macadress

Vendor directory

17,372 blocks registered in United States.

Page 132 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
🇺🇸 Proficium, LLC EA:8F:96:00:00:00 /24 CID 🇺🇸 Progeny Systems B0:24:F3:00:00:00 /24 MA-L 🇺🇸 Progress Rail Services, Inspection and Information Systems 2C:48:35:00:00:00 /28 MA-M 🇺🇸 Progress Rail Services, Inspection and Information Systems 40:D8:55:15:10:00 /36 IAB 🇺🇸 Progressive Gaming International 00:19:CE:00:00:00 /24 MA-L 🇺🇸 Project Decibel, Inc. 70:B3:D5:64:50:00 /36 MA-S 🇺🇸 Project Management Enterprises, Inc. 00:50:C2:00:60:00 /36 IAB 🇺🇸 PROJECT MONITOR INC B4:17:4D:00:00:00 /24 MA-L 🇺🇸 Projects Unlimited Inc. 70:B3:D5:7C:50:00 /36 MA-S 🇺🇸 Proliphix Inc. 00:11:49:00:00:00 /24 MA-L 🇺🇸 Prologix, LLC. 00:21:69:00:00:00 /24 MA-L 🇺🇸 ProMax Systems, Inc. 00:E0:66:00:00:00 /24 MA-L 🇺🇸 Promess Inc. 70:B3:D5:1D:A0:00 /36 MA-S 🇺🇸 Promess Incorporated 00:50:C2:40:10:00 /36 IAB 🇺🇸 Prometheus Security Group Global, Inc. 58:FC:DB:70:00:00 /28 MA-M 🇺🇸 PROMINET CORPORATION 00:E0:3B:00:00:00 /24 MA-L 🇺🇸 Promixis, LLC 00:1B:C5:03:B0:00 /36 MA-S 🇺🇸 Pronto Networks Inc 00:0C:66:00:00:00 /24 MA-L 🇺🇸 Proprietary Controls Systems Corporation 8C:1F:64:A7:C0:00 /36 MA-S 🇺🇸 ProQuent Systems 00:08:B1:00:00:00 /24 MA-L 🇺🇸 Prosoft Technology, Inc 00:0D:8D:00:00:00 /24 MA-L 🇺🇸 ProStor Systems 00:1C:C6:00:00:00 /24 MA-L 🇺🇸 Proteam Computer Corporation 00:09:1D:00:00:00 /24 MA-L 🇺🇸 Protean Payment A4:4F:29:70:00:00 /28 MA-M 🇺🇸 Protect America, Inc. 40:15:97:00:00:00 /24 MA-L 🇺🇸 Protect Animals with Satellites LLC EC:9A:0C:30:00:00 /28 MA-M 🇺🇸 ProtectedLogic Corporation 00:26:65:00:00:00 /24 MA-L 🇺🇸 Protectli 64:62:66:20:00:00 /28 MA-M 🇺🇸 Protempis, LLC C4:7B:80:00:00:00 /24 MA-L 🇺🇸 PROTEON INC. 00:00:93:00:00:00 /24 MA-L 🇺🇸 Proterra 70:B3:D5:2C:30:00 /36 MA-S 🇺🇸 Proterra, Inc 8C:1F:64:55:20:00 /36 MA-S 🇺🇸 Proteus Digital Health 58:EB:14:00:00:00 /24 MA-L 🇺🇸 Proteus Industries Inc. 00:23:92:00:00:00 /24 MA-L 🇺🇸 Protium Technologies, Inc. 00:50:C2:4A:30:00 /36 IAB 🇺🇸 Protium Technologies, Inc. 70:B3:D5:45:90:00 /36 MA-S 🇺🇸 PROTOCOL TECHNOLOGIES, INC. 00:10:C5:00:00:00 /24 MA-L 🇺🇸 ProTom International 70:B3:D5:99:70:00 /36 MA-S 🇺🇸 PROVCOM LTD D0:96:86:10:00:00 /28 MA-M 🇺🇸 Proventix Systems, Inc. 00:26:C9:00:00:00 /24 MA-L 🇺🇸 Proxense, LLC 00:26:2A:00:00:00 /24 MA-L 🇺🇸 Proxicast 00:1B:39:00:00:00 /24 MA-L 🇺🇸 Proxim Wireless 00:20:A6:00:00:00 /24 MA-L 🇺🇸 Proxim Wireless 04:F5:F4:00:00:00 /24 MA-L 🇺🇸 PROXIMA CORPORATION 00:E0:38:00:00:00 /24 MA-L 🇺🇸 Prozess Technologie 70:B3:D5:B5:C0:00 /36 MA-S 🇺🇸 Prysm Inc C4:16:FA:00:00:00 /24 MA-L 🇺🇸 PS Audio International 00:1F:F6:00:00:00 /24 MA-L 🇺🇸 Psiber Data Systems Inc. 00:25:1A:00:00:00 /24 MA-L 🇺🇸 Psigenics Corporation 00:50:C2:98:90:00 /36 IAB 🇺🇸 PsiKick, Inc. BC:5E:A1:00:00:00 /24 MA-L 🇺🇸 PSITECH, INC. 00:C0:0E:00:00:00 /24 MA-L 🇺🇸 Psync Labs, Inc. B8:4C:87:50:00:00 /28 MA-M 🇺🇸 ptswitch 00:50:C2:57:B0:00 /36 IAB 🇺🇸 Pulcro.io LLC 8C:1F:64:C2:20:00 /36 MA-S 🇺🇸 PULSE ELECTRONICS, INC. 00:20:C0:00:00:00 /24 MA-L 🇺🇸 Pulse-Link Inc 00:04:64:00:00:00 /24 MA-L 🇺🇸 PulseTor LLC 70:B3:D5:A2:50:00 /36 MA-S 🇺🇸 Pulzze Systems, Inc 88:4C:CF:00:00:00 /24 MA-L 🇺🇸 Pure Air Filtration 70:B3:D5:0E:70:00 /36 MA-S 🇺🇸 Purechoice Inc 00:23:3F:00:00:00 /24 MA-L 🇺🇸 PureTech Systems, Inc. 00:17:C0:00:00:00 /24 MA-L 🇺🇸 PureWave Networks 00:1D:8F:00:00:00 /24 MA-L 🇺🇸 PURITAN BENNETT 00:A0:61:00:00:00 /24 MA-L 🇺🇸 PurOptix 00:08:68:00:00:00 /24 MA-L 🇺🇸 Purple Communications, Inc 70:70:4C:00:00:00 /24 MA-L 🇺🇸 PurpleComm, Inc. 00:26:CD:00:00:00 /24 MA-L 🇺🇸 PURVIS Systems Incorporated 00:50:C2:CA:C0:00 /36 IAB 🇺🇸 PushCorp, Inc. 70:B3:D5:74:E0:00 /36 MA-S 🇺🇸 Pycon, Inc. 00:50:C2:12:80:00 /36 IAB 🇺🇸 Pyott-Boone Electronics 00:50:C2:5C:00:00 /36 IAB 🇺🇸 Pyramid Meriden Inc. 00:17:F6:00:00:00 /24 MA-L 🇺🇸 Pyramid Technical Consultants 00:50:C2:97:50:00 /36 IAB 🇺🇸 PYRAMID TECHNOLOGY CORP. 08:00:8B:00:00:00 /24 MA-L 🇺🇸 Q-Branch Labs, Inc. CC:D3:9D:B0:00:00 /28 MA-M 🇺🇸 Q-Free America, Inc. 64:55:63:00:00:00 /24 MA-L 🇺🇸 Q-Free America, Inc. 00:50:C2:81:60:00 /36 IAB 🇺🇸 Q-Lab Corporation 10:BD:55:00:00:00 /24 MA-L 🇺🇸 Q-PAC 48:E6:C6:B0:00:00 /28 MA-M 🇺🇸 QA Cafe B0:75:0C:00:00:00 /24 MA-L 🇺🇸 Qardio, Inc 5C:D6:1F:00:00:00 /24 MA-L 🇺🇸 QEI, Inc. 00:05:A3:00:00:00 /24 MA-L 🇺🇸 Qi Hardware Inc. 10:E2:D5:00:00:00 /24 MA-L 🇺🇸 QinetiQ North America 94:75:6E:00:00:00 /24 MA-L 🇺🇸 Qlinx Technologies 70:B3:D5:EC:90:00 /36 MA-S 🇺🇸 QLogic Corporation 00:0E:1E:00:00:00 /24 MA-L 🇺🇸 QLogic Corporation 00:1B:32:00:00:00 /24 MA-L 🇺🇸 QLogic Corporation 00:24:FF:00:00:00 /24 MA-L 🇺🇸 QLogic Corporation 00:C0:DD:00:00:00 /24 MA-L 🇺🇸 QLogic Corporation 00:E0:8B:00:00:00 /24 MA-L 🇺🇸 QLogic Corporation F4:E9:D4:00:00:00 /24 MA-L 🇺🇸 Qolsys Inc. 18:C1:E2:00:00:00 /24 MA-L 🇺🇸 Qolsys Inc. 3C:31:78:00:00:00 /24 MA-L 🇺🇸 Qorvo, Inc. 0A:93:26:00:00:00 /24 CID 🇺🇸 Qorvo, Inc. 28:36:13:B0:00:00 /28 MA-M 🇺🇸 Qovia 00:12:82:00:00:00 /24 MA-L 🇺🇸 QPCOM INC. 88:A5:BD:00:00:00 /24 MA-L 🇺🇸 QPS, Inc. 00:01:F3:00:00:00 /24 MA-L 🇺🇸 Qqest Software Systems 00:07:F6:00:00:00 /24 MA-L 🇺🇸 QRS Music Technologies, Inc. 74:A4:A7:00:00:00 /24 MA-L
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