:00 /36 MA-S 🇺🇸 Quantum Media Systems 8C:1F:64:F6:30:00 /36 MA-S 🇺🇸 Quantum Medical Imaging 00:50:C2:7A:50:00 /36 IAB 🇺🇸 Quantum Opus, LLC 70:B3:D5:60:20:00 /36 MA-S 🇺🇸 Quantum Technologies Inc 8C:1F:64:F2:F0:00 /36 MA-S 🇺🇸 Quantum Technology Sciences, Inc. 00:1B:C5:00:C0:00 /36 MA-S 🇺🇸 Quantum3D, Inc. 00:50:C2:4C:30:00 /36 IAB 🇺🇸 Quantum3D, Inc. 00:50:C2:A8:F0:00 /36 IAB 🇺🇸 QuantumVision Corporation 00:1D:2F:00:00:00 /24 MA-L 🇺🇸 Quarion Technology Inc 1C:6E:76:00:00:00 /24 MA-L 🇺🇸 Quarry Technologies 00:01:C6:00:00:00 /24 MA-L 🇺🇸 QUARTECH CORPORATION 00:50:C2:B7:B0:00 /36 IAB 🇺🇸 Quartet Technology, Inc. 00:50:C2:49:80:00 /36 IAB 🇺🇸 Quartics Inc 00:1C:FE:00:00:00 /24 MA-L 🇺🇸 Quasar Technologies, Inc. 00:25:40:00:00:00 /24 MA-L 🇺🇸 Quasonix 4C:6E:44:00:00:00 /28 MA-M 🇺🇸 Quasonix, LLC 70:B3:D5:23:C0:00 /36 MA-S 🇺🇸 Quatech Inc. 00:0B:28:00:00:00 /24 MA-L 🇺🇸 Quest Controls, Inc. 3C:98:BF:00:00:00 /24 MA-L 🇺🇸 QUEST ENGINEERING & DEVELOPMENT 00:60:E2:00:00:00 /24 MA-L 🇺🇸 Quest Integrity 1C:87:74:E0:00:00 /28 MA-M 🇺🇸 QuEST Rail LLC 1C:AE:3E:C0:00:00 /28 MA-M 🇺🇸 Quest Software, Inc. D8:DF:7A:00:00:00 /24 MA-L 🇺🇸 Quest Technical Solutions Inc. 00:0C:1A:00:00:00 /24 MA-L 🇺🇸 Quest Technologies 00:11:A8:00:00:00 /24 MA-L 🇺🇸 Quext, LLC 74:09:AC:00:00:00 /24 MA-L 🇺🇸 Quicklert Inc EC:5B:CD:C0:00:00 /28 MA-M 🇺🇸 Quickset Defense Technologies, LLC 38:A8:51:00:00:00 /24 MA-L 🇺🇸 Quickware Eng & Des LLC 70:B3:D5:80:F0:00 /36 MA-S 🇺🇸 Quidel Corporation 78:D4:F1:D0:00:00 /28 MA-M 🇺🇸 Quilt Systems, Inc C8:98:DB:D0:00:00 /28 MA-M 🇺🇸 QUINTAR COMPANY 00:C0:35:00:00:00 /24 MA-L 🇺🇸 Quintic Corp. 08:7C:BE:00:00:00 /24 MA-L 🇺🇸 QUINTRON SYSTEMS INC. 00:13:3C:00:00:00 /24 MA-L 🇺🇸 Quirky, Inc. 7C:E5:24:00:00:00 /24 MA-L 🇺🇸 QUME CORPORATION 00:40:7C:00:00:00 /24 MA-L 🇺🇸 Qumranet Inc. 00:1A:4A:00:00:00 /24 MA-L 🇺🇸 QUOTRON SYSTEMS INC. 00:00:F9:00:00:00 /24 MA-L 🇺🇸 QuVis, Inc. 00:60:FF:00:00:00 /24 MA-L 🇺🇸 QVidium Technologies, Inc. 00:26:93:00:00:00 /24 MA-L 🇺🇸 Qvis Labs, LLC 18:D9:49:00:00:00 /24 MA-L 🇺🇸 Qwave Inc 70:B3:D5:B3:10:00 /36 MA-S 🇺🇸 QWES. COM, INC. 00:D0:18:00:00:00 /24 MA-L 🇺🇸 R Cubed Engineering, LLC 70:B3:D5:C5:90:00 /36 MA-S 🇺🇸 R F Micro Devices 00:50:C2:0B:20:00 /36 IAB 🇺🇸 R L Drake F0:3F:F8:00:00:00 /24 MA-L 🇺🇸 R. L. Drake Company 00:50:C2:5C:10:00 /36 IAB 🇺🇸 R.C. Systems Inc 70:B3:D5:52:F0:00 /36 MA-S 🇺🇸 R2Sonic, LLC 00:50:C2:90:40:00 /36 IAB 🇺🇸 R2Sonic, LLC 8C:1F:64:25:E0:00 /36 MA-S 🇺🇸 RAB Lighting 78:1F:11:00:00:00 /24 MA-L 🇺🇸 Raba Technologies LLC 00:18:C4:00:00:00 /24 MA-L 🇺🇸 Racal Instruments 00:0D:2B:00:00:00 /24 MA-L 🇺🇸 RACAL-DATACOM 00:07:01:00:00:00 /24 MA-L 🇺🇸 RACAL-DATACOM 02:07:01:00:00:00 /24 MA-L 🇺🇸 RACAL-DATACOM 02:70:01:00:00:00 /24 MA-L 🇺🇸 RACAL-MILGO INFORMATION SYS.. 08:00:41:00:00:00 /24 MA-L 🇺🇸 Rackable Systems 00:19:40:00:00:00 /24 MA-L 🇺🇸 Rackmaster Systems, Inc. 00:50:C2:30:90:00 /36 IAB 🇺🇸 Rackspace US, Inc. BC:76:4E:00:00:00 /24 MA-L 🇺🇸 RackTop Systems Inc. C4:40:44:00:00:00 /24 MA-L 🇺🇸 RackWare Inc. F8:F0:14:00:00:00 /24 MA-L 🇺🇸 RACORE COMPUTER PRODUCTS INC. 00:00:58:00:00:00 /24 MA-L 🇺🇸 RADAR BC:31:98:E0:00:00 /28 MA-M
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