Who owns MAC prefix 4C548B?

4C548B is registered to Cerebras System Inc. in the IEEE MA-L registry.

What devices use 4C548B?

Any network device with a MAC address starting 4C:54:8B was manufactured by or for Cerebras System Inc..

MA-L · OUI prefix

Cerebras System Inc.

Any MAC address starting 4C:54:8B is registered to Cerebras System Inc. in US.

OUI prefix	4C548B
Vendor	Cerebras System Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	4C:54:8B:00:00:00

What this means

The IEEE assigned the MA-L block 4C548B to Cerebras System 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 4C:54:8B, it is Cerebras System Inc. hardware.

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