What this means
The IEEE assigned the MA-L block 0018AA to Protec Fire Detection plc. 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 00:18:AA, it is Protec Fire Detection plc hardware.
Frequently Asked Questions
Who owns MAC prefix 0018AA?
0018AA is registered to Protec Fire Detection plc 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. Protec Fire Detection plc's block covers 16,777,216 addresses.
What devices use 0018AA?
Any network device with a MAC address starting 00:18:AA was manufactured by or for Protec Fire Detection plc.