Who owns MAC prefix C0B550?

C0B550 is registered to Broadcom Limited in the IEEE MA-L registry.

What devices use C0B550?

Any network device with a MAC address starting C0:B5:50 was manufactured by or for Broadcom Limited.

MA-L · OUI prefix

Broadcom Limited

Any MAC address starting C0:B5:50 is registered to Broadcom Limited in US.

OUI prefix	C0B550
Vendor	Broadcom Limited
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	C0:B5:50:00:00:00

What this means

The IEEE assigned the MA-L block C0B550 to Broadcom Limited. 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 C0:B5:50, it is Broadcom Limited hardware.

Other Broadcom Limited prefixes

Broadcom Limited holds 21 registered blocks in total.

00620B 7410E0 043201 1423F2 1423F3 34D868 405B7F 4857D2 5C6F69 6C8375 6C92CF 70B7E4 all 21 »

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