What this means
The IEEE assigned the MA-L block CC81DA to Phicomm (Shanghai) Co., Ltd.. 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:81:DA, it is Phicomm (Shanghai) Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix CC81DA?
CC81DA is registered to Phicomm (Shanghai) Co., Ltd. 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. Phicomm (Shanghai) Co., Ltd.'s block covers 16,777,216 addresses.
What devices use CC81DA?
Any network device with a MAC address starting CC:81:DA was manufactured by or for Phicomm (Shanghai) Co., Ltd..