What this means
The IEEE assigned the MA-L block 00905A to DEARBORN GROUP, 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 00:90:5A, it is DEARBORN GROUP, INC. hardware.
Frequently Asked Questions
Who owns MAC prefix 00905A?
00905A is registered to DEARBORN GROUP, 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. DEARBORN GROUP, INC.'s block covers 16,777,216 addresses.
What devices use 00905A?
Any network device with a MAC address starting 00:90:5A was manufactured by or for DEARBORN GROUP, INC..