What this means
The IEEE assigned the MA-M block A44F291 to Olssen B.V.. 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 A4:4F:29:1, it is Olssen B.V. hardware.
Frequently Asked Questions
Who owns MAC prefix A44F291?
A44F291 is registered to Olssen B.V. 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. Olssen B.V.'s block covers 1,048,576 addresses.
What devices use A44F291?
Any network device with a MAC address starting A4:4F:29:1 was manufactured by or for Olssen B.V..