Who owns MAC prefix 7C4A82?

7C4A82 is registered to Portsmith LLC in the IEEE MA-L registry.

What devices use 7C4A82?

Any network device with a MAC address starting 7C:4A:82 was manufactured by or for Portsmith LLC.

MA-L · OUI prefix

Portsmith LLC

Any MAC address starting 7C:4A:82 is registered to Portsmith LLC in US.

OUI prefix	7C4A82
Vendor	Portsmith LLC
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	7C:4A:82:00:00:00

What this means

The IEEE assigned the MA-L block 7C4A82 to Portsmith LLC. 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 7C:4A:82, it is Portsmith LLC hardware.

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