Who owns MAC prefix 08004B?

08004B is registered to Planning Research Corp. in the IEEE MA-L registry.

What devices use 08004B?

Any network device with a MAC address starting 08:00:4B was manufactured by or for Planning Research Corp..

MA-L · OUI prefix

Planning Research Corp.

Any MAC address starting 08:00:4B is registered to Planning Research Corp. in US.

OUI prefix	08004B
Vendor	Planning Research Corp.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	08:00:4B:00:00:00

What this means

The IEEE assigned the MA-L block 08004B to Planning Research Corp.. 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 08:00:4B, it is Planning Research Corp. hardware.

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