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