What this means
The IEEE assigned the MA-L block C4A3EF to UEI Electronics Private 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 C4:A3:EF, it is UEI Electronics Private Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix C4A3EF?
C4A3EF is registered to UEI Electronics Private 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. UEI Electronics Private Ltd.'s block covers 16,777,216 addresses.
What devices use C4A3EF?
Any network device with a MAC address starting C4:A3:EF was manufactured by or for UEI Electronics Private Ltd..