macadress

Vendor directory

17,375 blocks registered in United States.

Page 137 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 blocks17,375
MA-L count13,543
MA-M count976
MA-S count1,468
IAB count1,289
CID count99
Total address capacity229,909,483,520
Last changed hereSep 1, 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
🇺🇸 RLH INDUSTRIES,INC. F0:DA:7C:00:00:00 /24 MA-L 🇺🇸 RLW Inc. 00:15:91:00:00:00 /24 MA-L 🇺🇸 RLX Technologies 00:42:52:00:00:00 /24 MA-L 🇺🇸 RMI Laser LLC 70:B3:D5:C5:80:00 /36 MA-S 🇺🇸 RNET Technologies, Inc. 28:BB:59:00:00:00 /24 MA-L 🇺🇸 ROBE Show lighting 00:0D:19:00:00:00 /24 MA-L 🇺🇸 Robert Bosch Healthcare Systems, Inc. 00:50:C2:EA:00:00 /36 IAB 🇺🇸 Robert Bosch Healthcare Systems, Inc. 00:50:C2:F2:D0:00 /36 IAB 🇺🇸 Robert Bosch LLC Automotive Electronics D0:B4:98:00:00:00 /24 MA-L 🇺🇸 Robert Bosch, LLC 70:B3:D5:65:20:00 /36 MA-S 🇺🇸 ROBOfiber, Inc. 8C:1F:64:CF:10:00 /36 MA-S 🇺🇸 Roboteq 70:B3:D5:DA:50:00 /36 MA-S 🇺🇸 Roboteq 8C:1F:64:41:00:00 /36 MA-S 🇺🇸 Robotic Assistance Devices Residential Inc AC:EF:92:D0:00:00 /28 MA-M 🇺🇸 Robotic Research, LLC 70:B3:D5:EB:40:00 /36 MA-S 🇺🇸 Roche Diagnostics 00:60:19:00:00:00 /24 MA-L 🇺🇸 Rochester Network Supply, Inc. 6C:47:25:00:00:00 /24 MA-L 🇺🇸 ROCKETCHIPS, INC. 00:D0:3E:00:00:00 /24 MA-L 🇺🇸 RocketLogix, Inc. 00:04:52:00:00:00 /24 MA-L 🇺🇸 Rockwell Automation 00:00:BC:00:00:00 /24 MA-L 🇺🇸 Rockwell Automation 00:1D:9C:00:00:00 /24 MA-L 🇺🇸 Rockwell Automation 08:61:95:00:00:00 /24 MA-L 🇺🇸 Rockwell Automation 18:4C:08:00:00:00 /24 MA-L 🇺🇸 Rockwell Automation 34:C0:F9:00:00:00 /24 MA-L 🇺🇸 Rockwell Automation 40:41:01:00:00:00 /24 MA-L 🇺🇸 Rockwell Automation 44:CC:6E:00:00:00 /24 MA-L 🇺🇸 Rockwell Automation 5C:21:67:00:00:00 /24 MA-L 🇺🇸 Rockwell Automation 5C:88:16:00:00:00 /24 MA-L 🇺🇸 Rockwell Automation 68:C8:EB:00:00:00 /24 MA-L 🇺🇸 Rockwell Automation BC:F4:99:00:00:00 /24 MA-L 🇺🇸 Rockwell Automation E4:8E:BB:00:00:00 /24 MA-L 🇺🇸 Rockwell Automation E4:90:69:00:00:00 /24 MA-L 🇺🇸 Rockwell Automation F4:54:33:00:00:00 /24 MA-L 🇺🇸 Rocon PLC Research Centre 00:1C:E7:00:00:00 /24 MA-L 🇺🇸 Rodgers Instruments US LLC 8C:1F:64:A4:20:00 /36 MA-S 🇺🇸 Rogue Engineering Inc. 00:50:C2:92:00:00 /36 IAB 🇺🇸 Rohati Systems 00:22:11:00:00:00 /24 MA-L 🇺🇸 Roku, Inc 10:59:32:00:00:00 /24 MA-L 🇺🇸 Roku, Inc 20:EF:BD:00:00:00 /24 MA-L 🇺🇸 Roku, Inc 34:5E:08:00:00:00 /24 MA-L 🇺🇸 Roku, Inc 50:06:F5:00:00:00 /24 MA-L 🇺🇸 Roku, Inc 54:4E:F0:00:00:00 /24 MA-L 🇺🇸 Roku, Inc 60:92:C8:00:00:00 /24 MA-L 🇺🇸 Roku, Inc 7C:67:AB:00:00:00 /24 MA-L 🇺🇸 Roku, Inc 84:EA:ED:00:00:00 /24 MA-L 🇺🇸 Roku, Inc 8C:49:62:00:00:00 /24 MA-L 🇺🇸 Roku, Inc 9C:F1:D4:00:00:00 /24 MA-L 🇺🇸 Roku, Inc A8:B5:7C:00:00:00 /24 MA-L 🇺🇸 Roku, Inc AC:AE:19:00:00:00 /24 MA-L 🇺🇸 Roku, Inc B0:EE:7B:00:00:00 /24 MA-L 🇺🇸 Roku, Inc BC:D7:D4:00:00:00 /24 MA-L 🇺🇸 Roku, Inc C8:3A:6B:00:00:00 /24 MA-L 🇺🇸 Roku, Inc D4:BE:DC:00:00:00 /24 MA-L 🇺🇸 Roku, Inc D4:E2:2F:00:00:00 /24 MA-L 🇺🇸 Roku, Inc D8:31:34:00:00:00 /24 MA-L 🇺🇸 Roku, Inc EC:9B:75:00:00:00 /24 MA-L 🇺🇸 Roku, Inc F8:B2:2C:00:00:00 /24 MA-L 🇺🇸 Roku, Inc. 00:0D:4B:00:00:00 /24 MA-L 🇺🇸 Roku, Inc. 08:05:81:00:00:00 /24 MA-L 🇺🇸 Roku, Inc. 88:DE:A9:00:00:00 /24 MA-L 🇺🇸 Roku, Inc. 8A:C7:2E:00:00:00 /24 CID 🇺🇸 Roku, Inc. AC:3A:7A:00:00:00 /24 MA-L 🇺🇸 Roku, Inc. B0:A7:37:00:00:00 /24 MA-L 🇺🇸 Roku, Inc. B8:3E:59:00:00:00 /24 MA-L 🇺🇸 Roku, Inc. B8:A1:75:00:00:00 /24 MA-L 🇺🇸 Roku, Inc. CC:6D:A0:00:00:00 /24 MA-L 🇺🇸 Roku, Inc. D0:4D:2C:00:00:00 /24 MA-L 🇺🇸 Roku, Inc. DC:3A:5E:00:00:00 /24 MA-L 🇺🇸 Roll Systems Inc. 00:0C:52:00:00:00 /24 MA-L 🇺🇸 Rolls-Royce 00:0C:E2:00:00:00 /24 MA-L 🇺🇸 ROLM MIL-SPEC COMPUTERS 00:00:9C:00:00:00 /24 MA-L 🇺🇸 ROMWin Co.,Ltd. 00:08:EB:00:00:00 /24 MA-L 🇺🇸 Ronan Engineering 00:50:C2:9C:E0:00 /36 IAB 🇺🇸 ROOFTOP COMMUNICATIONS CORP. 00:E0:0B:00:00:00 /24 MA-L 🇺🇸 RoomReady/Zdi, Inc. 64:FB:50:00:00:00 /24 MA-L 🇺🇸 Roost 4C:65:A8:30:00:00 /28 MA-M 🇺🇸 Root Automation 70:B3:D5:6A:20:00 /36 MA-S 🇺🇸 Roqos, Inc. A8:C8:7F:00:00:00 /24 MA-L 🇺🇸 Rosco Entertainment Technology, Inc. 00:04:39:00:00:00 /24 MA-L 🇺🇸 Rosco, Inc F4:69:D5:70:00:00 /28 MA-M 🇺🇸 ROSE ELECTRONICS 00:40:A4:00:00:00 /24 MA-L 🇺🇸 Rose Technologies 00:50:C2:4B:90:00 /36 IAB 🇺🇸 Rosemount Analytical F8:02:78:B0:00:00 /28 MA-M 🇺🇸 Rosemount Analytical 40:D8:55:02:50:00 /36 IAB 🇺🇸 ROSEMOUNT CONTROLS 00:00:68:00:00:00 /24 MA-L 🇺🇸 Rosemount Inc. 00:26:16:00:00:00 /24 MA-L 🇺🇸 Rosemount Process Analytical 00:0A:AE:00:00:00 /24 MA-L 🇺🇸 Rosen Aviation 00:35:60:00:00:00 /24 MA-L 🇺🇸 Rosenxt Technology USA 8C:1F:64:74:30:00 /36 MA-S 🇺🇸 Rosewill Inc. 68:1C:A2:00:00:00 /24 MA-L 🇺🇸 Roslen Eco-Networking Products 00:1B:C5:0B:10:00 /36 MA-S 🇺🇸 Ross Controls 00:21:B3:00:00:00 /24 MA-L 🇺🇸 ROSS TECHNOLOGY, INC. 00:A0:39:00:00:00 /24 MA-L 🇺🇸 Roush 70:B3:D5:65:B0:00 /36 MA-S 🇺🇸 RouteFree, Inc. 00:08:B6:00:00:00 /24 MA-L 🇺🇸 RouteFree, Inc. 00:50:C2:0E:60:00 /36 IAB 🇺🇸 Roving Networks 00:06:66:00:00:00 /24 MA-L 🇺🇸 Roxford 70:B3:D5:65:10:00 /36 MA-S 🇺🇸 RPA Electronic Solutions, Inc. 00:50:C2:E8:B0:00 /36 IAB 🇺🇸 RPA Reserch Co., Ltd. 00:0C:05:00:00:00 /24 MA-L
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