Who owns MAC prefix 7C7B8B?

7C7B8B is registered to Control Concepts, Inc. in the IEEE MA-L registry.

What devices use 7C7B8B?

Any network device with a MAC address starting 7C:7B:8B was manufactured by or for Control Concepts, Inc..

MA-L · OUI prefix

Control Concepts, Inc.

Any MAC address starting 7C:7B:8B is registered to Control Concepts, Inc. in US.

OUI prefix	7C7B8B
Vendor	Control Concepts, Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	7C:7B:8B:00:00:00

What this means

The IEEE assigned the MA-L block 7C7B8B to Control Concepts, Inc.. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 7C:7B:8B, it is Control Concepts, Inc. hardware.

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