macadress

Vendor directory

17,372 blocks registered in United States.

Page 129 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
🇺🇸 Phonesuite 84:B3:86:30:00:00 /28 MA-M 🇺🇸 Phorus 60:B6:06:00:00:00 /24 MA-L 🇺🇸 Photometrics, Inc. 00:0F:A8:00:00:00 /24 MA-L 🇺🇸 Photon Counting Systems LLC 8C:1F:64:03:60:00 /36 MA-S 🇺🇸 Photonex Corporation 00:04:73:00:00:00 /24 MA-L 🇺🇸 Photonic Bridges Inc. 00:50:C2:4E:60:00 /36 IAB 🇺🇸 Photonic Bridges, Inc. 00:50:C2:10:C0:00 /36 IAB 🇺🇸 Photonicbridges (China) Co., Ltd. 00:16:B3:00:00:00 /24 MA-L 🇺🇸 PHOTONICS CORPORATION 00:C0:9A:00:00:00 /24 MA-L 🇺🇸 PhotoTelesis LP 00:50:C2:B1:50:00 /36 IAB 🇺🇸 PHOTRON USA 00:D0:8A:00:00:00 /24 MA-L 🇺🇸 Photuris, Inc. 00:06:5E:00:00:00 /24 MA-L 🇺🇸 Phyn LLC 28:F5:37:40:00:00 /28 MA-M 🇺🇸 Physical Acoustics Corporation 00:50:C2:72:D0:00 /36 IAB 🇺🇸 Physical Graph Corporation D0:52:A8:00:00:00 /24 MA-L 🇺🇸 Physical Security Interoperability Alliance 1A:90:21:00:00:00 /24 CID 🇺🇸 Physio-Control, Inc 40:BD:9E:00:00:00 /24 MA-L 🇺🇸 PHYSIOMETRIX,INC 00:14:B5:00:00:00 /24 MA-L 🇺🇸 Phyton, Inc. Microsystems and Development Tools 70:B3:D5:8A:40:00 /36 MA-S 🇺🇸 PHYZHON Health Inc 70:B3:D5:74:40:00 /36 MA-S 🇺🇸 Pi-Coral 28:E4:76:00:00:00 /24 MA-L 🇺🇸 Pi-Coral Inc AC:50:36:00:00:00 /24 MA-L 🇺🇸 Pica8, Inc. 48:6E:73:00:00:00 /24 MA-L 🇺🇸 PICAZO COMMUNICATIONS, INC. 00:50:32:00:00:00 /24 MA-L 🇺🇸 PICKER INTERNATIONAL 00:80:DC:00:00:00 /24 MA-L 🇺🇸 Pickering Laboratories 00:50:C2:44:30:00 /36 IAB 🇺🇸 Pico Communications 00:02:EB:00:00:00 /24 MA-L 🇺🇸 Pico Computing, Inc. 00:50:C2:44:20:00 /36 IAB 🇺🇸 Pico-Tesla Magnetic Therapies 00:25:10:00:00:00 /24 MA-L 🇺🇸 Picobrew LLC D0:76:50:60:00:00 /28 MA-M 🇺🇸 PicoLight 00:04:85:00:00:00 /24 MA-L 🇺🇸 Picosecond Pulse Labs 00:16:14:00:00:00 /24 MA-L 🇺🇸 Picture Elements, Inc. 00:50:C2:33:40:00 /36 IAB 🇺🇸 Picture Elements, Inc. 70:B3:D5:0E:E0:00 /36 MA-S 🇺🇸 PictureTel Corp. 00:10:1A:00:00:00 /24 MA-L 🇺🇸 Pie Digital, Inc. B4:ED:19:00:00:00 /24 MA-L 🇺🇸 Pigs Can Fly Labs LLC 8C:1F:64:DC:00:00 /36 MA-S 🇺🇸 Pillar Data Systems 00:0B:08:00:00:00 /24 MA-L 🇺🇸 PIN GENIE, INC.DBA LOCKLY 90:15:64:20:00:00 /28 MA-M 🇺🇸 PingGPS Inc 38:73:EA:70:00:00 /28 MA-M 🇺🇸 PINGTEL CORP. 00:D0:1E:00:00:00 /24 MA-L 🇺🇸 PINNACLE DATA SYSTEMS, INC. 00:C0:07:00:00:00 /24 MA-L 🇺🇸 Pinnacle Technology 00:50:C2:42:50:00 /36 IAB 🇺🇸 Pipal Systems 00:0A:AF:00:00:00 /24 MA-L 🇺🇸 PIPELINKS, INC. 00:90:24:00:00:00 /24 MA-L 🇺🇸 Piper Networks, Inc. C4:E5:06:00:00:00 /24 MA-L 🇺🇸 Piranha EMS Inc. 70:B3:D5:00:60:00 /36 MA-S 🇺🇸 Piranha EMS Inc. 70:B3:D5:8C:C0:00 /36 MA-S 🇺🇸 Pitney Bowes, Inc 