What this means
The IEEE assigned the MA-L block 001C40 to VDG-Security 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 00:1C:40, it is VDG-Security bv hardware.
Frequently Asked Questions
Who owns MAC prefix 001C40?
001C40 is registered to VDG-Security bv 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. VDG-Security bv's block covers 16,777,216 addresses.
What devices use 001C40?
Any network device with a MAC address starting 00:1C:40 was manufactured by or for VDG-Security bv.