What this means
The IEEE assigned the MA-L block AC54EC to IEEE P1823 Standards Working Group. 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 AC:54:EC, it is IEEE P1823 Standards Working Group hardware.
Frequently Asked Questions
Who owns MAC prefix AC54EC?
AC54EC is registered to IEEE P1823 Standards Working Group 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. IEEE P1823 Standards Working Group's block covers 16,777,216 addresses.
What devices use AC54EC?
Any network device with a MAC address starting AC:54:EC was manufactured by or for IEEE P1823 Standards Working Group.