What this means
The IEEE assigned the MA-M block F0221D7 to Bulat 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 F0:22:1D:7, it is Bulat Co., Limited hardware.
Frequently Asked Questions
Who owns MAC prefix F0221D7?
F0221D7 is registered to Bulat 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. Bulat Co., Limited's block covers 1,048,576 addresses.
What devices use F0221D7?
Any network device with a MAC address starting F0:22:1D:7 was manufactured by or for Bulat Co., Limited.