macadress

Vendor directory

17,386 blocks registered in United States.

Page 163 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 organizations8,986
Total blocks17,386
MA-L count13,551
MA-M count977
MA-S count1,470
IAB count1,289
CID count99
Total address capacity230,044,758,016
Last changed hereSep 3, 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 Networks211
Amazon Technologies Inc.204
Dell Inc.184
Hewlett Packard Enterprise176
Silicon Laboratories154
Organization Prefix Type
🇺🇸 Ubiquiti Inc 74:83:C2:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc 74:AC:B9:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc 74:F9:2C:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc 74:FA:29:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc 78:45:58:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc 78:8A:20:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc 80:2A:A8:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc 84:78:48:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc 8C:30:66:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc 8C:ED:E1:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc 90:41:B2:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc 94:2A:6F:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc 9C:05:D6:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc A4:F8:FF:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc A8:9C:6C:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc AC:8B:A9:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc B4:FB:E4:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc CC:35:D9:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc D0:21:F9:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc D4:89:C1:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc D8:B3:70:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc D8:C2:62:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc DC:9F:DB:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc E0:63:DA:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc E4:38:83:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc F0:9F:C2:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc F4:92:BF:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc F4:E2:C6:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc FC:EC:DA:00:00:00 /24 MA-L 🇺🇸 Ubiquiti Inc 00:50:C2:B0:40:00 /36 IAB 🇺🇸 Ubyon Inc. 14:01:9C:00:00:00 /24 MA-L 🇺🇸 uControl, Inc. 00:18:5A:00:00:00 /24 MA-L 🇺🇸 UDISENSE DBA NANIT 44:EA:54:00:00:00 /24 MA-L 🇺🇸 UgMO Technologies 00:50:C2:EC:00:00 /36 IAB 🇺🇸 uHave Control, Inc 8C:1F:64:99:40:00 /36 MA-S 🇺🇸 UHD Alliance 1A:BB:FB:00:00:00 /24 CID 🇺🇸 Uhnder C0:61:9A:D0:00:00 /28 MA-M 🇺🇸 UKG 00:40:58:00:00:00 /24 MA-L 🇺🇸 UKG DC:36:43:70:00:00 /28 MA-M 🇺🇸 Ulterius Technologies, LLC 54:DF:00:00:00:00 /24 MA-L 🇺🇸 UltiMachine 3C:FA:D3:A0:00:00 /28 MA-M 🇺🇸 Ultimate Software 70:B3:D5:03:C0:00 /36 MA-S 🇺🇸 ULTIMATE TECHNOLOGY CORP. 00:90:51:00:00:00 /24 MA-L 🇺🇸 Ultimate Technology, Inc. 00:50:C2:49:40:00 /36 IAB 🇺🇸 Ultra Electronics Flightline Systems 40:D8:55:05:A0:00 /36 IAB 🇺🇸 Ultra Ethernet Consortium FA:7A:CB:00:00:00 /24 CID 🇺🇸 Ultra Stereo Labs, Inc 00:23:FC:00:00:00 /24 MA-L 🇺🇸 UltraClenz, LLC 78:30:E1:00:00:00 /24 MA-L 🇺🇸 ULTRAK, INC. 00:D0:57:00:00:00 /24 MA-L 🇺🇸 Ultratec, Inc. 00:1B:C4:00:00:00 /24 MA-L 🇺🇸 UltraVision Security Systems, Inc. 00:50:C2:8D:60:00 /36 IAB 🇺🇸 Umojo 28:F5:37:10:00:00 /28 MA-M 🇺🇸 UnaliWear, Inc. A0:C5:F2:D0:00:00 /28 MA-M 🇺🇸 UNATECH. CO.,LTD 00:11:31:00:00:00 /24 MA-L 🇺🇸 Underground Systems, Inc. 70:B3:D5:42:40:00 /36 MA-S 🇺🇸 UNGERMANN-BASS INC. 00:BB:F0:00:00:00 /24 MA-L 🇺🇸 UNGERMANN-BASS INC. 00:DD:00:00:00:00 /24 MA-L 🇺🇸 UNGERMANN-BASS INC. 00:DD:01:00:00:00 /24 MA-L 🇺🇸 UNGERMANN-BASS INC. 00:DD:02:00:00:00 /24 MA-L 🇺🇸 UNGERMANN-BASS INC. 00:DD:03:00:00:00 /24 MA-L 🇺🇸 UNGERMANN-BASS INC. 00:DD:04:00:00:00 /24 MA-L 🇺🇸 UNGERMANN-BASS INC. 00:DD:05:00:00:00 /24 MA-L 🇺🇸 UNGERMANN-BASS INC. 00:DD:06:00:00:00 /24 MA-L 🇺🇸 UNGERMANN-BASS INC. 00:DD:07:00:00:00 /24 MA-L 🇺🇸 UNGERMANN-BASS INC. 00:DD:08:00:00:00 /24 MA-L 🇺🇸 UNGERMANN-BASS INC. 00:DD:09:00:00:00 /24 MA-L 🇺🇸 UNGERMANN-BASS INC. 00:DD:0A:00:00:00 /24 MA-L 🇺🇸 UNGERMANN-BASS INC. 00:DD:0B:00:00:00 /24 MA-L 🇺🇸 UNGERMANN-BASS INC. 00:DD:0C:00:00:00 /24 MA-L 🇺🇸 UNGERMANN-BASS INC. 00:DD:0D:00:00:00 /24 MA-L 🇺🇸 UNGERMANN-BASS INC. 00:DD:0E:00:00:00 /24 MA-L 🇺🇸 UNGERMANN-BASS INC. 00:DD:0F:00:00:00 /24 MA-L 🇺🇸 unGlue, Inc 90:50:5A:00:00:00 /24 MA-L 🇺🇸 Unicess Network, Inc. 00:05:E9:00:00:00 /24 MA-L 🇺🇸 Unico, Inc. 00:07:44:00:00:00 /24 MA-L 🇺🇸 Unicoi Systems 18:39:19:00:00:00 /24 MA-L 🇺🇸 Unicoi Systems 00:50:C2:17:70:00 /36 IAB 🇺🇸 Unified Display Interface SIG 00:18:D4:00:00:00 /24 MA-L 🇺🇸 Unify Networks, Inc. 00:02:08:00:00:00 /24 MA-L 🇺🇸 Unigen Corporation 00:23:61:00:00:00 /24 MA-L 🇺🇸 Unikey Technologies 7C:72:E4:00:00:00 /24 MA-L 🇺🇸 Uniloc USA Inc. 00:23:D0:00:00:00 /24 MA-L 🇺🇸 Unimar, Inc. 8C:1F:64:2F:C0:00 /36 MA-S 🇺🇸 Unimark 00:50:C2:06:A0:00 /36 IAB 🇺🇸 UNIMICRO SYSTEMS, INC. 00:C0:47:00:00:00 /24 MA-L 🇺🇸 Union Pacific Railroad 44:F8:49:00:00:00 /24 MA-L 🇺🇸 Uniphone Inc. 00:21:11:00:00:00 /24 MA-L 🇺🇸 UNIQA, Inc. 00:06:9E:00:00:00 /24 MA-L 🇺🇸 Unisight Digital Products 70:B3:D5:2D:80:00 /36 MA-S 🇺🇸 UNISPHERE SOLUTIONS 00:90:1A:00:00:00 /24 MA-L 🇺🇸 UNISYS 00:00:3D:00:00:00 /24 MA-L 🇺🇸 UNISYS CORPORATION 08:00:0B:00:00:00 /24 MA-L 🇺🇸 UNITED BARCODE INDUSTRIES 00:C0:67:00:00:00 /24 MA-L 🇺🇸 United Electronic Industries, Inc. (EUI) 00:0C:94:00:00:00 /24 MA-L 🇺🇸 United Internetworks, Inc. 00:06:C0:00:00:00 /24 MA-L 🇺🇸 UNITED NETWORKS INC. 00:80:B5:00:00:00 /24 MA-L 🇺🇸 United States Technologies Inc. 70:B3:D5:74:F0:00 /36 MA-S 🇺🇸 United States Technologies Inc. 8C:1F:64:52:50:00 /36 MA-S 🇺🇸 United Western Technologies 00:50:C2:46:70:00 /36 IAB 🇺🇸 UNITEK Electronics INC. 00:0A:4E:00:00:00 /24 MA-L
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