What this means
The IEEE assigned the MA-M block 58AD085 to Vanguard Protex Global. 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 58:AD:08:5, it is Vanguard Protex Global hardware.
Frequently Asked Questions
Who owns MAC prefix 58AD085?
58AD085 is registered to Vanguard Protex Global 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. Vanguard Protex Global's block covers 1,048,576 addresses.
What devices use 58AD085?
Any network device with a MAC address starting 58:AD:08:5 was manufactured by or for Vanguard Protex Global.