Who owns MAC prefix 4451DB?

4451DB is registered to Raytheon BBN Technologies in the IEEE MA-L registry.

What devices use 4451DB?

Any network device with a MAC address starting 44:51:DB was manufactured by or for Raytheon BBN Technologies.

MA-L · OUI prefix

Raytheon BBN Technologies

Any MAC address starting 44:51:DB is registered to Raytheon BBN Technologies in US.

OUI prefix	4451DB
Vendor	Raytheon BBN Technologies
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	44:51:DB:00:00:00

What this means

The IEEE assigned the MA-L block 4451DB to Raytheon BBN Technologies. 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 44:51:DB, it is Raytheon BBN Technologies hardware.

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