Who owns MAC prefix 0000CF?

0000CF is registered to HAYES MICROCOMPUTER PRODUCTS in the IEEE MA-L registry.

What devices use 0000CF?

Any network device with a MAC address starting 00:00:CF was manufactured by or for HAYES MICROCOMPUTER PRODUCTS.

MA-L · OUI prefix

HAYES MICROCOMPUTER PRODUCTS

Any MAC address starting 00:00:CF is registered to HAYES MICROCOMPUTER PRODUCTS in CA.

OUI prefix	0000CF
Vendor	HAYES MICROCOMPUTER PRODUCTS
Registry	MA-L (24-bit, large block)
Country	CA
Example MAC	00:00:CF:00:00:00

What this means

The IEEE assigned the MA-L block 0000CF to HAYES MICROCOMPUTER PRODUCTS. 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 00:00:CF, it is HAYES MICROCOMPUTER PRODUCTS hardware.

Other HAYES MICROCOMPUTER PRODUCTS prefixes

HAYES MICROCOMPUTER PRODUCTS holds 2 registered blocks in total.

0000DC

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