What this means
The IEEE assigned the MA-M block 7CE4A12 to De Haardt bv. 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 7C:E4:A1:2, it is De Haardt bv hardware.
Frequently Asked Questions
Who owns MAC prefix 7CE4A12?
7CE4A12 is registered to De Haardt bv in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. De Haardt bv's block covers 1,048,576 addresses.
What devices use 7CE4A12?
Any network device with a MAC address starting 7C:E4:A1:2 was manufactured by or for De Haardt bv.