What this means
The IEEE assigned the MA-L block 2C5AA3 to PROMATE ELECTRONIC CO.LTD. 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 2C:5A:A3, it is PROMATE ELECTRONIC CO.LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 2C5AA3?
2C5AA3 is registered to PROMATE ELECTRONIC CO.LTD 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. PROMATE ELECTRONIC CO.LTD's block covers 16,777,216 addresses.
What devices use 2C5AA3?
Any network device with a MAC address starting 2C:5A:A3 was manufactured by or for PROMATE ELECTRONIC CO.LTD.