What this means
The IEEE assigned the MA-L block 0012EF to OneAccess SA. 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 00:12:EF, it is OneAccess SA hardware.
Frequently Asked Questions
Who owns MAC prefix 0012EF?
0012EF is registered to OneAccess SA 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. OneAccess SA's block covers 16,777,216 addresses.
What devices use 0012EF?
Any network device with a MAC address starting 00:12:EF was manufactured by or for OneAccess SA.