What this means
The IEEE assigned the MA-M block 083C033 to GlobalXtreme. 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 08:3C:03:3, it is GlobalXtreme hardware.
Frequently Asked Questions
Who owns MAC prefix 083C033?
083C033 is registered to GlobalXtreme 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. GlobalXtreme's block covers 1,048,576 addresses.
What devices use 083C033?
Any network device with a MAC address starting 08:3C:03:3 was manufactured by or for GlobalXtreme.