What this means
The IEEE assigned the MA-L block 001CEF to Primax Electronics 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 00:1C:EF, it is Primax Electronics Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 001CEF?
001CEF is registered to Primax Electronics 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. Primax Electronics Ltd.'s block covers 16,777,216 addresses.
What devices use 001CEF?
Any network device with a MAC address starting 00:1C:EF was manufactured by or for Primax Electronics Ltd..