Who owns MAC prefix 0040E6?

0040E6 is registered to C.A.E.N. in the IEEE MA-L registry.

What devices use 0040E6?

Any network device with a MAC address starting 00:40:E6 was manufactured by or for C.A.E.N..

MA-L · OUI prefix

C.A.E.N.

Any MAC address starting 00:40:E6 is registered to C.A.E.N. in FR.

OUI prefix	0040E6
Vendor	C.A.E.N.
Registry	MA-L (24-bit, large block)
Country	FR
Example MAC	00:40:E6:00:00:00

What this means

The IEEE assigned the MA-L block 0040E6 to C.A.E.N.. 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 00:40:E6, it is C.A.E.N. hardware.

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