What this means
The IEEE assigned the MA-L block CC5FBF to Topwise 3G Communication 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:5F:BF, it is Topwise 3G Communication Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix CC5FBF?
CC5FBF is registered to Topwise 3G Communication 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. Topwise 3G Communication Co., Ltd.'s block covers 16,777,216 addresses.
What devices use CC5FBF?
Any network device with a MAC address starting CC:5F:BF was manufactured by or for Topwise 3G Communication Co., Ltd..