What this means
The IEEE assigned the MA-L block A0C2DE to Costar Video Systems. 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 A0:C2:DE, it is Costar Video Systems hardware.
Frequently Asked Questions
Who owns MAC prefix A0C2DE?
A0C2DE is registered to Costar Video Systems 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. Costar Video Systems's block covers 16,777,216 addresses.
What devices use A0C2DE?
Any network device with a MAC address starting A0:C2:DE was manufactured by or for Costar Video Systems.