What this means
The IEEE assigned the MA-L block AA0003 to DIGITAL EQUIPMENT 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 AA:00:03, it is DIGITAL EQUIPMENT CORPORATION hardware.
Frequently Asked Questions
Who owns MAC prefix AA0003?
AA0003 is registered to DIGITAL EQUIPMENT 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. DIGITAL EQUIPMENT CORPORATION's block covers 16,777,216 addresses.
What devices use AA0003?
Any network device with a MAC address starting AA:00:03 was manufactured by or for DIGITAL EQUIPMENT CORPORATION.