What this means
The IEEE assigned the MA-L block 401597 to Protect America, 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 40:15:97, it is Protect America, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 401597?
401597 is registered to Protect America, 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. Protect America, Inc.'s block covers 16,777,216 addresses.
What devices use 401597?
Any network device with a MAC address starting 40:15:97 was manufactured by or for Protect America, Inc..