00:19:41:00:00:00 /24 MA-L 🇺🇸 Pitney Bowes, Inc 00:50:C2:47:B0:00 /36 IAB 🇺🇸 Pivitec, LLC 00:50:C2:E8:80:00 /36 IAB 🇺🇸 Pivot3, Inc. 00:17:6C:00:00:00 /24 MA-L 🇺🇸 Pivotal Commware, Inc. 40:A9:3F:00:00:00 /24 MA-L 🇺🇸 PIVOTAL NETWORKING, INC. 00:60:20:00:00:00 /24 MA-L 🇺🇸 Pivotal Optics E4:28:05:00:00:00 /24 MA-L 🇺🇸 Pivotal Systems Corporation B0:A1:0A:00:00:00 /24 MA-L 🇺🇸 PIVOTAL TECHNOLOGIES 00:D0:BF:00:00:00 /24 MA-L 🇺🇸 PIVOTAL TECHNOLOGIES, INC. 00:40:0A:00:00:00 /24 MA-L 🇺🇸 Pivotech Systems Inc. 00:06:2F:00:00:00 /24 MA-L 🇺🇸 Pivothead 70:B3:D5:63:C0:00 /36 MA-S 🇺🇸 PIXEL COMPUTER INC. 08:00:43:00:00:00 /24 MA-L 🇺🇸 Pixel FX F4:31:49:00:00:00 /24 MA-L 🇺🇸 Pixel Velocity, Inc 00:21:4A:00:00:00 /24 MA-L 🇺🇸 Pixel Velocity, Inc 00:50:C2:59:40:00 /36 IAB 🇺🇸 PIXEL VISION 00:E0:9F:00:00:00 /24 MA-L 🇺🇸 Pixel8 Networks 00:25:54:00:00:00 /24 MA-L 🇺🇸 Pixelworks, Inc. 00:08:18:00:00:00 /24 MA-L 🇺🇸 Pixim 00:12:23:00:00:00 /24 MA-L 🇺🇸 Pixon Imaging A0:BA:B8:00:00:00 /24 MA-L 🇺🇸 PJRC.COM, LLC 04:E9:E5:00:00:00 /24 MA-L 🇺🇸 PK Solutions LLC 30:43:D7:90:00:00 /28 MA-M 🇺🇸 Plair Media Inc. 00:1B:C5:06:50:00 /36 MA-S 🇺🇸 PLAiR Media, Inc 00:1B:C5:07:60:00 /36 MA-S 🇺🇸 Planet Bingo® — 3rd Rock Gaming® 08:0A:4E:00:00:00 /24 MA-L 🇺🇸 Planet Innovation Products Inc. 70:B3:D5:C7:50:00 /36 MA-S 🇺🇸 Planet Innovation Products Inc. 8C:1F:64:97:80:00 /36 MA-S 🇺🇸 Planet Networks 50:67:87:00:00:00 /24 MA-L 🇺🇸 Planewave Instruments 70:B3:D5:CB:40:00 /36 MA-S 🇺🇸 PLANEX COMMUNICATIONS INC. E0:9D:B8:00:00:00 /24 MA-L 🇺🇸 Planning Research Corp. 08:00:4B:00:00:00 /24 MA-L 🇺🇸 PLANTRONICS, INC. 00:03:89:00:00:00 /24 MA-L 🇺🇸 PLANTRONICS, INC. 00:19:7F:00:00:00 /24 MA-L 🇺🇸 PLANTRONICS, INC. 00:23:7F:00:00:00 /24 MA-L 🇺🇸 PLANTRONICS, INC. 0C:E0:E4:00:00:00 /24 MA-L 🇺🇸 PLANTRONICS, INC. 38:5C:76:00:00:00 /24 MA-L 🇺🇸 PLANTRONICS, INC. 48:C1:AC:00:00:00 /24 MA-L 🇺🇸 PLANTRONICS, INC. 8C:9B:2D:00:00:00 /24 MA-L 🇺🇸 PLANTRONICS, INC. BC:F2:92:00:00:00 /24 MA-L 🇺🇸 PLANTRONICS, INC. E4:22:A5:00:00:00 /24 MA-L 🇺🇸 PLANTRONICS, INC. F4:B6:88:00:00:00 /24 MA-L 🇺🇸 Plasmability, LLC 70:B3:D5:2A:70:00 /36 MA-S 🇺🇸 Plasmon LMS 00:08:6C:00:00:00 /24 MA-L 🇺🇸 Plaster Networks 00:24:E7:00:00:00 /24 MA-L 🇺🇸 Plastic Logic A4:38:FC:00:00:00 /24 MA-L 🇺🇸 Platina Systems Inc. 50:18:4C:00:00:00 /24 MA-L 🇺🇸 Plato Networks Inc. 00:1C:AF:00:00:00 /24 MA-L 🇺🇸 Platys Communications 00:06:F2:00:00:00 /24 MA-L 🇺🇸 PLAUD Inc. 9C:06:CF:00:00:00 /24 MA-L 🇺🇸 Pleiades Communications, Inc. 00:03:F9:00:00:00 /24 MA-L 🇺🇸 Plenty Unlimited Inc 70:B3:D5:D0:40:00 /36 MA-S
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