What this means
The IEEE assigned the MA-L block B4E01D to CONCEPTION ELECTRONIQUE. 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 B4:E0:1D, it is CONCEPTION ELECTRONIQUE hardware.
Frequently Asked Questions
Who owns MAC prefix B4E01D?
B4E01D is registered to CONCEPTION ELECTRONIQUE 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. CONCEPTION ELECTRONIQUE's block covers 16,777,216 addresses.
What devices use B4E01D?
Any network device with a MAC address starting B4:E0:1D was manufactured by or for CONCEPTION ELECTRONIQUE.