What this means
The IEEE assigned the MA-M block 7813056 to CRRC Nangjing Puzhen Haitai Brake 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 78:13:05:6, it is CRRC Nangjing Puzhen Haitai Brake Equipment Co., LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 7813056?
7813056 is registered to CRRC Nangjing Puzhen Haitai Brake 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. CRRC Nangjing Puzhen Haitai Brake Equipment Co., LTD's block covers 1,048,576 addresses.
What devices use 7813056?
Any network device with a MAC address starting 78:13:05:6 was manufactured by or for CRRC Nangjing Puzhen Haitai Brake Equipment Co., LTD.