What this means
The IEEE assigned the MA-M block F469D57 to Rosco, Inc. 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 F4:69:D5:7, it is Rosco, Inc hardware.
Frequently Asked Questions
Who owns MAC prefix F469D57?
F469D57 is registered to Rosco, Inc 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. Rosco, Inc's block covers 1,048,576 addresses.
What devices use F469D57?
Any network device with a MAC address starting F4:69:D5:7 was manufactured by or for Rosco, Inc.