What this means
The IEEE assigned the MA-L block 54489C to CDOUBLES ELECTRONICS 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 54:48:9C, it is CDOUBLES ELECTRONICS CO. LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix 54489C?
54489C is registered to CDOUBLES ELECTRONICS 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. CDOUBLES ELECTRONICS CO. LTD.'s block covers 16,777,216 addresses.
What devices use 54489C?
Any network device with a MAC address starting 54:48:9C was manufactured by or for CDOUBLES ELECTRONICS CO. LTD..