What this means
The IEEE assigned the MA-M block A4580F6 to Astro, 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 A4:58:0F:6, it is Astro, Inc hardware.
Frequently Asked Questions
Who owns MAC prefix A4580F6?
A4580F6 is registered to Astro, 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. Astro, Inc's block covers 1,048,576 addresses.
What devices use A4580F6?
Any network device with a MAC address starting A4:58:0F:6 was manufactured by or for Astro, Inc.