What this means
The IEEE assigned the MA-L block CC5289 to SHENZHEN OPTFOCUS TECHNOLOGY.,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:52:89, it is SHENZHEN OPTFOCUS TECHNOLOGY.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix CC5289?
CC5289 is registered to SHENZHEN OPTFOCUS TECHNOLOGY.,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. SHENZHEN OPTFOCUS TECHNOLOGY.,LTD's block covers 16,777,216 addresses.
What devices use CC5289?
Any network device with a MAC address starting CC:52:89 was manufactured by or for SHENZHEN OPTFOCUS TECHNOLOGY.,LTD.