What this means
The IEEE assigned the MA-L block BC458C to Shenzhen Topwise 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 BC:45:8C, it is Shenzhen Topwise Communication Co.,Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix BC458C?
BC458C is registered to Shenzhen Topwise 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. Shenzhen Topwise Communication Co.,Ltd's block covers 16,777,216 addresses.
What devices use BC458C?
Any network device with a MAC address starting BC:45:8C was manufactured by or for Shenzhen Topwise Communication Co.,Ltd.