What this means
The IEEE assigned the MA-L block 901EDD to GREAT COMPUTER 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 90:1E:DD, it is GREAT COMPUTER CORPORATION hardware.
Frequently Asked Questions
Who owns MAC prefix 901EDD?
901EDD is registered to GREAT COMPUTER 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. GREAT COMPUTER CORPORATION's block covers 16,777,216 addresses.
What devices use 901EDD?
Any network device with a MAC address starting 90:1E:DD was manufactured by or for GREAT COMPUTER CORPORATION.