What this means
The IEEE assigned the MA-L block 0021EE to Full Spectrum Inc.. 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 00:21:EE, it is Full Spectrum Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 0021EE?
0021EE is registered to Full Spectrum Inc. 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. Full Spectrum Inc.'s block covers 16,777,216 addresses.
What devices use 0021EE?
Any network device with a MAC address starting 00:21:EE was manufactured by or for Full Spectrum Inc..