What this means
The IEEE assigned the MA-L block C40E45 to ACK Networks,Inc.. 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 C4:0E:45, it is ACK Networks,Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix C40E45?
C40E45 is registered to ACK Networks,Inc. 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. ACK Networks,Inc.'s block covers 16,777,216 addresses.
What devices use C40E45?
Any network device with a MAC address starting C4:0E:45 was manufactured by or for ACK Networks,Inc..