What this means
The IEEE assigned the MA-M block 90A9F7B to Kranze Technology Solutions, 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 90:A9:F7:B, it is Kranze Technology Solutions, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 90A9F7B?
90A9F7B is registered to Kranze Technology Solutions, 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. Kranze Technology Solutions, Inc.'s block covers 1,048,576 addresses.
What devices use 90A9F7B?
Any network device with a MAC address starting 90:A9:F7:B was manufactured by or for Kranze Technology Solutions, Inc..