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.
Frequently Asked Questions
Who owns MAC prefix 4451DB?
4451DB is registered to Raytheon BBN Technologies in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Raytheon BBN Technologies's block covers 16,777,216 addresses.
What devices use 4451DB?
Any network device with a MAC address starting 44:51:DB was manufactured by or for Raytheon BBN Technologies.