What this means
The IEEE assigned the MA-L block C4BAA3 to Beijing Winicssec Technologies 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 C4:BA:A3, it is Beijing Winicssec Technologies Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix C4BAA3?
C4BAA3 is registered to Beijing Winicssec Technologies 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. Beijing Winicssec Technologies Co., Ltd.'s block covers 16,777,216 addresses.
What devices use C4BAA3?
Any network device with a MAC address starting C4:BA:A3 was manufactured by or for Beijing Winicssec Technologies Co., Ltd..