What this means
The IEEE assigned the MA-L block 3CCFB4 to Telink Semiconductor (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 3C:CF:B4, it is Telink Semiconductor (Shanghai) Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 3CCFB4?
3CCFB4 is registered to Telink Semiconductor (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. Telink Semiconductor (Shanghai) Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 3CCFB4?
Any network device with a MAC address starting 3C:CF:B4 was manufactured by or for Telink Semiconductor (Shanghai) Co., Ltd..