What this means

The IEEE assigned the MA-L block A085FC to Microsoft Corporation. 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 A0:85:FC, it is Microsoft Corporation hardware.

Frequently Asked Questions

Who owns MAC prefix A085FC?

A085FC is registered to Microsoft Corporation in the IEEE MA-L registry.

What does the MA-L registry type mean?

An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Microsoft Corporation's block covers 16,777,216 addresses.

What devices use A085FC?

Any network device with a MAC address starting A0:85:FC was manufactured by or for Microsoft Corporation.