Who owns MAC prefix 00CBBD?

00CBBD is registered to Cambridge Broadband Networks Group in the IEEE MA-L registry.

What devices use 00CBBD?

Any network device with a MAC address starting 00:CB:BD was manufactured by or for Cambridge Broadband Networks Group.

MA-L · OUI prefix

Cambridge Broadband Networks Group

Any MAC address starting 00:CB:BD is registered to Cambridge Broadband Networks Group.

OUI prefix	00CBBD
Vendor	Cambridge Broadband Networks Group
Registry	MA-L (24-bit, large block)
Example MAC	00:CB:BD:00:00:00

What this means

The IEEE assigned the MA-L block 00CBBD to Cambridge Broadband Networks Group. 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 00:CB:BD, it is Cambridge Broadband Networks Group hardware.

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