What this means
The IEEE assigned the MA-L block 4037AD to Macro Image Technology, 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 40:37:AD, it is Macro Image Technology, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 4037AD?
4037AD is registered to Macro Image Technology, 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. Macro Image Technology, Inc.'s block covers 16,777,216 addresses.
What devices use 4037AD?
Any network device with a MAC address starting 40:37:AD was manufactured by or for Macro Image Technology, Inc..