Who owns MAC prefix 08005C?

08005C is registered to FOUR PHASE SYSTEMS in the IEEE MA-L registry.

What devices use 08005C?

Any network device with a MAC address starting 08:00:5C was manufactured by or for FOUR PHASE SYSTEMS.

MA-L · OUI prefix

FOUR PHASE SYSTEMS

Any MAC address starting 08:00:5C is registered to FOUR PHASE SYSTEMS in US.

OUI prefix	08005C
Vendor	FOUR PHASE SYSTEMS
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	08:00:5C:00:00:00

What this means

The IEEE assigned the MA-L block 08005C to FOUR PHASE SYSTEMS. 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 08:00:5C, it is FOUR PHASE SYSTEMS hardware.

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