What this means
The IEEE assigned the MA-L block 00099C to Naval Research Laboratory. 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 00:09:9C, it is Naval Research Laboratory hardware.
Frequently Asked Questions
Who owns MAC prefix 00099C?
00099C is registered to Naval Research Laboratory 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. Naval Research Laboratory's block covers 16,777,216 addresses.
What devices use 00099C?
Any network device with a MAC address starting 00:09:9C was manufactured by or for Naval Research Laboratory.