Who owns MAC prefix B84C871?

B84C871 is registered to em-trak in the IEEE MA-M registry.

What devices use B84C871?

Any network device with a MAC address starting B8:4C:87:1 was manufactured by or for em-trak.

MA-M · OUI prefix

em-trak

Any MAC address starting B8:4C:87:1 is registered to em-trak.

OUI prefix	B84C871
Vendor	em-trak
Registry	MA-M (28-bit, medium block)
Example MAC	B8:4C:87:1:00:00:00

What this means

The IEEE assigned the MA-M block B84C871 to em-trak. 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 B8:4C:87:1, it is em-trak hardware.

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