What this means
The IEEE assigned the MA-L block 0009AA to Data Comm for Business, 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 00:09:AA, it is Data Comm for Business, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 0009AA?
0009AA is registered to Data Comm for Business, 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. Data Comm for Business, Inc.'s block covers 16,777,216 addresses.
What devices use 0009AA?
Any network device with a MAC address starting 00:09:AA was manufactured by or for Data Comm for Business, Inc..