Who owns MAC prefix 64FB81C?

64FB81C is registered to Bridgeport Instruments, LLC in the IEEE MA-M registry.

What devices use 64FB81C?

Any network device with a MAC address starting 64:FB:81:C was manufactured by or for Bridgeport Instruments, LLC.

MA-M · OUI prefix

Bridgeport Instruments, LLC

Any MAC address starting 64:FB:81:C is registered to Bridgeport Instruments, LLC in US.

OUI prefix	64FB81C
Vendor	Bridgeport Instruments, LLC
Registry	MA-M (28-bit, medium block)
Country	US
Example MAC	64:FB:81:C:00:00:00

What this means

The IEEE assigned the MA-M block 64FB81C to Bridgeport Instruments, 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 64:FB:81:C, it is Bridgeport Instruments, LLC hardware.

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