Microsoft Corporation - MAC Prefix CCAA00 (MA-L)

What this means

The IEEE assigned the MA-L block CCAA00 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 CC:AA:00, it is Microsoft Corporation hardware.

Frequently Asked Questions

Who owns MAC prefix CCAA00?

CCAA00 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 CCAA00?

Any network device with a MAC address starting CC:AA:00 was manufactured by or for Microsoft Corporation.

Other Microsoft Corporation prefixes

Microsoft Corporation holds 107 registered blocks in total.

OUI prefix	CCAA00
Vendor	Microsoft Corporation
Registry	MA-L (24-bit, large block)
Block size	16,777,216 addresses
Country	US
Other blocks by this vendor	107 total
Example MAC	CC:AA:00:00:00:00