What this means
The IEEE assigned the MA-L block CC9F7A to Chiun Mai Communication System, 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 CC:9F:7A, it is Chiun Mai Communication System, Inc hardware.
Frequently Asked Questions
Who owns MAC prefix CC9F7A?
CC9F7A is registered to Chiun Mai Communication System, 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. Chiun Mai Communication System, Inc's block covers 16,777,216 addresses.
What devices use CC9F7A?
Any network device with a MAC address starting CC:9F:7A was manufactured by or for Chiun Mai Communication System, Inc.