What this means
The IEEE assigned the MA-L block 000A40 to Crown Audio -- Harmanm International. 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 00:0A:40, it is Crown Audio -- Harmanm International hardware.
Frequently Asked Questions
Who owns MAC prefix 000A40?
000A40 is registered to Crown Audio -- Harmanm International 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. Crown Audio -- Harmanm International's block covers 16,777,216 addresses.
What devices use 000A40?
Any network device with a MAC address starting 00:0A:40 was manufactured by or for Crown Audio -- Harmanm International.