What this means
The IEEE assigned the MA-L block CC4D38 to Carnegie Technologies. 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 CC:4D:38, it is Carnegie Technologies hardware.
Frequently Asked Questions
Who owns MAC prefix CC4D38?
CC4D38 is registered to Carnegie Technologies 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. Carnegie Technologies's block covers 16,777,216 addresses.
What devices use CC4D38?
Any network device with a MAC address starting CC:4D:38 was manufactured by or for Carnegie Technologies.