What this means
The IEEE assigned the MA-L block 0026DC to Optical Systems Design. 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 00:26:DC, it is Optical Systems Design hardware.
Frequently Asked Questions
Who owns MAC prefix 0026DC?
0026DC is registered to Optical Systems Design 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. Optical Systems Design's block covers 16,777,216 addresses.
What devices use 0026DC?
Any network device with a MAC address starting 00:26:DC was manufactured by or for Optical Systems Design.