What this means
The IEEE assigned the MA-M block F81D786 to Zengge Co., Limited. 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 F8:1D:78:6, it is Zengge Co., Limited hardware.
Frequently Asked Questions
Who owns MAC prefix F81D786?
F81D786 is registered to Zengge Co., Limited 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. Zengge Co., Limited's block covers 1,048,576 addresses.
What devices use F81D786?
Any network device with a MAC address starting F8:1D:78:6 was manufactured by or for Zengge Co., Limited.