What this means
The IEEE assigned the MA-M block BC31985 to Hunan Gukam Railway Equipment 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:31:98:5, it is Hunan Gukam Railway Equipment Co.,Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix BC31985?
BC31985 is registered to Hunan Gukam Railway Equipment Co.,Ltd in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Hunan Gukam Railway Equipment Co.,Ltd's block covers 1,048,576 addresses.
What devices use BC31985?
Any network device with a MAC address starting BC:31:98:5 was manufactured by or for Hunan Gukam Railway Equipment Co.,Ltd.